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The Branchiobdellida are sister to the leech clade Hirudinida, which approximately corresponds to the traditional subclass Hirudinea. The main subdivision of leeches is into the Rhynchobdellida and the Arhynchobdellida, though the Acanthobdella are sister to the clade that contains these two groups.
The Hirudiniformes are one of the currently-accepted suborders of the proboscisless leeches (Arhynchobdellida).Their best-known member is the European medical leech, Hirudo medicinalis, and indeed most of the blood-sucking "worms" as which leeches are generally perceived belong to this group.
Hirudo medicinalis, or the European medicinal leech, is one of several species of leeches used as medicinal leeches. Other species of Hirudo sometimes also used as medicinal leeches include H. orientalis , H. troctina , and H. verbana .
Macrobdella decora, also known as the North American medicinal leech, is a species of freshwater leech found in much of eastern North America in freshwater habitats, although there is one disjunct population in northern Mexico. M. decora is a parasite of vertebrates, including humans, and an aquatic predator of eggs, larvae, and other ...
Hirudo is a genus of leeches of the family Hirudinidae.It was described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae. [2]The two well-accepted species within the genus are: [3]
Hirudin is a naturally occurring peptide in the salivary glands of blood-sucking leeches (such as Hirudo medicinalis) that has a blood anticoagulant property. [2] This is essential for the leeches' habit of feeding on blood, since it keeps a host's blood flowing after the worm's initial puncture of the skin.
Hirudinaria [1] is a genus of large Asian leeches belonging to the family Cylicobdellidae; [2] previously it was placed in the Hirudinidae. [3] [a] It includes species such as H. manillensis that may be called "Asian medicinal leeches", but together with the genus Poecilobdella, they are also described as Asian buffalo leeches.
Hirudo medicinalis leech. Order Branchiobdellida; Subclass Hirudinea () Infraclass Acanthobdellidea; Infraclass Euhirudinea. Order Arhynchobdellida. Suborder Erpobdelliformes. Family Erpobdellidae Blanchard, 1894