A class in the phylum MOLLUSCA comprised of SNAILS and slugs. The former have coiled external shells and the latter usually lack shells.
Marine, freshwater, or terrestrial mollusks of the class Gastropoda. Most have an enclosing spiral shell, and several genera harbor parasites pathogenic to man.
A phylum of the kingdom Metazoa. Mollusca have soft, unsegmented bodies with an anterior head, a dorsal visceral mass, and a ventral foot. Most are encased in a protective calcareous shell. It includes the classes GASTROPODA; BIVALVIA; CEPHALOPODA; Aplacophora; Scaphopoda; Polyplacophora; and Monoplacophora.
A genus of planorbid freshwater snails, species of which are intermediate hosts of Schistosoma mansoni.
A genus of dextrally coiled freshwater snails that includes some species of importance as intermediate hosts of parasitic flukes.
A double-walled capsule found in jellyfish and other CNIDARIA whose functions include prey capture, defense, locomotion, and attachment. Nematocysts contain toxic CNIDARIAN VENOMS which are injected into the victim via a barbed tubule.
A genus of trematode liver flukes of the family Fasciolidae. Two species of this genus are F. hepatica and F. gigantica. The parasites are found in the liver and gallbladder and associated ducts in mammals and occasionally man. F. gigantica occurs rarely in man.
Constituent of the 40S subunit of eukaryotic ribosomes. 18S rRNA is involved in the initiation of polypeptide synthesis in eukaryotes.
Invertebrates or non-human vertebrates which transmit infective organisms from one host to another.
The relationships of groups of organisms as reflected by their genetic makeup.
Number of individuals in a population relative to space.
A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)
Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
DNA sequences encoding RIBOSOMAL RNA and the segments of DNA separating the individual ribosomal RNA genes, referred to as RIBOSOMAL SPACER DNA.
The total process by which organisms produce offspring. (Stedman, 25th ed)
A multistage process that includes cloning, physical mapping, subcloning, determination of the DNA SEQUENCE, and information analysis.
The study of animals - their morphology, growth, distribution, classification, and behavior.
The systematic arrangement of entities in any field into categories classes based on common characteristics such as properties, morphology, subject matter, etc.
Aid for consistent recording of data such as tasks completed and observations noted.
Enzyme systems containing a single subunit and requiring only magnesium for endonucleolytic activity. The corresponding modification methylases are separate enzymes. The systems recognize specific short DNA sequences and cleave either within, or at a short specific distance from, the recognition sequence to give specific double-stranded fragments with terminal 5'-phosphates. Enzymes from different microorganisms with the same specificity are called isoschizomers. EC 3.1.21.4.
A genus of chiefly Eurasian and African land snails including the principal edible snails as well as several pests of cultivated plants.
A country in western Europe bordered by the Atlantic Ocean, the English Channel, the Mediterranean Sea, and the countries of Belgium, Germany, Italy, Spain, Switzerland, the principalities of Andorra and Monaco, and by the duchy of Luxembourg. Its capital is Paris.
A historical and cultural entity dispersed across a wide geographical area under the political domination and influence of ancient Rome, bringing to the conquered people the Roman civilization and culture from 753 B.C. to the beginning of the imperial rule under Augustus in 27 B.C. The early city built on seven hills grew to conquer Sicily, Sardinia, Carthage, Gaul, Spain, Britain, Greece, Asia Minor, etc., and extended ultimately from Mesopotamia to the Atlantic. Roman medicine was almost entirely in Greek hands, but Rome, with its superior water system, remains a model of sanitation and hygiene. (From A. Castiglioni, A History of Medicine, 2d ed pp196-99; from F. H. Garrison, An Introduction to the History of Medicine, 4th ed, pp107-120)
A species of mussel in the genus MYTILUS, family MYTILIDAE, class BIVALVIA, known as the common mussel. It has a bluish-black shell and is highly edible.
One of the BIOLOGICAL SCIENCE DISCIPLINES concerned with the origin, structure, development, growth, function, genetics, and reproduction of animals, plants, and microorganisms.
The scientific discipline concerned with the physiology of the nervous system.
Remembrance of information from 3 or more years previously.
A class in the phylum MOLLUSCA comprised of mussels; clams; OYSTERS; COCKLES; and SCALLOPS. They are characterized by a bilaterally symmetrical hinged shell and a muscular foot used for burrowing and anchoring.
A genus of marine mussels in the family MYTILIDAE, class BIVALVIA. The species MYTILUS EDULIS is the highly edible common mussel.
In certain living species, a period of dormancy during the summer months marked by decreased metabolism.
Messages between computer users via COMPUTER COMMUNICATION NETWORKS. This feature duplicates most of the features of paper mail, such as forwarding, multiple copies, and attachments of images and other file types, but with a speed advantage. The term also refers to an individual message sent in this way.
A chronic inflammatory disease characterized by shiny, flat-topped, usually flesh-colored micropapules no larger than the head of a pin. Lesions are localized in the early stages, found chiefly on the lower abdomen, penis, and inner surface of the thighs. Distribution may become generalized as the disease progresses.
The fusion of a male gamete with a female gamete from the same individual animal or plant.
Microbodies which occur in animal and plant cells and in certain fungi and protozoa. They contain peroxidase, catalase, and allied enzymes. (From Singleton and Sainsbury, Dictionary of Microbiology and Molecular Biology, 2nd ed)
A group of organs stretching from the MOUTH to the ANUS, serving to breakdown foods, assimilate nutrients, and eliminate waste. In humans, the digestive system includes the GASTROINTESTINAL TRACT and the accessory glands (LIVER; BILIARY TRACT; PANCREAS).
A genus of side-gilled sea slugs in the family Pleurobranchidae, superorder GASTROPODA. They are opportunistic voracious feeders but prefer the sea anemone.

An estuarine neritid gastropod, Clithon corona, a potential reservoir of thermostable direct hemolysin-producing Vibrio parahaemolyticus. (1/336)

An estuarine neritid gastropod, Clithon corona, maintained in UV-irradiated recirculating artificial seawater with a salinity of 15 per mil (%o) was found to retain thermostable direct hemolysin (TDH)-producing Vibrio parahaemolyticus in the gut at significantly higher levels than TDH-non-producing one for at least 14 days. Another estuarine neritid gastropod, C. sowerbianus, was not able to support the preferential survival of TDH-producing organisms. This evidence suggests that, if TDH-producing vibrios are brought to estuaries inhabited by C. corona, repeated ingestion of V. parahaemolyticus by this gastropod could lead to accumulation of TDH-producing vibrios in the estuaries.  (+info)

Evolutionary conflict: sperm wars, phantom inseminations. (2/336)

A new experimental study has provided the first definitive evidence for conditional punishment of 'cheats' in a sperm-trading simultaneous hermaphrodite: the sea slug Chelidonura hirundinina. This also provides a rare unequivocal example of conditional reciprocity averting a 'tragedy of the commons' in biology.  (+info)

Slugs: potential novel vectors of Escherichia coli O157. (3/336)

Field and laboratory studies were performed to determine whether slugs could act as novel vectors for pathogen (e.g., Escherichia coli O157) transfer from animal feces to salad vegetables. Escherichia coli O157 was isolated from 0.21% of field slugs from an Aberdeenshire sheep farm. These isolates carried the verocytotoxin genes (vt1 and vt2) and the attaching and effacing gene (eae), suggesting that they are potentially pathogenic to humans. Strain typing using multilocus variable number tandem repeats analysis showed that slug and sheep isolates were indistinguishable. Laboratory experiments using an E. coli mutant resistant to nalidixic acid showed that the ubiquitous slug species Deroceras reticulatum could carry viable E. coli on its external surface for up to 14 days. Slugs that had been fed E. coli shed viable bacteria in their feces with numbers showing a short but statistically significant linear log decline. Further, it was found that E. coli persisted for up to 3 weeks in excreted slug feces, and hence, we conclude that slugs have the potential to act as novel vectors of E. coli O157.  (+info)

Heterogeneous perfusion of the paired gills of the abalone Haliotis iris Martyn 1784: an unusual mechanism for respiratory control. (4/336)

The abalone Haliotis iris retains the ancestral gastropod arrangement of a pair of bipectinate gills (ctenidia). The gills share a single branchial chamber, are supplied from a common haemolymph sinus and effectively support the whole of oxygen uptake by the animal. Using chronic indwelling cannulae and pulsed Doppler probes, post-branchial haemolymph oxygen partial pressures (PaO2) and haemolymph flow rates were measured in the left and right efferent ctenidial veins. During periods of internal hypoxia following emersion and handling, total branchial haemolymph flow (24.4+/-3.6 ml kg-1 min-1) was partitioned nearly equally between the left and right gills (13.3+/-2.6 and 10.8+/-1.4 ml kg-1 min-1, respectively) and their PaO2 values were similar (81.9+/-6.1 and 87.3+/-4.7 mmHg, respectively). In animals settled for >24 h, branchial haemolymph flow decreased to 9.1+/-2.1 ml kg-1 min-1, primarily resulting from a virtual shutdown of the left gill flow to only 4.6% of total flow (left, 0.41+/-0.34 ml kg-1 min-1; right, 8.6+/-2.0 ml kg-1 min-1). At rest, right gill PaO2 (85.5+/-6.8 mmHg) was essentially unchanged while PaO2 of the slowly perfused left gill rose to 105.3+/-10.2 mmHg, close to the PO2 of the exhalant seawater (104.5+/-3.1 mmHg). The aerobic metabolic scope of H. iris therefore appears to be met primarily by circulatory adjustments at the left gill, which at rest is highly perfusion limited (left Ldiff, 0.14+/-0.07; right Ldiff, 0.44+/-0.08).  (+info)

Host-symbiont relationships in hydrothermal vent gastropods of the genus Alviniconcha from the Southwest Pacific. (5/336)

Hydrothermal vent gastropods of the genus Alviniconcha are unique among metazoans in their ability to derive their nutrition from chemoautotrophic gamma- and epsilon-proteobacterial endosymbionts. Although host-symbiont relationships in Alviniconcha gastropods from the Central Indian Ridge in the Indian Ocean and the Mariana Trough in the Western Pacific have been studied extensively, host-symbiont relationships in Alviniconcha gastropods from the Southwest Pacific remain largely unknown. Phylogenetic analysis using mitochondrial cytochrome c oxidase subunit I gene sequences of host gastropods from the Manus, North Fiji, and Lau Back-Arc Basins in the Southwest Pacific has revealed a new host lineage in a Alviniconcha gastropod from the Lau Basin and the occurrence of the host lineage Alviniconcha sp. type 2 in the Manus Basin. Based on 16S rRNA gene sequences of bacterial endosymbionts, two gamma-proteobacterial lineages and one epsilon-proteobacterial lineage were identified in the present study. The carbon isotopic compositions of the biomass and fatty acids of the gastropod tissues suggest that the gamma- and epsilon-proteobacterial endosymbionts mediate the Calvin-Benson cycle and the reductive tricarboxylic acid cycle, respectively, for their chemoautotrophic growth. Coupling of the host and symbiont lineages from the three Southwest Pacific basins revealed that each of the Alviniconcha lineages harbors different bacterial endosymbionts belonging to either the gamma- or epsilon-Proteobacteria. The host specificity exhibited in symbiont selection provides support for the recognition of each of the host lineages as a distinct species. The results from the present study also suggest the possibility that Alviniconcha sp. types 1 and 2 separately inhabit hydrothermal vent sites approximately 120 m apart in the North Fiji Basin and 500 m apart in the Manus Basin.  (+info)

Fossilized soft tissues in a Silurian platyceratid gastropod. (6/336)

Gastropod shells are common in the fossil record, but their fossil soft tissues are almost unknown, and have not been reported previously from the Palaeozoic. Here, we describe a Silurian (approx. 425 Myr) platyceratid gastropod from the Herefordshire Lagerstatte that preserves the oldest soft tissues yet reported from an undoubted crown-group mollusc. The digestive system is preserved in detail, and morphological data on the gonads, digestive gland, pedal muscle, radula, mouth and foot are also available. The specimen is preserved three-dimensionally, and has been reconstructed digitally following serial grinding. Platyceratids are often found attached to echinoderms, and have been interpreted as either commensal coprophages or kleptoparasites. The new data provide support for an attached mode of life, and are suggestive of a coprophagous feeding strategy. The affinities of the platyceratids are uncertain; they have been compared to both the patellogastropods and the neritopsines. Analysis of the new material suggests that a patellogastropod affinity is the more plausible of these hypotheses.  (+info)

Shell disease: abnormal conchiolin deposit in the abalone Haliotis tuberculata. (7/336)

Shell disease in the abalone Haliotis tuberculata L. is characterized by a conchiolin deposit on the inner surface of the shell. The gross clinical signs appear similar to the Brown Ring Disease (BRD) of clams. BRD has been extensively described in clams and is known to be responsible for severe mortalities and the collapse of the clam aquaculture industry in western France. In the clam, it was found to be caused by the infection of the mantle by Vibrio tapetis. Brown protein deposits have been observed in various abalone species around the world; some of these have been associated with a fungal infection in New Zealand, but the ones described here are similar to bacterial infections observed in clams. Larger animals appeared to be more affected by the disease, and a positive correlation of the number of successive infections found in the shells with the level of infestation of the shell by borers suggests that boring polychaetes and sponges may be vectors of the disease, or that the parasite infestation may increase the susceptibility of the animal to this infection. There is no evidence, however, that this infection causes mortality in abalone.  (+info)

Oocyte and egg organization in the patellogastropod Lottia and its bearing on axial specification during early embryogenesis. (8/336)

In the basal gastropod Lottia, the apical region of the oocyte is normally the site where the meiotic apparatus attaches and polar body formation occurs following fertilization. This site marks the animal-vegetal axis of the egg. A stereotypical cleavage pattern is organized, and the segregation of developmental potential occurs along this axis during early development. The segregation of developmental potential is a relatively late event and probably does not start until after cleavage begins. By compressing oocytes during the process of germinal vesicle breakdown, the position where the meiotic apparatus attaches to the cell membrane can be altered so that it no longer corresponds to the apical end of the oocyte. This new site of polar body formation sets up a new animal-vegetal axis that organizes cleavage and the segregation of developmental potential. The timing of animal-vegetal axis specification in Lottia is much later than it is in derived gastropods with a precocious specification of the D quadrant.  (+info)

The effect of dietary substitution of casein with fishmeal, soybean meal and crustacean meal on the growth of the abalone Haliotis discus hannai Ino was determined. A 350 g casein per kilogram diet was included into the CS diet. The whole casein was then substituted by: (1) 300 g fishmeal and 200 g soybean meal per kilogram diet (FS), (2) 200 g fishmeal, 200 g soybean meal and 130 g krill meal per kilogram diet (FSK), (3) 200 g fishmeal, 200 g soybean meal and 280 g red crab meal per kilogram diet (FSC) or (4) 200 g fishmeal, 200 g soybean meal and 130 g shrimp head meal per kilogram diet (FSS). In addition, a 50-g by-product of green tea per kilogram diet was included in the FS diet to form the FSG diet. Sea tangle (ST)diet was supplied to abalone as a control feed. Weight gain, final shell length and final shell width of abalone fed with the various substitution feeds (FS, FSK, FSC, FSS and FSG) were not different from those obtained with the CS diet. All the formulated feeds, however, ...
Elysia chlorotica is not an ordinary sea slug (a mollusc). Elysia chlorotica is a photosynthetic sea animal. Like plants, it is capable of converting sunlight into energy.. The photosynthetic ability of Elysia chlorotica is the result of incorporation of algal (Vaucheria litorea) chloroplasts (organelles found in plant cells in which photosynthesis occurs) and chlorophyll producing genes into its molluscan cells. Vaucheria litorea belongs to the yellow-green algae of the class Xanthophyceae.. These slugs initially got the chlorophyll producing genes from the algae that they had eaten. Present generations of slugs have received these genes from their parent generations, and they are passing them to their daughter generations.. Elysia chlorotica gets its chlorophyll-making genes through genetic inheritance, but still is unable to carry out photosynthesis until it consumes adequate quantity of algae so as to receive necessary chloroplasts, which it is unable to produce by itself.. ...
Upper Cretaceous and Paleocene shallow marine mollusk-bearing sediments. Volume 2. The Gastropoda.Philippine Marine Mollusks Gastropoda Volume 2 Summary: File 69,65MB Philippine Marine Mollusks Gastropoda Volume 2 Free Download Searching for Philippine Marine.The Gastropod Genus Calyptraphorus (Rostellariidae: Stromboidea:.Scouting for Philippine Marine Mollusks Gastropoda Volume1 Do you really need this ebook of Philippine Marine Mollusks.A New Species of Contradusta (GASTROPODA: CYPRAEIDAE) from the Philippines. - Visaya vol. 4(1).Download and Read Philippine Marine Mollusks Gastropoda Volume1 Philippine Marine Mollusks Gastropoda Volume1 Bring home now the book enPDFd philippine marine.The eastern Pacific marine mollusks described by C.B. Adams. 21-136. 21. Turner, R.D. Volume 3 ...
Character analysis is performed based on anatomical information on 95 species of Sacoglossa (Mollusca, Opisthobranchia). Functional and developmental information is included, where available. Phylogenetic analysis to generic level is performed. The shelled Oxynoacea is a monophyletic group containing three families, Volvatellidae, Juliidae and Oxynoidae. The family Cylindrobullidae is excluded from the Sacoglossa, but forms a sister taxon. The non-shelled Placobranchacea is also a monophyletic group composed of two monophyletic superfamilies, Placobranchoidea (= Elysioidea) and Limapontioidea (= Stiligeroidea; = Polybranchoidea). Relationships among most genera included in the Placobranchoidea remain unresolved. The family Boselliidae is retained until further examination of the included species has shown whether it should be included in the Placobranchidae. The Platyhedylidae, comprising the genera Platyhedyle and Gascoignella, is included in the Placobranchoidea. Of the families included in ...
Synonyms for class Gastropoda in Free Thesaurus. Antonyms for class Gastropoda. 3 synonyms for class Gastropoda: class Gasteropoda, Gasteropoda, Gastropoda. What are synonyms for class Gastropoda?
A Biological Marvel - Photosynthetic Sea Slug. Note the bright green hue in the photograph.. This Sea Slug is a Biological Marvel - It is both an Animal and a Plant!!. Elysia chlorotica can make energy containing molecules without having to eat anything.. This is the first time that multicellular animals have been able to produce chlorophyll.. Elysia chlorotica is not an ordinary sea slug (a mollusc). Elysia chlorotica is a photosynthetic sea animal. Like plants, it is capable of converting sunlight into energy.. The photosynthetic ability of Elysia chlorotica is the result of incorporation of algal (Vaucheria litorea) chloroplasts (organelles found in plant cells in which photosynthesis occurs) and chlorophyll producing genes into its molluscan cells. Vaucheria litorea belongs to the yellow-green algae of the class Xanthophyceae.. These slugs initially got the chlorophyll producing genes from the algae that they had eaten. Present generations of slugs have received these genes from their ...
Browsing Faculty of AgriSciences by Title Transcriptome characterization of the South African abalone Haliotis midae using sequencing-by-synthesis ...
Looking for Gastropoda? Find out information about Gastropoda. The largest and most varied class in the phylum Mollusca, possibly numbering over 74,000 species and commonly known as snails. General characteristics The... Explanation of Gastropoda
Nudibranchs (/ˈnjuːdɪbræŋk/) are a group of soft-bodied, marine gastropod molluscs which shed their shells after their larval stage. They are noted for their often extraordinary colours and striking forms, and they have been given colourful nicknames to match, such as Clown, Marigold, Splendid, Dancer and Dragon. Currently, about 2,300 valid species of nudibranchs are known. The word nudibranch comes from the Latin nudus, naked, and the Greek βραγχια, brankhia, gills. Nudibranchs are often casually called sea slugs, as they are a family of Opistobranchs (sea slugs), with the phylum Mollusca (molluscs) but many sea slugs belong to several taxonomic groups which are not closely related to nudibranchs. A number of these other sea slugs, such as the photosynthetic Sacoglossa and the colourful Aglajidae, are often confused with nudibranchs. Nudibranchs occur in seas worldwide, including in the tropics and the Southern Ocean. Nudibranchs live at virtually all depths of salt ...
starfish-photos of Snails: Cassidae - Cerithiidae - Cypraeidae - Epitoniidae - Eulimidae - Lamellariidae - Naticidae - Ovulidae - Strombidae - Tonnidae - Triviidae - Velutinidae - Vermitidae Species on this page: Aclyvolva, Calpurnus, Cassis, Ceraesignum, Charonia, Coriocella, Crenavolva, Cribrarula, Cuspivolva, Cymatium, Cypraecassis, Cypraea, Dentiovula, Diminovula, Echineulima, Epitonium, Erronea, Eulima, Euprotomus, Hiatavolva, Lambis, Lyncina, Malea, Margistrombus, Margovula, Natica, Ovula, Palmadusta, Pellasimnia, Phalium, Phenacovolva, Polinices, Primovula, Prionovolva, Procalpurnus, Prosimnia, Pseudovertagus, Rhinoclavis, Semicassis, Strombus, Talostolida, Talparia, Thyca, Thylacodes, Tonna, Trivirostra, Volva
Several species of kleptoplastic, sacoglossan sea slug photosynthesize using chloroplasts sequestered inside their digestive cells from algal food sources. However, sequestered chloroplasts alone are
Citation. Harasewych, M. G., Adamkewicz, S. L., Blake, J. A., Saudek, D., Spriggs, T., Bult, C. J.. Phylogeny and Relationships of Pleurotomariid Gastropods (Mollusca: Gastropoda): an Assessment Based on Partial 18S RDNA and Cytochrome C Oxidase I Sequences. Mol Mar Biol Biotechnol. 1997 Mar 01; 6(1): 1-20.. PubMed Citation. Abstract. The phylogenetic position of the ancient family Pleurotomariidae within the Molluscan class Gastropoda, as well as the relationships of its Recent genera and species, were assessed using an iterative, two-gene (18S rDNA and cytochrome c oxidase I) approach to phylogeny reconstruction. In order to orient the Pleurotomariidae within Gastropoda, partial 18S rDNA sequences were determined for 7 pleurotomariid and 22 other gastropods that span the major groups within the class as well as for one cephalopod and two polyplacophorans, which serve as outgroups. Cladistic analyses of a sequence of approximately 450 base pairs (bp) near the 5 end of the 18S rDNA support the ...
Evolution and physiology of functional kleptoplasty in SacoglossaGregor ChristaDepartment of Biology, Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Portugal and Zoological Research Museum Alexander KoenigSome species of the marine gastropod taxa Sacoglossa are able to retain the chloroplasts of their algae food source and keep them functional
Shell formation and changes in body shape are important components of abalone development. The 2-DE results showed that at least two proteins (calmodulin (spot 75) [37] and calreticulin (spot 118) [38]) upregulated in the trochophore stage are involved in molluscan shell formation. Calmodulin and calreticulin were also identified in the larvae of the snail P. canaliculata during shell development [22] and in the Pacific oyster C. gigas [13]. The upregulation of both proteins indicates that they may contribute to the calcification of larval shells. According to the label-free analysis, additional proteins (CaM kinase II alpha, cadherin-like 3 protein, and calponin) involved in calcium ion transport and regulation were upregulated in the veliger stage. These proteins are likely involved in shell formation that occurs between trochophore and veliger larvae. In addition, calreticulin, as a protein-folding-related protein, can bind to misfolded proteins and either correct the protein folding or ...
Sea slug name for a marine gastropod mollusk that lacks a shell as an adult and is usually brightly colored. Australias Sea slugs, or nudibranchs, are distributed throughout the world, with the greatest numbers and the largest kinds found in tropical waters. They creep along the bottom or cling to submerged vegetation, usually in water just below the low tide line. Members of a few species swim on the surface in open ocean. Most sea slugs are under 1 in. (2.5 cm) long, although the largest, found in the Great Barrier Reef of Australia, reaches 12 in. (30 cm). Regarded by many people as the most beautiful of marine animals, sea slugs display a great array of solid colors and patterns. Many have feathery structures (ceratia) on the back, often in a contrasting color. Australia sea slugs have two pairs of tentacles on the head, used for tactile and chemosensory reception, with a small eye at the base of each tentacle. Sea slugs graze on small sessile animals such as coelenterates, sponges, and ...
Addresses: Haase M, Univ Basel, Dept Integrat Biol, Sect Conservat Biol, St Johanns Vorstadt 10, CH-4056 Basel, Switzerland. Univ Basel, Dept Integrat Biol, Sect Conservat Biol, CH-4056 Basel, Switzerland. Uppsala Univ, Dept Anim Ecol, Evolutionary Biol CAvailable from: 2008-10-17 Created: 2008-10-17 Last updated: 2011-01-14 ...
The taxonomy of the Gastropoda is still under revision, and more and more of the old taxonomy is being abandoned, as the results of DNA studies slowly become clearer. Nevertheless, a few of the older terms such as opisthobranch and prosobranch are still sometimes used in a descriptive way.. New insights based on DNA sequencing of gastropods have produced some revolutionary new taxonomic insights. In the case of the Gastropoda, the taxonomy is now gradually being rewritten to embody strictly monophyletic groups (only one lineage of gastropods in each group). Integrating new findings into a working taxonomy remain challenging. Consistent ranks within the taxonomy at the level of subclass, superorder, order, and suborder have already been abandoned as unworkable. Ongoing revisions of the higher taxonomic levels are expected in the near future.. Convergent evolution, which appears to exist at especially high frequency in gastropods, may account for the observed differences between the older ...
Uribe, R.A. et al. 2013: A review on the diversity and distribution of opisthobranch gastropods from Peru, with the addition of three new records (Gastropoda, Heterobranchia). Spixiana, 36 (1): 43-60. full article (PDF) ...
Define genus Haliotis. genus Haliotis synonyms, genus Haliotis pronunciation, genus Haliotis translation, English dictionary definition of genus Haliotis. Noun 1. genus Haliotis - type genus of the family Haliotidae Haliotis mollusk genus - a genus of mollusks family Haliotidae, Haliotidae - abalones abalone,...
Giant peroxisomes revealed by a comparative microscopy study of digestive gland cells of cephalaspidean sea slugs (Gastropoda, Euopisthobranchia) - Alexandre Lobo-da-Cunha, Elsa Oliveira, Ângela Alves, Gonçalo Calado
Nanoindentation method has been used to explore, at the nanoscale, the mechanical properties of four different representative types of conch shells belonging to the two biggest classes of molluscs, Gastropoda and Bivalvia, in order to compare nanohardness and Youngs modulus with respect to the microstructural anisotropic architectures. For the experimental tests a Nano Indenter XP (MTS Nano Instruments, Oak Ridge TN) has been used. The mechanical tests have been carried out on the inner and outer surfaces of the shells, as well as on their cross-section, near to the inner/outer surfaces and in the middle layer. The results confirm the three layered anisotropic architecture of the investigated conchs. On each of these 5 surfaces, 2 × 5 indentations have been performed at different maximum depth: from 250 nm to 4 μm, with a step of 250 nm, for a total of 3200 tests. The numerous observations have been analysed applying an ad hoc modification of the Weibull Statistics, suggesting a natural ...
The use of molecular clocks to estimate divergence times is controversially debated, due to conflicting results from different studies and disparities with paleontological or archaeological data [73-76]. Criticism focuses on the major problems such as faulty calibration, impact of rate heterogeneity among lineages, and time dependency of molecular rates [73, 75-77]. Some of the problems could be solved by the relaxed clock approach [78], and despite all pitfalls and criticism, molecular clock approaches have helped considerably to reveal the evolutionary history of life, especially when it comes to divergence times of groups with poor or no fossil record [75, 76, 79]. Thus, we consider it a valuable methodology to roughly estimate divergence times for tiny, sluggish gastropods for which there is no fossil record. Molecular clock dating stands and falls with the accuracy with which genetic distances can be estimated [80]; thus we consider the removal of ambiguous (i.e. potentially ...
The Checkerboard Discus is a relatively new color of the wild South American Discus, being a brilliant green coloration with red patterning. The overall coloration of Discus will vary depending on mood and overall health of the fish. Discus are among the most popular aquarium fish. Discus originate from a habitat of shaded water with branches and other dense cover and this habitat should be duplicated in the aquarium. High quality water conditions (warm, soft, acidic) must be maintained. Becoming slightly territorial when breeding, it is best to breed an established pair, or maintain a group of young Discus and allow them to pair themselves. Warm, soft, slightly acidic water is required for spawning. The pair will clean a flat surface (usually a broad leaf or the side of the aquarium) prior to spawning. The parents must not be removed from the fry; the fry feed on their parents mucus. Largely carnivorous, Symphysodon spp. prefers freeze-dried bloodworms and tubifex, pellet food designed for ...
Abstain from Feeds with discus meal because discus fish does not easily digest them. Salt is the most misused and overused chemical in the discus fishroom. [STEP 2] - Perform water changes of 35% daily. Keep your discus away from any form of stress, as listed above. [STEP 5] - Use of Epsom salt for relaxation of the muscle of the fish. [STEP 4] - Feed Your Discus Anti-bacterial Fish Food. Keep in mind that once you add Epsom salt to the tank that it will stay until you do a water change. Epsom salt (magnesium sulfate) is a laxitive. NOTE: Epsom salt will increase the discus fish metabolic rate which will help them quickly get everything out of them, so you will normally see poops increment in your tank. Epsom salts do not go away once added to the tank and will stay in the water until you change it, so you dont need to replace it unless you do a water change. Description. You have 5 days from the first time he begins headstanding to cure him if you lower the water level, 3 days if you do not. ...
Nudibranchs are gastropods that have naked branches (gills) hanging off their backs (hence the nudi), many with outlandish color schemes that appear to be a defense mechanism. But their alien characteristics are not just that they look stranger than anything that sci-fi has yet to produce. Some nudibranchs are Borg-like, assimilating weaponry and technology of other species into their own toxic arsenals. Many nudibranchs eat critters that have toxic weapons (stingers, nematocysts, poisons) then secrete the previously digested arsenal when attacked ...
Tropomyosin, in association with the troponin complex, plays a central role in the calcium dependent regulation of muscle contraction.
Author(s): White, Tracy Renae | Advisor(s): Barlow, Miriam | Abstract: Background: Reconstructing the higher relationships of pulmonate gastropods has been difficult. Morphology is problematic due to high homoplasy. Molecular studies have suffered from low taxon sampling. Forty-one complete mitochondrial genomes are available for gastropods, seven of which are pulmonates. Ten new complete mitochondrial genomes of pulmonates are presented here: Salinator rhamphidia (Amphiboloidea); Auriculinella bidentata, Myosotella myosotis, Ovatella vulcani, and Pedipes pedipes (Ellobiidae); Peronia peronii (Onchidiidae); Siphonaria gigas (Siphonariidae); Succinea putris (Stylommatophora); Trimusculus reticulatus (Trimusculidae); and Rhopalocaulis grandidieri (Veronicellidae). Also, 94 new pulmonate-specific primers across the entire mitochondrial genome are provided, which were designed for amplifying genomes through simultaneous, short reactions. Results: The structural features of the 10 new mitochondrial genomes
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original description Swennen C. & Buatip S. (2009) Aiteng ater, new genus, new species, an amphibious and insectivorous sea slug that is difficult to classify (Mollusca: Gastropoda: Opisthobranchia: Sacoglossa(?): Aitengide, new family). The Raffles Bulletin of Zoology 57(2): 495-500. [details] ...
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Increasing temperature of seawater is often associated with increased exposure incidence of disease in field and in aquaculture populations. Numerous episodic mass mortalities of the abalone Haliotis tuberculata have been observed along the northern Brittany coast of France caused by a complex interaction between the host, pathogen and environmental factors. Here, we evaluated the potential of high-resolution melting (HRM) analysis for mutation genotyping and development of genetic markers for resistance to vibriosis in the gastropod species H. tuberculata. Small amplicon assays were developed and revealed genetic polymorphism between surviving and susceptible abalone obtained after two successive infections of aquaculture families in controlled conditions. Together with specific COI haplotypes, we identified particular genotypes in nascent polypeptide-associated complex subunit alpha and ferritin genes linked to the susceptibility or resistance of abalone to vibriosis. Selection of genitors based on
Limpets of the genus Lottia occupy a broad vertical distribution on wave-exposed rocky shores, a range that encompasses gradients in the frequency and severity of thermal and desiccation stress brought on by aerial emersion. Using western blot analysis of levels of heat-shock protein 70 (Hsp70), we …
The evolution of sea slugs from marine snails has occurred a number of times in the Opisthobranchia. The cephalaspid Bubble Shells show many examples of how the shell was gradually lost and the animal became larger, more elaborate and brightly coloured. A
p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.,/p> ,p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.,/p> ,p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).,/p> ,p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x,sup>64,/sup> + x,sup>4,/sup> + x,sup>3,/sup> + x + 1. The algorithm is described in the ISO 3309 standard. ,/p> ,p class=publication>Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.,br /> ,strong>Cyclic redundancy and other checksums,/strong>,br /> ,a href=http://www.nrbook.com/b/bookcpdf.php>Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993),/a>),/p> Checksum:i ...
1. The haemolymph concentration in the pomatiasids is higher than in any other terrestrial gastropods so far studied.. 2. P. elegans shows a yearly cycle of haemolymph concentration, showing maximum values in January and February 1971, and June and July 1971. Minimal values were obtained between March and May 1971.. 3. The concentration of calcium in the haemolymph (especially of Pomatias) is high, a value of 20.2 mM/l being obtained for one group of Pomatias. This reflects their dependence on calcareous soils for survival.. 4. Haemolymph and urine are isosmotic and isoionic.. 5. The mantle fluid is generally less concentrated than the haemolymph and urine, ionic reabsorption presumably occurring over the mantle epithelium. Potassium, calcium and magnesium ions are selectively reabsorbed.. 6. The highest haemolymph concentrations in pomatiasids were found in animals that inhabited areas with the least rainfall, and vice versa.. 7. During inactivity the percentage ionic composition of the ...
Bouchet & Rocroi (2005): Domain: Eukaryota • Regnum: Animalia • Subregnum: Eumetazoa • Cladus: Bilateria • Superphylum: Protostomia • Phylum: Mollusca • Classis: Gastropoda • Subclassis: Orthogastropoda • Superordo: Heterobranchia • Cladus: Opisthobranchia • Cladus: Euthyneura • Cladus: Nudipleura • Ordo: Nudibranchia • Subordo: Dexiarchia • Infraordo: Cladobranchia • Parvordo: Aeolidida • Superfamilia: Fionoidea • Familia: Tergipedidae Bergh, 1889 ...
Open Repository is based on and contributes to DSpace the open source tool for the management of digital assets. Open Repository is a service operated by Atmire. ...
Gastropoda, ar gasteropoded pe ar choftroadeged [2] a zo ur gevrennad eus skourrad ar Mollusca e-touesk eizh kevrennad hervez Word Register of Marines species WORMS[3] och heuliañ ar rummatadur klasel. Kevrennad lodenn vrasañ ar pezh a zo anvet kregin pe choazh melchwed gant an dud.. ...
Greve, C., Haase, M., Hutterer, R., Rödder, D., Ihlow, F., Misof, B. (2017): Snails in the desert: Species diversification of Theba (Gastropoda: Helicidae) along the Atlantic coast of NW Africa. - Ecology and Evolution (2017) 7: 5524 - 5538; DOI: 10.1002/ece3.3138
This dataset contains the digitized treatments in Plazi based on the original journal article Breure, Abraham S. H., Avila, Valentin Mogollon (2016): Synopsis of Central Andean Orthalicoid land snails (Gastropoda, Stylommatophora), excluding Bulimulidae. ZooKeys 588: 1-199, DOI: http://dx.doi.org/10.3897/zookeys.588.7906, URL: http://dx.doi.org/10.3897/zookeys.588.7906 ...
It is said that an army travels on its stomach. Hence, Gastropoda! I try to imagine what I would do if I saw this particular army coming toward me…. Margaret Hurst. ...
See an archive of all gastropoda stories published on the New York Media network, which includes NYMag, The Cut, Vulture, and Grub Street.
Read The morphofunctional characterization and ploidy levels of the digestive gland cells in prosobranch gastropod mollusks (Prosobranchia: Gastropoda) with special reference to somatic polyploidy, Russian Journal of Marine Biology on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
As we mentioned above, the diet for a discus should be varied in order to meet all its nutritional requirements.. One of the most favorite foods of discus fish is bloodworms. They are rich in protein, fiber, and fats thus providing the fish necessary nutrients for proper functioning.. The bloodworms can be administered live or frozen. However, we strictly recommend going for the frozen version as live tubifex worms contain the risk of parasites and food poisoning.. White worms are another popular food for the discus. They are full of proteins and even the fussy eaters enjoy them. They also make a good diet for the breeding discus, as they are high in proteins and allow the fish to quickly add size and mass.. The white worms can be easily cultivated at home using a non-transparent plastic container and a layer of peat soil. You can feed the white worms anything from rice flour and bread soaked in water to pasta and scraps of non-citrus fruits and vegetables.. Once you meet all the requirements of ...
Staden Package MacOS X release ============================== The first test release of the Mac OS X version of the Staden Package is now available. Most things appear to work fine, but we have done a relatively small amount of testing. So we STRONGLY advise that you do not use it for modifying your data, or if you do so be sure to make a backup copy first. The main purpose of this release is for you, the users, to provide feedback to us. So PLEASE do send comments and bug reports to staden-package at mrc-lmb.cam.ac.uk so that we can fix these before we make an official release. It is available from: ftp://ftp.mrc-lmb.cam.ac.uk/pub/staden/staden_package/macosx/staden.dmg This version contains a time-limited licence to run on any MacOS X system. The licence terminates on April 16th. We will not be issuing extensions to this licence as we will almost certainly have a new (probably still test) version before then. Also included is a compilation of the EMBOSS 2.2.0 package. EMBOSS is not part of the ...
The following taxonomic scheme is largely framed after Robert Barnes Invertebrate Zoology 5th Ed., with modifications from http://sn2000.taxonomy.nl/Main/Classification/35476.htm. Snails Commonly (and not) Encountered in the Marine Pet-Fish Interest:. The Class Gastropoda, the Snails: are divided into two Subclasses: Prosobranchia and Opisthobranchia, Subclass Prosobranchia: In turn divided into three living Orders: Archaeogastropoda, Mesogastropoda and Neogastropoda. Marine, freshwater and terrestrial. Name refers to the position of the internal organs and mantle cavity; anterior vs. the opisthobranchs where these are located posteriorly in the body. Aquatic species with one or two gills, Most have a shell and operculum (closeable cover). Most are dioecious (separate sexes). Order More primitive forms. Include abalones, limpets, turbans, neritids. Inadvanced species, typically with two bipectinate gills (right one may be reduced or absent), two auricle, two nephridia (osphradium simple, ...
Quantitative information on metazoan meiofaunal abundance and biomass was obtained from three continental shelf (at 40, 100 and 200 m depth) and four deep-sea stations (at 540, 700, 940 and 1540 m depth) in the Cretan Sea (South Aegean Sea, NE Mediterranean). Samples were collected on a seasonal basis (from August 1994 to September 1995) with the use of a multiple corer. Meiofaunal abundance and biomass on the continental shelf of the Cretan Sea were high, in contrast to the extremely low values reported for the bathyal sediments that showed values comparable to those reported for abyssal and hadal environments. In order to explain the spatial and seasonal changes in metazoan meiofauna these data were compared with: (1) the concentrations of food indicators (such as proteins, lipids, soluble carbohydrates and CPE) (2) the bacterial biomass (3) the flux of labile organic compounds to the sea floor at a fixed station (D7, 1540 m depth). Highly significant relationships between meiofaunal ...
source of synonymy Dayrat B. (2010). A monographic revision of basal discodorid sea slugs (Gastropoda, Opisthobranchia, Nudibranchia, Doridina). Proceedings of the California Academy of Sciences. Series 4, vol. 61, suppl. I, 1-403, 382 figs. [details] Available for editors ...
The brilliant emerald green sea slug, Elysia chlorotica, spends months living on sunlight just like plants. Its been called the photosynthesizing sea slug in the past, but how it manages to do this as well as it does is a complete mystery. In a new study appearing in theBiological Bulletin, researchers reveal that the sea slug has incorporated genes from the algae that it eats. There is no way on earth that genes from an alga should work inside an animal cell, saysSidney Pierce from the University of South Florida. And yet here, they do. They allow the animal to rely on sunshine for its nutrition. So if something happens to their food source, they have a way of not starving to death until they find more algae to eat.. Chloroplast are plant organelles that contain chlorophyll, the green photosynthetic pigment. Researchers have known since the 1970s that this sea slug steals chloroplasts from the alga Vaucheria litorea. The sea slugs embed the chloroplasts into their own digestive cells, ...
Rev. Acad. Canar. Ciena, Vol. XXV, 163-194 (diciembre de 2013) ADDITIONS TO THE INVENTORY OF THE SEA SLUGS (OPISTHOBRANCHIA AND SACOGLOSSA) FROM GUADELOUPE (LESSER ANTILLES, CARIBBEAN SEA) J. Ortea 1 , J. Espinosa2 , Y. Buske3 & M. Caballer4 1 Departamento BOS, Universidad de Oviedo, Asturias, Spain 2 Instituto de Oceanologia, Avda. l a n° 18406, E. 184 y 186, Playa, Havana, Cuba [email protected] 3 Residence les Tuileries, entree Romane, Batiment B, Ap. 27 Rue des Ixoras, Martinique 4 Centro de Oceanologia y Estudios Antarticos. IVIC. Ctra. Panamericana Km 11, Miranda, Venezuela [email protected] RESUMEN Se presenta una lista sistematica de 23 especies de babosas marinas, 18 opistobran-quios y 5 sacoglosos, recolectadas por primera vez en la isla de Guadalupe durante la mision Karubenthos-2012 (mayo y diciembre de 2012). Adicionalmente, se describen 1 genero y 8 especies nuevas para la ciencia (6 opistobranquios y 2 sacoglosos). Con estas aportaciones el inventario ...
Photosynthesis is a fundamental process sustaining heterotrophic organisms at all trophic levels. Some mixotrophs can retain functional chloroplasts from food (kleptoplasty), and it is hypothesized that carbon acquired through kleptoplasty may enhance trophic energy transfer through increased host growth efficiency. Sacoglossan sea slugs are the only known metazoans capable of kleptoplasty, but the relative fitness contributions of heterotrophy through grazing, and phototrophy via kleptoplasts, are not well understood. Fitness benefits (i.e. increased survival or growth) of kleptoplasty in sacoglossans are commonly studied in ecologically unrealistic conditions under extended periods of complete darkness and/or starvation. We compared the growth efficiency of the sacoglossan Elysia viridis with access to algal diets providing kleptoplasts of differing functionality under ecologically relevant light conditions. Individuals fed Codium fragile, which provide highly functional kleptoplasts, nearly ...
導讀:本文分為兩部份,第一部份為台灣的貝類1,459種;以及第二部份的33種新種及新亞種的描述。每一種有簡單的採集地紀錄,部份有同種異名或是化石的紀錄。本文所紀錄的台灣貝類,如下,薄石鱉科-Ischnochiton comptus (Gould)、Lepidozona coreanica (Reeve)。石鱉科-Rhyssoplax komaiana (Is. et Iw. Taki)、Liolophura loochooana (Broderip et Sowerby)、Acanthopleura spinosa (Bruguiere)、Onithochiton (Onithoplax) hirasei Pilsbry。鮑螺科-Haliotis asinina Linnaeus、Haliotis (Euhaliotis) discus Reeve、Haliotis (Sanhaliotis) japonica Reeve(=diversicolor auct.=supertexia Lischke=gruneri Philippi=aquatilis Reeve)、Haliotis (Sanhaliotis) varia Linnaeus(=planata Sowerbry)。透孔螺科-Emarginula fuliginea A. Adams、Rimula sp.、Scutus scapha Gmelin、Diodora cf. mus Reeve、Diodora ticaonica Reeve (=elaborata Sowerby)、Diodora galeata (Helbling)。笠螺科-Patella (Penepatella) stellaeformis ...
Mollusca molluscs, mollusks, soft bodied animals mostly with an internal or external calcareous shell --[researchers ToL ummzADW links] Aplacophora solenogasters, deep-sea worm like animals --[ummzADW links] Polyplacophora modern chitons (Chiton, Tonicella) --[ummzADW links] Monoplacophora mostly fossil, living species not discovered until 1977 (Neopilina) --[ummzADW links] Gastropoda slugs, snails & their relatives --[ ummzADW links] Prosobranchia snails (Buccinum, Calliostoma, Cerithium, Conus, Cypraea, Haliotis, Littorina, Murex, Oliva, Patella, Strombus, Thais) Heterobranchia (Architectonica, Nerinea, Pyramidella, Turbonilla) Opisthobranchia slugs Anaspidea (=Aplysiomorpha) (Aplysia -- sea hares) Cephalaspidea (Acteon) Gymnosomata (Clione) Notaspidea (Pleurobranchaea) Nudibranchia (Acanthodoris) --[dedicated site] Pulmonata Archaeopulmonata (Melampus) Basommatophora (Biomphalaria, Bulinus, Lymnaea) Stylommatophora land snails (Achatina, Arion, Helix, Liguus, Limax, Partula, Polymita, ...
With many names based on colored varieties resulting from controlled breeding, Symphysodon aequifasciata is referred to as the Red Turquoise Discus. The Red Turquoise Discus, is so named because of its striking turquoise and red stripes, red eyes, and red highlights on the fins. The overall coloration of Discus will vary depending on mood and overall health of the fish. As a result, this Discus is a favorite and prized collection member among hobbyists. The Red Turquoise Discus requires an advanced level of care due to its feeding habits and water filtration requirements. Territorial during spawning, this otherwise peaceful fish is among the schooling group, forming a well-defined nuclear family. Becoming slightly territorial when breeding, it is best to breed an established pair, or maintain a group of young Discus and allow them to pair themselves. Warm, soft, slightly acidic water is required for spawning. The pair will clean a flat surface (usually a broad leaf or the side of the aquarium) ...
Pedal mucus production rates were measured in the Antarctic limpet Nacella concinna (Strebel, 1908). Measurements were taken over 30-min and 24-h periods to allow the relative amounts of mucus produced on attachment to substrata and during normal locomotory phases to be calculated. Mucus produced while N. concinna was attaching accounted for 80% of the mucus produced in a 24-h period. Rates of production were also assessed in relation to shell length, foot area and tissue ash-free dry mass (AFDM). Twenty-four hour production rates for specimens ranging from 11.7 to 45.9 mm in length (21.0 to 85.2 mg tissue AFDM), ranged from 0.49 to 1.87 mg dry mass · day−1. On a foot area basis mucus production in a 24-h period ranged from 0.61 to 2.34 mg dry mass · cm−2 and was inversely related to animal size. Residuals analysis and multiple regression of mucus produced in a 30-min period against shell length, foot area and AFDM failed to show that any of these parameters accounted for a significantly ...
A number of shelled and shell-less gastropods are known to use multiple defensive mechanisms, including internally generated or externally obtained biochemically active compounds and structures. Within Nudipleura, nudibranchs within Cladobranchia possess such a special defense: the ability to sequester cnidarian nematocysts - small capsules that can inject venom into the tissues of other organisms. This ability is distributed across roughly 600 species within Cladobranchia, and many questions still remain in regard to the comparative morphology and evolution of the cnidosac - the structure that houses sequestered nematocysts (called kleptocnides). In this paper, we describe cnidosac morphology across the main groups of Cladobranchia in which it occurs, and place variation in its structure in a phylogenetic context to better understand the evolution of nematocyst sequestration. Overall, we find that the length, size and structure of the entrance to the cnidosac varies more than expected based on previous
Киричук, Г. Є. and Стадниченко, А. П. (2007) Дія хронічного отруєння іонами цинку на везикулярні клітини витушки (Mollusca: Gastropoda: Pulmonata: Bulinidae) інвазованою трематодою Echinoparyphium aconiatum. Матеріали ІІ Всеукраїнської науково-практичної конференції „Простір і час сучасної науки (1). pp. 1-2. ...
This dataset contains the digitized treatments in Plazi based on the original journal article Breure, Abraham S. H., Ablett, Jonathan D. (2012): Annotated type catalogue of the Bothriembryontidae and Odontostomidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London. ZooKeys 182: 1-70, DOI: http://dx.doi.org/10.3897/zookeys.182.2720, URL: http://dx.doi.org/10.3897/zookeys.182.2720 ...
Thecosome pteropods (pelagic mollusks) can play a key role in the food web of various marine ecosystems. They are a food source for zooplankton or higher predators such as fishes, whales and birds that is particularly important in high latitude areas. Since they harbor a highly soluble aragonitic shell, they could be very sensitive to ocean acidification driven by the increase of anthropogenic CO2 emissions. The effect of changes in the seawater chemistry was investigated on Limacina helicina, a key species of Arctic pelagic ecosystems. Individuals were kept in the laboratory under controlled pCO2 levels of 280, 380, 550, 760 and 1020 µatm and at control (0°C) and elevated (4°C) temperatures. The respiration rate was unaffected by pCO2 at control temperature, but significantly increased as a function of the pCO2 level at elevated temperature. pCO2 had no effect on the gut clearance rate at either temperature. Precipitation of CaCO3, measured as the incorporation of 45Ca, significantly declined as a
Vaucheria is a genus of Xanthophyceae or yellow-green algae. It is one of only two genera in the family Vaucheriaceae. The type species of the genus is Vaucheria disperma. Vaucheria exhibits apical growth from the tip of filaments forming mats in either terrestrial or freshwater environments. Its filaments form coenocytes with a large central vacuole pushing against the surrounding cytoplasm; the vacuole extends along the entire filament except for the growing tip. The chloroplasts are located on the periphery of the cytoplasm with the nuclei aggregating toward the center near the vacuole. It has a diplontic life cycle, previously thought to be haplontic. Vaucheria disperma Vaucheria litorea Guiry, M.D.; Guiry, G.M. (2008). Pseudodichotomosiphon. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Guiry, M.D.; Guiry, G.M. (2008). Vaucheria. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Lee, Robert Edward (2008). ...
The study was conducted to determine the optimum salinity levels (24 ppt, 28 ppt, 32 ppt, 36 ppt and 40 ppt) for the survival and settlement rates of H. asinina in a complete randomized design with three replicates each. The experimental animals were reared in 15 glass aquaria for the first run and in plexiglass for the second run. Feeding of Navicula spp. was done once a day. Temperature and dissolved oxygen were monitored throughout the experiment. Data were analyzed using One-Way ANOVA to determine significant difference among treatments at 0.05 level of significance using Social Package for Social Science. Result of the first run showed that 32 ppt had the highest mean survival (1.50%) and mean settlement rate (1.84%). Similar result was also observed in 32 ppt with highest mean survival (9.72%) and mean settlement rate (16.42%). Significant difference existed among treatments during the second run of the experiment. Results showed that 28 ppt and 32 ppt were the optimum salinity levels for ...
Discusdegeneration is a common back problem. Discus are round elastic cartilage discs that lie between the vertebraes. Read about discus deneration and how to treat and prevent the condition
The shell begins with the larval shell, the (usually) minute embryonic whorls known as the protoconch, which is often quite distinct from the rest of the shell and has no growth lines. From the protoconch, which forms the apex of the spire, the coils or whorls of the shell gradually increase in size. Normally the whorls are circular or elliptical in section. The spire can be high or low, broad or slender, according to the way the coils of the shell are arranged, and the apical angle of the shell varies accordingly. The whorls sometimes rest loosely upon one another (as in Epitonium scalare). They also can overlap the earlier whorls such that the earlier whorls may be largely or wholly covered by the later ones. When an angulation occurs, the space between it and the suture above it constitutes the area known as the shoulder of the shell. The shoulder angle may be smooth or keeled, and may sometimes have nodes or spines. The most simple form of sculpture of the gastropod shell consists of ...
Sublethal effects of tributyltin and triphenyltin on larvae of four species of marine gastropods,the abalone Haliotis madaka,H.gigantea and H.discus discus and the topshell Batillus cornutus from Japan. ...
On September 9, 2016 the WooFDriver and his crew took to the Stony Valley Railroad Grade Trail for a WereWooFS adventure and found these Land Snails(terrestrial gastropod mollusks) crawling on headstones! Maybe they made their way here as most Land Snails only live one year! Some others however are known to live a little longer at 2-3 years.. Wikipedias Webpage to learn more about Land Snails. Enjoy these photos of snails the WooFDriver captured ...
Muricid molluscs are a organic source of brominated isatin with anticancer activity. In conclusion this study supports 6-bromoisatin in Muricidae extracts as a promising lead for prevention of colorectal cancer. model, ocean mollusc 1. Intro Isatin BAX (1[6] demonstrated that isatin at a focus of 100 Meters decreased cell expansion of human being promyelocytic leukemia (HL60) tumor cells by 80% and caused morphological adjustments constant with proapoptotic cells (including DNA fragmentation and chromatin moisture build-up or condensation). In another scholarly research by Igosheva [7], apoptosis was observed in human neuroblastoma SH-SY5Y cells exposed to 50 M of isatin. A range of mono-substituted isatins have been studied by Vine [8] for their cytotoxicity on a lymphoma (U937) cell line. Structure activity relationship studies have shown that substitution with halogens (5-bromo-, 5-iodo-, and 5-fluoroisatin) yielded 5C10 times more activity for killing cancer cells, than the unsubstituted ...
My discus got pectoral fin stick to their body. In fact one got the left pectoral fin stick and the other the right pectoral fin. Ive also notice
Those whove been in contact fall into two camps: those who think the holes were probably caused by another mollusc, and those who think they were caused by a beetle. But tellingly, all the mollusc experts so far think that beetles of some sort must be responsible, and two have noted that theyve seen holes like this in terrestrial snail shells in the Mediterranean.. As Richard Wright and others have kindly pointed out, theres a 2004 book on Natural enemies of terrestrial molluscs with a detailed chapter on Coleoptera as predators of terrestrial gastropods by Bill Symondson of Cardiff University. Bills response must therefore be the most authoritative that Ive received but is still a guess: I would guess that these are the exit holes of drilid beetles, that parasitise many species of snails.. The great thing about Bills response is that it has turned the mystery on its head - its not about whats trying to get in but whats trying to get out! In support of the parasite theory: (1) there ...
Deep n Reef Shells : Neocancilla - Gastropoda Bivalvia Scaphopoda Polyplacophora Cephalopoda Fossil Pulmonata Gastropoda (Fresh Water) Bivalvia (Fresh Water) Heteropoda Pteropoda Books shells, shell, deep, reef, snail, land snail, shells from, fresh water, fossil
Deep n Reef Shells : Alycaeus - Gastropoda Bivalvia Scaphopoda Polyplacophora Cephalopoda Fossil Pulmonata Gastropoda (Fresh Water) Bivalvia (Fresh Water) Heteropoda Pteropoda Books shells, shell, deep, reef, snail, land snail, shells from, fresh water, fossil
Alibaba.com offers 132 conch child products. About 16% of these are other toys & hobbies, 1% are playground, and 1% are dolls. A wide variety of conch child options are available to you, such as free samples, paid samples.
http://www.biomedcentral.com/1472-6785/13/20 Herbivory of an invasive slug is affected by earthworms and the composition of plant communities Results Slug herbivory was significantly affected by both earthworms and plant species composition. Slugs damaged 60% less leaves when earthworms were present, regardless of the species composition of the plant communities. Percent leaf area consumed by slugs was 40%…
Ray, HC (1977) Contribution to the knowledge of the molluscan fauna of Maungmagan, Lower Burma (with descriptions of one new genus and species of the Family Turridae (Gastropoda) 8) Contribution to the knowledge of the molluscan fauna of Maungmagan, Lower Burma (with descriptions of one new genus and species of the Family Turridae (Gastropoda) 8) Indian Museum, Calcutta 1-150 Available at - Zoological Records (Burma marine ...
A faunal overview is presented of the molluscan families Amphibulimidae, Megaspiridae, Odontostomidae, Orthalicidae, Simpulopsidae in Bolivia, Ecuador, and Peru. These Central Andean countries are known for their biodiverse malacofauna, of which the superfamily Orthalicoidea takes relatively a large share. In this paper the five families containing 103 (sub)species, for which systematic information (original publication, type locality, type depository, summarizing literature) and distributional records are presented. All species are illustrated by photographs of the type material or, if this could not be located, by a reproduction of the original figure. The following new taxon is introduced: Thaumastus (Thaumastus) sumaqwayqu sp. n. Junior subjective synonyms are established for: Plekocheilus (Sparnotion) Pilsbry, 1944 = Plekocheilus (Eudolichotis) Pilsbry, 1896; Scholvienia (Thomsenia) Strebel, 1910 = Scholvienia Strebel, 1910; Sultana (Trachyorthalicus) Strebel, 1909 = Sultana (Metorthalicus)
Carrying their homes on their backs, snails are important in aquatic ecosystems, in which their grazing and scavenging of diatoms, algae and bacteria enhance nutrient recycling.
I felt the teeniest twinge of remorse about being mean about the AP Stylebooks venture into food. Because I now wish I had a copy just to see what it has to say about the biggest confusion in the biz: Food writer versus food critic. An organization that you would expect would have a pretty clear take on that let the whole journalism world down this week by doing a roundup Q&A confusing the two. Ive spent 28 years now answering Whats it like to be a food critic? with Im not a critic. I write about food. If the institutions dont know better, no wonder everyone wants to be a blogger.. All that ranted, I really wish the inimitable AA Gills main outlet would open his reviews up to the big wide world again (and not just so I can get more people looking here for porn stars scrotum). His writing is so great I can almost forgive him shooting a simian. Luckily, he also does interviews, and one in Oz made a fascinating argument against one of my food critic idols. I find the way she thought ...
On the other hand, its fascinating to see blogs, especially the conglomerate kind, morph as they attach themselves to advertisings soul-sucking teats. Already Big Food is able to slide shills designed to look like posts into some blogs (Hong Kong should sue over the appropriation of the name of one of its assets for processed crap), and the next menace looks to be ads off to the side that rudely interrupt your reading to drop virtual chicken or sausage into the editorial well. Whats that old computer term - GIGO?. New media is condemned to repeat the mistakes of the old in another way. When you sign up contributors and the material is recycled from their own chirpy narcissism, who is going to keep coming back? There are 8 million blogs out there. And HBO didnt get where it is with reruns.. This entry was posted n August 2007 and is filed under cyberswamp, processed crap. You can trackback from your own site. ...
Ketika kelomang tumbuh, hewan-hewan ini membutuhkan cangkang yang lebih besar. Karena cangkang siput utuh yang cocok ukurannya tidak begitu mudah ditemukan, persaingan kuat sering terjadi di antara kelomang untuk memperebutkan cangkang. Ketersediaan cangkang kosong di setiap tempat tertentu tergantung pada kelimpahan relatif gastropoda, dan umang-umang yang cocok ukurannya. Hal lain yang juga menentukan adalah populasi organisme yang memangsa gastropoda dan meninggalkan cangkang yang utuh.[8] Kelomang yang dipelihara bersama-sama dapat saling berkelahi atau bahkan membunuh saingannya untuk memperebutkan cangkang yang mereka inginkan. Namun, jika kelomang-kelomang itu berbeda-beda ukurannya secara signifikan, kejadian perebutan cangkang kosong itu akan menurun atau bahkan nihil.[9] Kelomang dengan cangkang yang terlalu kecil atau sempit tidak dapat bertumbuh secepat mereka yang cangkangnya pas, dan akan lebih tinggi peluangnya untuk dimangsa jika kelomang itu tidak dapat sepenuhnya masuk ...
Buckley and colleagues (Buckley et al., 2010) describe parental care in discus cichlids of the genus Symphysodon, demonstrate that immunoglobulin is present in the mucus secreted by breeding discus, and propose that discus might be an interesting novel model system for studies of mammal-like parental care.. Hildemann (Hildemann, 1959) appears to have been the first to describe parental care in discus, providing detailed analyses of the behaviours re-visited by Buckley and colleagues (Buckley et al., 2010). Parental investment is provided after fertilization of the eggs not just in discus but in all cichlids (ca. 1600 species), and many other families of fish (for reviews, see Blumer, 1979; Breder and Rosen, 1966; Gross and Sargent, 1985). In fact, parental care is exhibited in around 22% of teleost fish, and in 72% of non-teleost fish (Sargent and Gross, 1993). Sargent and Gross also review the literature and the proposed models that investigate the cost of reproduction and the parent-offspring ...
By Glynn, Peter W Enochs, Ian C; McCosker, John E; Graefe, Abigail N Abstract: Adult individuals of the pearlfish Carapus mourlani (Petit, 1934) occur commonly in the mantle cavity of the opisthobranch mollusc Dolabella auricularia (Lightfoot, 1786) in shallow marine waters of the Gulf of Chiriqui, Pacific Panama. Nearly 30% of the molluscan hosts collected during the day on a coral reef contained one or two fish. Feeding observations of a captive fish as well as the intact condition of the hosts ctenidium and other internal organs suggest that C. mourlani is an inquiline commensal and not parasitic. Fish curl around the ctenidium during the day and capture microcrustaceans when the fish emerge from their host at night to feed. From low-light infrared video recordings, Carapus was observed to accurately grasp rapidly swimming amphipods in nearly total darkness and ingest them. This symbiotic relationship appears to benefit Carapus by allowing the fish to avoid predators during the day and to ...
Pollen and Air Quality forecast for Arion, IA with air quality index, pollutants, pollen count and pollution map from Weather Underground.
Lipid and fatty acid composition of pre- and post-spawning blacklip (|i|Haliotis rubra|/i|) and greenlip (|i|Haliotis laevigata|/i|) abalone conditioned at two temperatures on a formulated feed
Land snail: Land snail, any of the approximately 35,000 species of snails (phylum Mollusca) adapted to life away from water. Most species are members of the subclass Pulmonata (class Gastropoda); a few are members of the subclass Prosobranchia. Typically, land snails live on or near the ground, feed on
Double cartilage, Conch, Lobes/IS by Brittany - Double cartilage with titanium prong set bubblegum opals, conch with prong set mint green swarovski, a
So at the moment I just have one of these push-fit bioplast heart labret studs in my conch: https://www.bodyjewelleryshop.com/online_store/silver-and-bioflex-labret-stud-purple-glitter-heart.cfm Ive had it in for a while but Im getting a bit bored of it and was trying to think of some interesting ideas of what jewellery I could wear in it. Im not really a fan of wearing a CBB in conch piercings but I do like BCRs in them. So anyway I just wondered what jewellery people wear in their
The effect of triploidy on the growth and survival of the indigenous abalone, Haliotis midae, over a 24 months period under commercial rearing conditions. van den Berg, NC ...
Part 1. Gastropoda; Prosobranchiata: Toxoglossa; Annals of The South African Museum v. 44 p. 73-163 Tucker, J.K. 2004 Catalog ... of recent and fossil turrids (Mollusca: Gastropoda). Zootaxa 682:1-1295. "Mangilia phoxos". Gastropods.com. Retrieved 16 ...
Part 1. Gastropoda; Prosobranchiata: Toxoglossa; Annals of The South African Museum, vol. 44 p. 73 -163. ... VI, p. 158; 1884 .Rolàn et al., Notes on West African Perrona (Gastropoda : Clavatulidae), with the description of a new ... I. Kantor; A. Sysoev; N. Puillandre (2011). "A new operational classification of the Conoidea (Gastropoda)". Journal of ...
"Gastropoda". Montana Natural Heritage Program. Retrieved 2011-07-22. "Crustacea". Montana Field Guide. Montana Department of ...
ISBN 0-03-025982-7. Ruppert, E.E.; Fox, R.S. & Barnes, R.D. (2004). "Gastropoda". Invertebrate Zoology (7th ed.). Brooks / Cole ...
Gastropoda)". Publications of the Seto Marine Biological Laboratory. 21 (1): 1-12. doi:10.5134/175801. 瀧巖 (1973). "駒井卓先生の追悼". ...
Gastropoda. Invertebrate Zoology. Vol.11. No.1: 134-155 Dautzenberg P. & Fischer H. (1896). Dragages effectués par l'Hirondelle ... 15-22 Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1-1295. ...
Gastropoda. Invertebrate Zoology. Vol.11. No.1: 134-155 Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M ... Gastropoda). Bollettino Malacologico. suppl. 2: 297-576 v t e. ...
Gastropoda)". Iheringia, Porto Alegre, Série Zoologia (48):3-56.page 13. v t e. ...
Part 1. Gastropoda; Prosobranchiata: Toxoglossa; Annals of The South African Museum v. 44 p. 73 - 163 Biolib.cz: Comitas ... Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1-1295. v t e. ...
Gastropoda. Invertebrate Zoology. Vol.11. No.1: 134-155 Hoffman, L.; Gofas, S.; Freiwald, A. (2020). A large biodiversity of " ... "skeneimorph" (Gastropoda: Vetigastropoda) species from the South Azorean Seamount Chain, with the description of seventeen new ...
I. Amphineura and Gastropoda. Bulletin of the Madras Government Museum, Natural History ns 1(no. 2, pt 6): 267 pp., 34 pls ... Part 1. Gastropoda. Memoirs of the Australian Museum 3(7): 395-488, 49 text figs Dautzenberg, P. (1923). Liste preliminaire des ...
Part 1. Gastropoda. Memoirs of the Australian Museum 3(7): 395-488 Hedley, C. 1907. Mollusca of Mast Head Reef, Queensland. ... Part 1. Gastropoda. Memoirs of the Australian Museum 3(7): 395-488 Hedley, C. 1899. The Mollusca of Funafuti. ...
Gastropoda. Invertebrate Zoology. Vol.11. No.1: 134-155 Bouchet, P. & Warén, A. (1986). Revision of the Northeast Atlantic ... bathyal and abyssal Aclididae Eulimidae, Epitonidae (Mollusca, Gastropoda). Bollettino Malacologico. suppl. 2: 297-576 v t e. ...
Gastropoda. Invertebrate Zoology. Vol.11. No.1: 134-155 Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M ... Bouchet & Warren, Revision of the North-East Atlantic bathyal and abyssal Turridae (Mollusca, Gastropoda); The Journal of ... Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1-1295. ...
Part 1. Gastropoda; Prosobranchiata: Toxoglossa; Annals of The South African Museum v. 44 pp. 73-163 Tucker, J.K. 2004 Catalog ... of recent and fossil turrids (Mollusca: Gastropoda). Zootaxa 682:1-1295 v t e. ...
Gastropoda. Invertebrate Zoology. Vol.11. No.1: 134-155 Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M ... 1-18] Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1-1295. ...
Part 1. Gastropoda; Prosobranchiata: Toxoglossa; Annals of the South African Museum. Annale van die Suid-Afrikaanse Museum. v. ... Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1-1295. doi:10.11646/ ...
Killeen I. J. & Oliver P. G. (2000). "A new species of Abyssochrysos (Gastropoda: Loxonematoidea) from the Oman margin". ... Gastropoda). Smithsonian Contributions to Zoology 290: 1-21 Bouchet P. (1991). "New records and new species of Abyssochrysos ( ...
Gastropoda". Boletin del Museo Nacional de Historia Natural, Chile. 49: 131-161. Reichler, Valeria A. (2017). "Estratigrafía y ... Gastropoda: Buccinulidae) and concordance with the fossil record". Molecular Phylogenetics and Evolution. 114 (2017): 367-381. ...
Bank, R. (2017). Classification of the Recent terrestrial Gastropoda of the World. Last update: July 16, 2017 v t e. ... in Portuguese) Thomé J. W. (1975) "Os gêneros da família Veronicellidae nas Américas (Mollusca; Gastropoda)". Iheringia, Porto ...
Wenz, W. (1938-1944). Gastropoda. Teil 1: Allgemeiner Teil und Prosobranchia. 1-1639. In: Schindewolf, O.H. (Ed.) Handbuch der ... according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). This family has no subfamilies. Genera within the ...
Gastropoda. Invertebrate Zoology. Vol.11. No.1: 134-155 Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M ... Figueira R.M. Andrade & Absalão R.S. (2012) Deep-water Raphitomidae (Mollusca, Gastropoda, Conoidea) from the Campos Basin, ... Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1-1295.. ...
Part 1. Gastropoda. Memoirs of the Australian Museum 3(7): 395-488, 49 text figs Schepman, M.M. 1913. Toxoglossa. 384-396 in ...
Gastropoda. II Teil. Jena, 17 (2) : 38-382, Kilburn, R.N. (1985). Turridae (Mollusca: Gastropoda) of southern Africa and ...
Gastropoda. Spencer Marshall and Willan. Kauri Snails. Department of Conservation (New Zealand). Powell A. W. B., New Zealand ...
Part 2. Gastropoda. Calcutta : Government Printer pp. 1-306. [73, 95] [Original rank: subgenus [of Rissoina]. Transferred to ...
Part 1. Gastropoda; Prosobranchiata: Toxoglossa; Annals of The South African Museum v. 44 p. 73-163 Barnard K.H. (1958), ... Part 1. Gastropoda; Prosobranchiata: Toxoglossa; Annals of The South African Museum v. 44 p. 73-163 v t e. ... I. Kantor; A. Sysoev & N. Puillandre (2011). "A new operational classification of the Conoidea (Gastropoda)". Journal of ...
Part 2. Gastropoda. Calcutta : Government Printer pp. 1-306. Bartsch, P. 1915. Report on the Turton collection of South African ...
Gastropoda: Soleolifera). Revision de los Veronicellidae de Mexico (Gastropoda: Soleolifera)". Revista Mexicana de ... Naranjo-García E., Thomé J. W. & Castillejo J. (2007). "A review of the Veronicellidae from Mexico (Gastropoda: Soleolifera). ... Fernández de V, J. 1992: Contribución al conocimiento de las babosas y sietecueros (Mollusca: Gastropoda) Revista de la ... Thomé J. W. (1975). "Os gêneros da familia Veronicellidae nas Américas (Mollusca; Gastropoda)". Iheringia Zoologia 48: 3-56. ...
Melvill c& Standen (1903), Descriptions of 68 new gastropoda from the Red Sea, the Gulf of Oman and the Northern Arabian Sea; ... Part 1. Gastropoda; Prosobranchiata: Toxoglossa; Annals of The South African Museum v. 44 p. 73-163. ... I. Kantor; A. Sysoev & N. Puillandre (2011). "A new operational classification of the Conoidea (Gastropoda)". Journal of ...
The class Gastropoda contains a vast total of named species, second only to the insects in overall number. The fossil history ... Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are ... Kay, A.; Wells, F. E.; Poder, W. F. (1998). "Class Gastropoda". In Beesley, P. L.; Ross, G. J. B.; Wells, A. (eds.). Mollusca: ... The class Gastropoda has an extraordinary diversification of habitats. Representatives live in gardens, woodland, deserts, and ...
Taxonomy of the Gastropoda (Bouchet et al., 2017) Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005) - A system for the ... The taxonomy of the Gastropoda, as revised by Winston Ponder and David R. Lindberg in 1997, is an older taxonomy of the class ... An example of such taxonomy follows: Class Gastropoda Cuvier, 1797 Incertæ sedis Order Bellerophontinaka (fossil) Order ... Gastropoda, the class of molluscs consisting of all snails and slugs. The full name of the work in which this taxonomy was ...
Alternative phylogeny of Gastropoda after Parker, 1982. ,==o GASTROPODA Cuvier, 1797 (kotilot) ,--o PATELLOGASTROPODA ()? , ,-- ... Partial phylogeny of basal Gastropoda by Wagner, 2002. ...
See also category: Gastropoda, Genera of Gastropoda, Families of Gastropoda and Orders of Gastropoda. ... This category is automatically filled by the use of {{Taxonavigation}} with parameter include=Gastropoda.. This category should ... Pages in category "Species of Gastropoda". The following 200 pages are in this category, out of 1,474 total. ... Retrieved from "https://commons.wikimedia.org/w/index.php?title=Category:Species_of_Gastropoda&oldid=186441383" ...
SEA SLUGS, SNAILS, AND LIMPETS: Gastropoda. NO COMMON NAME (Corolla spectabilis): SPECIES ACCOUNTS. ROMAN SNAIL (Helix pomatia ... "Sea Slugs, Snails, and Limpets: Gastropoda." Grzimeks Student Animal Life Resource. . Encyclopedia.com. (September 15, 2019). ... Home Science Encyclopedias almanacs transcripts and maps Sea Slugs, Snails, and Limpets: Gastropoda ... Sea Slugs, Snails, and Limpets: Gastropoda Grzimeks Student Animal Life Resource COPYRIGHT 2005 Thomson Gale ...
The gastropoda is the largest and most certainly the best-known Class of all the molluscs. They are the most successful of the ... The most highly developed eyes of all the gastropods are found in the pelagic sea hares, however most gastropoda eyes are but ... As a result of torsion, all members of the gastropoda class except the Archeogastropoda (they still have both nephridia) have ... These shell changes and body adaptations resulted in the Gastropoda being divided into three subclasses: ...
are different scientific names that pertain to the same taxon, for example two names for the same species. One basic principle of zoological nomenclature is that the earliest correctly published and available name (the senior synonym) takes precedence and must be used for the taxon, if no other restrictions interfere ...
... identification and distribution of Gastropoda - Snails, Slugs, Limpets, Nudibranchs -- Discover Life ... The Class: Gastropoda includes most molluscs, with perhaps 60,000 existing species and 15,000 fossil forms. Generally, the ...
... gastropoda • molluscs • shot • snails Top tags: sound effects • games shop • service repair manual • yamaha ...
... gastropoda • molluscs • snails • whole • world Top tags: sound effects • games shop • service repair manual • yamaha ...
Thollesson M (1999b) Phylogenetic analysis of Euthyneura (Gastropoda) by means of the 16S rRNA gene: use of a fastgene for ... Martynov AV, Schrödl M (2009) The new Arctic side-gilled sea slug genus Boreoberthella (Gastropoda, Opisthobranchia): ... Thollesson M (1999a) Phylogenetic analysis of dorid nudibranchs (Gastropoda: Doridacea) using the mitochondrial 16S rRNA gene. ... Wollscheid-Lengeling E, Boore J, Brown W, Wägele H (2001) The phylogeny of Nudibranchia (Opisthobranchia, Gastropoda, Mollusca ...
Nomenclature The taxon Gastropoda was first introduced by Cuvier (1795: 448, as French vernacular name "les Gastéropodes"), ... Nowadays the classification of Gastropoda undergoes considerable reorganization in the attempt to bring it as close as possible ... Nomenclature The taxon Gastropoda was first introduced by Cuvier (1795: 448, as French vernacular name "les Gastéropodes"), ... Nomenclature The taxon Gastropoda was first introduced by Cuvier (1795: 448, as French vernacular name "les Gastéropodes"), ...
Imposex in Thaisella chocolata (Duclos, 1832) (Gastropoda: Muricidae) Caldera Bay, Chile. Imposex en Thaisella chocolata ( ... Imposex and reproductive failure in Hydrobia ulvae (Gastropoda, Prosobranchia). Mar. Biol., 128: 257-266. [ Links ]. ... The morphological expression of imposex in Nucella lapillus (Linnaeus) (Gastropoda, Muricidae). J. Mollus. Stud., 57: 375-390 ... Indicadores de agregación reproductiva de Thais chocolata (Duelos, 1832) (Gastropoda, Thaididae) en Caleta Punta Arenas (21° ...
The long way to diversity--phylogeny and evolution of the Heterobranchia (Mollusca: Gastropoda).. Dinapoli A1, Klussmann-Kolb A ... Heterobranchia are one of the most species rich groups within Gastropoda, with poorly resolved phylogenetic relationships ...
The Scientific World Journal is a peer-reviewed, Open Access journal that publishes original research, reviews, and clinical studies covering a wide range of subjects in science, technology, and medicine. The journal is divided into 81 subject areas.
Aspects of the Neurophysiology of Buccinum Undatum L. (Gastropoda) Message Subject (Your Name) has sent you a message from ...
Taxonomic revision of Leiostracus onager and Leiostracus subtuszonatus (Gastropoda: Pulmonata: Orthalicidae). Journal of ... A new Oxychona species (Gastropoda: Pulmonata: Orthalicidae) from Bahia state, Brazil. Journal of Conchology 41(3):315-318. [ ...
... Dataset homepage ... Avila V M (2015). Synopsis of Central Andean Orthalicoid land snails (Gastropoda, Stylommatophora), excluding Bulimulidae. ... Gastropoda, Stylommatophora), excluding Bulimulidae. ZooKeys 588: 1-199, DOI: http://dx.doi.org/10.3897/zookeys.588.7906, URL: ...
The class Gastropoda in the phylum Mollusca includes the snails and slugs, encompassing many freshwater and marine species. ... Aquatic Snail (Gastropoda) Movies. Carrying their homes on their backs, snails are important in aquatic ecosystems, in which ...
New species of Muricidae Rafinesque, 1815 (Mollusca Gastropoda) from... Host specificity of parasitic gastropods of the genus ... Didier Merle and Bernard Garrigues "Description of four new species of Muricidae (Mollusca, Gastropoda) from the Philippines ... First record of Cocculinella (Mollusca, Gastropoda, Cocculiniformia) from the Lower... Nine new species of Muricidae Rafinesque ... Didier Merle, Bernard Garrigues "Description of four new species of Muricidae (Mollusca, Gastropoda) from the Philippines and ...
Gastropoda animals include snails, slugs, limpets, and sea hairs -and the characteristics of Gastropada are wide ranging as the ... Do you know what the marine biology term Gastropoda means? The class Gastropoda includes snails, slugs, limpets and sea ... Gastropoda Characteristics Many gastropods such as snails and limpets have one shell. Sea slugs, like nudibranchs and sea hares ...
Rafael Álvarez Nogal, and Pilar Molist García, " The outer mantle epithelium of Haliotis tuberculata (Gastropoda Haliotidae): ... Gastropoda, Haliotidae). I. Bravo Portela,1 V. S. Martinez-Zorzano,2 I. Molist- Perez,3 and P. Molist García3 ... Gastropoda: Haliotidae) ," Acta Zoologica, 2014. View at Publisher · View at Google Scholar ...
MIRANDA, Marcel S. and FONTENELLE, José H.. Population dynamics of Megalobulimus paranaguensis (Gastropoda: Pulmonata) in the ...
Intracellular Immunohistochemical Detection of Tetrodotoxin in Pleurobranchaea maculata (Gastropoda) and Stylochoplana sp. ( ... "Intracellular Immunohistochemical Detection of Tetrodotoxin in Pleurobranchaea maculata (Gastropoda) and Stylochoplana sp. ( ... Intracellular Immunohistochemical Detection of Tetrodotoxin in Pleurobranchaea maculata (Gastropoda) and Stylochoplana sp. ( ... Gastropoda) and Stylochoplana sp. (Turbellaria). Mar. Drugs 2015, 13, 756-769. ...
Curtis LA (1997) Ilyanassa obsoleta (Gastropoda) as a host for trematodes in Delaware estuaries. J Parasitol 83:793-803CrossRef ... Crisp M (1969) Studies on the behavior of Nassarius obsoletus (Say) (Mollusca, Gastropoda). Biol Bull 136:355-373CrossRefGoogle ... Lauckner G (1980) Diseases of mollusca: Gastropoda. In: Kinne O (ed) Diseases of marine animals, vol 1. Wiley, New York, pp 311 ... Hamilton PV (1978) Intertidal distribution and long term movement of Littorina irrorata (Mollusca: Gastropoda). Mar Biol 46:49- ...
Relating Depth and Diversity of Bivalvia and Gastropoda in Two Contrasting Sub-Arctic Marine Regions. Hronn Egilsdottir1,2*, ... Citation: Egilsdottir H, McGinty N and Gudmundsson G (2019) Relating Depth and Diversity of Bivalvia and Gastropoda in Two ... Keywords: diversity, alpha diversity, beta diversity, nestedness, bivalvia, gastropoda, Arctic, Iceland. ...
... Dataset ... Vinarski M V (2010). A new species of stagnicoline snails (Mollusca: Gastropoda: Lymnaeidae) from the extreme North of Western ... Gastropoda: Lymnaeidae) from the extreme North of Western Siberia. Zootaxa 2817: 55-58, DOI: 10.5281/zenodo.200853 Taxonomic ...
  • Classification The classification of the Gastropoda in three subclasses Prosobranchia, Opisthobranchia and Pulmonata had been set as a standard by Thiele (1929-1931) throughout the XXth century and is still presented in major textbooks (e.g. (marinespecies.org)
  • MIRANDA, Marcel S. and FONTENELLE, José H. . Population dynamics of Megalobulimus paranaguensis (Gastropoda: Pulmonata) in the southeast coast of Brazil. (scielo.br)
  • Giant land snail shell Powelliphanta traversi traversi (Powell) (Gastropoda: Pulmonata: Rhytididae). (naturespic.com)
  • The taxonomy of the Gastropoda, as revised by Winston Ponder and David R. Lindberg in 1997, is an older taxonomy of the class Gastropoda, the class of molluscs consisting of all snails and slugs. (wikipedia.org)
  • The class Gastropoda in the phylum Mollusca includes the snails and slugs, encompassing many freshwater and marine species. (fsu.edu)
  • The class Gastropoda includes snails, slugs, limpets and sea hares. (thoughtco.com)
  • The Gastropoda or gastropods , more commonly known as snails and slugs , are a large taxonomic class within the phylum Mollusca . (wikiplanet.click)
  • The class Gastropoda includes snails and slugs of all kinds and all sizes from microscopic to Achatina achatina , the largest known land gastropod. (wikiplanet.click)
  • In order to orient the Pleurotomariidae within Gastropoda, partial 18S rDNA sequences were determined for 7 pleurotomariid and 22 other gastropods that span the major groups within the class as well as for one cephalopod and two polyplacophorans, which serve as outgroups. (jcvi.org)
  • Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class in the phylum, with 65,000 to 80,000 living snail and slug species. (wikipedia.org)
  • This dataset contains the digitized treatments in Plazi based on the original journal article Breure, Abraham S. H., Avila, Valentin Mogollon (2016): Synopsis of Central Andean Orthalicoid land snails (Gastropoda, Stylommatophora), excluding Bulimulidae. (gbif.org)
  • Evolutionary implications of hemiphally in the land snail Zonitoides nitidus (Gastropoda: Stylommatophora: Zonitidae). (umich.edu)
  • Naturalised terrestrial Stylommatophora (Mollusca: Gastropoda). (landcareresearch.co.nz)
  • Serina Gredler (Gastropoda, Stylommatophora: Enidae), the continuous-peristomed mountain snails endemic to the eastern slope of the Qinghai-Xizang Plateau. (semanticscholar.org)
  • The class Gastropoda contains a vast total of named species, second only to the insects in overall number. (wikipedia.org)
  • Heterobranchia are one of the most species rich groups within Gastropoda, with poorly resolved phylogenetic relationships especially in basal taxa. (nih.gov)
  • This dataset contains the digitized treatments in Plazi based on the original journal article Vinarski, Maxim V. (2011): A new species of stagnicoline snails (Mollusca: Gastropoda: Lymnaeidae) from the extreme North of Western Siberia. (gbif.org)
  • The phylogenetic position of the ancient family Pleurotomariidae within the Molluscan class Gastropoda, as well as the relationships of its Recent genera and species, were assessed using an iterative, two-gene (18S rDNA and cytochrome c oxidase I) approach to phylogeny reconstruction. (jcvi.org)
  • A gleam in the dark: Phylogenetic species delimitation in the confusing spring-snail genus Bythinella Moquin-Tandon, 1856 (Gastropoda: Rissooidea: Amnicolidae). (foliamalacologica.com)
  • Ana Paula S. Dornellas and Luiz Ricardo L. Simone "Comparative Morphology and Redescription of Three Species of Calliostoma (Gastropoda, Trochoidea) from Brazilian Coast," Malacologia 56(1&2), 267-293, (1 December 2013). (bioone.org)
  • Radiation and phylogeography in a spring snail Bythinella (Mollusca: Gastropoda: Rissooidea) in continental Greece. (foliamalacologica.com)
  • The long way to diversity--phylogeny and evolution of the Heterobranchia (Mollusca: Gastropoda). (nih.gov)
  • Stadnychenko A.P. Pathogenic effect of trematode larvae on Viviparus vivparus (L., 1758) (Gastropoda, Prosobranchia). (kpfu.ru)
  • Radoman (Gastropoda, Prosobranchia). (foliamalacologica.com)
  • Hydrobioidea of Poland (Prosobranchia: Gastropoda). (foliamalacologica.com)
  • 2007. Molecular phylogenetics of Caenogastropoda (Gastropoda: Mollusca). (tolweb.org)
  • 1998. Phylogenetic relationships of the lower Caenogastropoda (Mollusca, Gastropoda, Architaenioglossa, Campaniloidea, Cerithioidea) as determined by partial 18S rDNA sequences. (tolweb.org)
  • Carmona L, Pola M, Gosliner TM, Cervera JL (2013) A tale that morphology fails to tell: a molecular phylogeny of Aeolidiidae (Aeolidida, Nudibranchia, Gastropoda). (springer.com)
  • Crisp M (1969) Studies on the behavior of Nassarius obsoletus (Say) (Mollusca, Gastropoda). (springer.com)
  • Radular anatomy and systematics of the west American Conidae (Mollusca, Gastropoda). (amnh.org)
  • Shimkovich E.D. The role of differences in trematode invasion of male and female viviparids (Mollusca, Gastropoda, Viviparidae) of Central Polesia in reproduction of their populations. (kpfu.ru)
  • Uvaeva E.I., Shurova N.M. Assessment of the ecological well-being of water bodies using the sexual structure of Viviparus viviparus L. (Mollusca, Gastropoda, Viviparidae) populations. (kpfu.ru)
  • Nomenclature The taxon Gastropoda was first introduced by Cuvier (1795: 448, as French vernacular name "les Gastéropodes"), alongside. (marinespecies.org)
  • Taxonomy of the Gastropoda (Bouchet et al. (wikipedia.org)
  • 2017) Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005) - A system for the scientific classification of gastropod mollusks Ponder W. & Lindberg D. R. (1997). (wikipedia.org)
  • The usual systematic arrangement of the class Gastropoda involves three somewhat unequal subclasses. (thefreedictionary.com)
  • Bythinella hansboetersi Glöer et Pešić, 2006 (Gastropoda: Rissooidea) in Bulgaria: its morphology, molecular distinctness, and phylogeography. (foliamalacologica.com)
  • The class Gastropoda has an extraordinary diversification of habitats. (wikipedia.org)
  • The gastropoda is the largest and most certainly the best-known Class of all the molluscs. (manandmollusc.net)
  • Nowadays the classification of Gastropoda undergoes considerable reorganization in the attempt to bring it as close as possible to a changing phylogenetic hypothesis of the class. (marinespecies.org)
  • Rafael Álvarez Nogal, and Pilar Molist García, " The outer mantle epithelium of Haliotis tuberculata (Gastropoda Haliotidae): an ultrastructural and histochemical study using lectins ," Acta Zoologica , 2014. (hindawi.com)
  • Pilar Molist, Rafael Álvarez Nogal, and Gonzalo A. Collado, " Morphological, ultrastructural and histochemical investigation of epipodial sensory structures of Haliotis tuberculata (Gastropoda: Haliotidae) ," Acta Zoologica , 2014. (hindawi.com)
  • Second Mémoire sur l'organisation et les rapports des animaux à sang blanc, dans lequel on traite de la structure des Mollusques et de leur division en ordre, lu à la société d'Histoire Naturelle de Paris, le 11 prairial an troisième [30 May 1795]. (marinespecies.org)
  • This article explains the many Gastropoda characteristics. (thoughtco.com)
  • Evaluation of the reproductive profile of Subulina octona (Gastropoda, Subulinidae) experimentally infected by Paratanaisia bragai (Digenea, Eucotylidae). (bvsalud.org)
  • Se determinó alteraciones citológicas como la modificación del epitelio interno, ocurrencia de áreas acelulares, falta de lámina basal y presencia de núcleo picnótico, y superposición de tejido prostático en las tres glándulas femeninas. (scielo.cl)
  • Gastropoda , Genera of Gastropoda , Families of Gastropoda and Orders of Gastropoda . (wikimedia.org)
  • Revision of the Strombina Group (Gastropoda: Columbellidae), Fossil and Living. (uiowa.edu)
  • Do you know what the marine biology term ' Gastropoda' means? (thoughtco.com)
  • The introduction of Physa acuta (Gastropoda: Physidae) on Ilha Grande, Southeast Brazil, from initial stages to an established population. (bvsalud.org)
  • In this part of the series, giving a systematic account of the Gastropoda of the Early Pliocene (Zanclean) deposits of Estepona, province of Málaga, Spain , the Triphoroidea, Epitonioidea and Eulimoidea are described and discussed. (nhbs.com)
  • The images should probably be placed in subcategories of Category:Gastropoda . (wikimedia.org)