Haemadipsidae

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Haemadipsidae (From Greek "haima" and "dipsa" ("blood" and "thirst", respectively)) are a family of jawed leeches. They are a monophyletic group of hirudiniform proboscisless leeches. These leeches have five pairs of eyes, with the last two separated by two eyeless segments. The family is monotypic, containing only the subfamily Haemadipsinae. However, the family can apparently be divided into two or three distinct lineages. At least one of the proposed splits, while not a distinct family, might be a valid subfamily.