Hexamastix are small (10-30 µm) trichomonad flagellates with five grouped anteriorly directed flagella and a recurrent non-adhering flagellum. Axostyle well developed and parabasal V-shaped. Among the 11 species described, several live in Invertebrates such as H. claviger in termites (Kirby, 1930) and in vertebrates such as H. caviae in rodents (Nie, 1950). Hexamastix claviger from Kalotermes flavicollis (phase contrast). Hexamastix caviae from Arvicola terrestris (phase contrast).
