Most nematode species are dioecious, with separate male and female individuals, though some, such as Caenorhabditis elegans, are androdioecious, consisting of hermaphrodites and rare males. Both sexes possess one or two tubular gonads. In males, the sperm are produced at the end of the gonad and migrate along its length as they mature. The testis opens into a relatively wide seminal vesicle and then during intercourse into a glandular and muscular ejaculatory duct associated with the vas deferens and cloaca. In females, the ovaries each open into an oviduct (in hermaphrodites, the eggs enter a spermatheca first) and then a glandular uterus. The uteri both open into a common vulva/vagina, usually located in the middle of the morphologically ventral surface.[39] Reproduction is usually sexual, though hermaphrodites are capable of self-fertilization. Males are usually smaller than females or hermaphrodites (often much smaller) and often have a characteristically bent or fan-shaped tail. During ...
These all belong in the superfamily Ascaridoidea. Tree of Life Web Project (ToL) (2002): Nematoda. Version of 2002-JAN-01. ...
Nematoda: Ascaridoidea) from the domestic cat (Felis catus Linnaeus, 1758)". Journal of Parasitology. 87 (3): 660-665. doi: ...
Ascaridoidea, Anisakidae) in three whale species from the North-East Atlantic". Parasitology Research. 92 (6): 484-489. doi: ...
Rossin, María; Datri, Luciana; Incorvaia, Inés; Timi, Juan (1 January 2011). "A new species of Hysterothylacium (Ascaridoidea, ...
Ascaridoidea, Anisakidae) in view of experimental infections". Parasitology Research. 81 (6): 481-9. doi:10.1007/BF00931790. ...
These "worms" contain a number of important parasites of humans and domestic animals, namely in the superfamily Ascaridoidea. ...
Ascaridoidea". Wiad Parazytol. 47 (3): 263-268. PMID 16894732. Nadler SA, Carreno RA, Mejia-Madrid H, Ullberg J, Pagan C, ...
Ascaridoidea: Ascaridae) from the White-lipped Island Pitviper, Trimeresurus insularis (Ophidia: Viperidae), from Wetar Island ...
... ascaridoidea) after emerging from the egg". Journal of Parasitology. 86 (3): 421-427. doi:10.1645/0022-3395(2000)086[0421: ...
... ascaridoidea MeSH B01.500.500.294.700.100.100.075 - anisakis MeSH B01.500.500.294.700.100.100.082 - ascaridia MeSH B01.500. ...
1912 Suborder Spirurina Infraorder Ascaridomorpha Superfamily Ascaridoidea Baird, 1853 Acanthocheilidae Wülker, 1929 Anisakidae ...
Diplogasteroididae Rhabditomorpha Mesorhabditoidea Peloderidae Rhabditoidea Rhabditidae Spirurina Ascaridomorpha Ascaridoidea ...