Platydemus is a genus of large predatory land planarians in the tribe Rhynchodemini.
Description Species of the genus Platydemus are characterized by a massive, slightly convex body with a broad creeping sole and very large eyes. The copulatory apparatus has a large chamber with folded epithelium in the male atrium, usually with a small penis.
Species The genus Platydemus includes the following species: Platydemus bivittatus von Graff, 1899 Platydemus fasciatus (Spencer, 1892) Platydemus grandis (Spencer, 1892) Platydemus joliveti de Beauchamp, 1972 Platydemus lividus von Graff, 1899 Platydemus longibulbus de Beauchamp, 1972 Platydemus macrophthalmus von Graff, 1899 Platydemus manokwari de Beauchamp, 1963 – "New Guinea flatworm" Platydemus pindaudei de Beauchamp, 1972 Platydemus tabatteldii Graff, 1899 Platydemus vanheurni de Beauchamp, 1929 Platydemus victoriae (Dendy, 1890) Platydemus zimmermanni de Beauchamp, 1952
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