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Haemadipsa zeylanica, a terrestrial leech Placobdelloides siamensis, a parasite of turtles in Thailand.The ventral face (right) shows many young leeches. [3]Some 680 species of leech have been described, of which around 100 are marine, 480 freshwater and the remainder terrestrial.
Commonly known as jawed land leeches, these annelids are known from subtropical and tropical regions around the Indian and Pacific Ocean. [1] Well-known Haemadipsidae are for example the Indian Leech ( Haemadipsa sylvestris ) and the yamabiru or Japanese Mountain Leech ( Haemadipsa zeylanica ).
The price of leeches varied between one penny and threepence halfpenny each. In 1832 leeches accounted for 4.4% of the total hospital expenditure. The hospital maintained an aquarium for leeches until the 1930s. [15] The use of leeches began to become less widespread towards the end of the 19th century. [5]
The Kinabalu giant red leech (Mimobdella buettikoferi) is a large bright orange-red coloured leech that is endemic to Mount Kinabalu, Borneo. It can grow to a length of over 50 cm (20 in). It can grow to a length of over 50 cm (20 in).
Haementeria ghilianii is a species of leech in the Glossiphoniidae family, comprising freshwater proboscis-bearing leeches. Colloquially, they are known as the Amazon giant leech. Following its initial description in 1849, additional details were provided based on specimens from French Guiana in 1899, after which the species was largely ...
Helobdella is a genus of leeches in the family Glossiphoniidae, the freshwater jawless leeches. They occur worldwide. [1] These are small, flat leeches which do not feed on blood. [2] Several species in this genus are used as model organisms in the study of developmental biology. [1] It has been difficult to define species in this genus without ...
Hirudinea, whose name means "leech-shaped" and whose best known members are leeches. [8] Marine species are mostly blood-sucking parasites, mainly on fish, while most freshwater species are predators. [13] They have suckers at both ends of their bodies, and use these to move rather like inchworms. [15]
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] Hirudo medicinalis Linnaeus, 1758; Hirudo nipponia Whitman, 1886