• The phylogenetic tree of the leeches and their annelid relatives is based on molecular analysis (1999) of mitochondrial cytochrome c oxidase . (wikipedia.org)
  • Rhynchobdellida " ( paraphyletic , marked with a red bar on the diagram) are jawless leeches, armed with a muscular, straw-like proboscis puncturing organ in a retractable sheath. (wikipedia.org)
  • Within this order, the Hirudidae are aquatic and the Haemadipsidae are terrestrial and mainly blood-feeders, including Haemadipsa sylvestris , the Indian leech and Haemadipsa zeylanica , the Japanese mountain leech. (wikipedia.org)
  • In modern times, leeches find medical use in microsurgery , while hirudin is a valuable drug for some blood-clotting disorders. (wikipedia.org)