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Leech anatomy in cross-section: the body is solid, the coelom (body cavity) reduced to channels, with circular, longitudinal, and transverse muscles making the animal strong and flexible. [ 26 ] Like most annelids, with a few exceptions like Sipuncula , Echiura and Diurodrilus , [ 27 ] the leech is a segmented animal, but unlike other annelids ...
English: Leech in cross-section. Whereas other annelids are largely hollow, with a spacious coelom, leeches are largely solid, filled with dermis, and the coelom reduced to channels. Whereas other annelids are largely hollow, with a spacious coelom, leeches are largely solid, filled with dermis, and the coelom reduced to channels.
During a blood meal, a leech rhythmically contracts its muscles to draw blood from a host animal into the crop for storage. It can consume over five times its own weight in blood in one feeding. Once satiated, a leech detaches from its host. Hirudo verbana uses anticoagulants when it feeds, so its bite wounds continue bleeding for some time ...
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]
Well-known Haemadipsidae are for example the Indian Leech (Haemadipsa sylvestris) and the yamabiru or Japanese Mountain Leech (Haemadipsa zeylanica). Members of the family feed on blood, except Idiobdella which has adapted to eat small snails. [1] The other notable group of jawed blood-sucking leeches are the aquatic Hirudinidae.
Haemopis sanguisuga is a freshwater leech and is found across most of Europe [1] [4] as well as in Asia. [6] Typical habitats are in shallow parts of lakes, ponds, ditches and slow-moving rivers. It may emerge onto the land, hiding under stones, and it tolerates slightly brackish water. [4] It can be found as far as 30 metres away from water.
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