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Linognathidae (order Phthiraptera, suborder Anoplura) Family of sucking lice which are parasitic on members of the mammalian orders Artiodactyla, Perissodactyla, Carnivora, and Hyracoidea. Like Haematopinidae, these lice lack eyes, but they also lack the prominent ocular points characteristic of the other family. The family comprises 69 species in three genera, of which one, Prolinognathus, is sometimes placed in its own family. This genus contains all the species of Anoplura parasitic on hyraxes, other lice found on hyraxes belonging to the Ischnocera (family Trichodectidae).

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