The genus Filipjevia was described by Kreis (1928) with the original description of Filipjevia macrolabiatus Kreis, 1928. This species is characterized by having two large bean-shaped cells on each side at the end of the intestine, but the function of this structure is still unknown. Another three species may appear in the literature (Filipjevia mediterranea Schuurmans Stekhoven, 1950, Filipjevia meridionalis Kreis, 1932 and Filipjevia parameridionalis Vitiello, 1970) as belonging to this genus due to the mispelled genus name. However, these species belong to the genus Filipjeva Ditlevsen (1928), family Xyalidae, class Chromadorea.
Diagnosis from Smol et al. (2014): Lips high, all anterior sensilla setose. Mandibles solid with posterior apophyses and with teeth. Dorsal tooth reduced. Two large ventrosublateral teeth not surpassing the mandibles. Marine.
Number of valid species: 1
1. Filipjevia macrolabiatus Kreis, 1928 (Russia, Barents Sea)— type species