Taxonomic review of Thoracostomopsidae (Nematoda, Enoplida): state of the art, list of valid species and dichotomous keys Author De Souza, João V. 0009-0009-4985-086X https: // orcid. org / 0009 - 0009 - 4985 - 086 X Author Maria, Tatiana F. 0000-0002-7553-2031 https: // orcid. org / 0000 - 0002 - 7553 - 2031 text Zootaxa 2023 2023-11-03 5361 4 463 496 https://www.mapress.com/zt/article/download/zootaxa.5361.4.2/52207 journal article 10.11646/zootaxa.5361.4.2 1175-5326 10152589 DAB237DC-1444-4007-BCCA-CB92CBE66617 Genus Filipjevia Kreis, 1928 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