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Leech saliva is commonly believed to contain anaesthetic compounds to numb the bite area, but some authorities disagree. [52] [53] [54] ...
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Niemeier lattices are usually labelled by the Dynkin diagram of their root lattice.Each Niemeier lattice can be constructed from its root lattice (except for the Leech lattice which has no roots) by adjoining elements known as glue vectors, as detailed in §16.1 of Conway & Sloane (1998).
The annelids (/ ˈ æ n ə l ɪ d z /), also known as the segmented worms, are animals that comprise the phylum Annelida (/ ə ˈ n ɛ l ɪ d ə /; from Latin anellus 'little ring'). [3] [a] The phylum contains over 22,000 extant species, including ragworms, earthworms, and leeches.
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 .
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.
Glossiphoniidae are a family of freshwater proboscis-bearing leeches.These leeches are generally flattened, and have a poorly defined anterior sucker.Most suck the blood of freshwater vertebrates like amphibians, crocodilians and aquatic turtles, but some feed on invertebrates like oligochaetes and freshwater snails instead.