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 Saveljevia Filipjev, 1927 The genus Saveljevia was designated by Filipjev (1927) who originally described four species: Saveljevia kolaensis Filipjev, 1927 , Saveljevia curvidens Filipjev, 1927 , Saveljevia xiphonchus Filipjev, 1927 and Saveljevia clavicauda Filipjev, 1927 . In this genus, the head is built quite differently from species to species, but showing some resemblance, especially with the dorsal tooth always much shorter. Later, Saveljevia hastata Wieser, 1953 was described and the author suggested that Enoplolaimus spissignathus Allgén, 1940b is synonym of S. curvidens and classified S. clavicauda as Parasaveljevia clavicauda . Subsequently, Saveljvia cornuta Gerlach, 1956c was described. The entire genus is composed of females and juveniles. SPECIES INQUIRENDAE 1. Saveljevia cornuta Gerlach, 1956c ( Germany , Kiel Bay) 2. Saveljevia curvidens Filipjev, 1927 (Russian, Barents Sea) 3. Saveljevia hastata Wieser, 1953 ( Chile , Bahia Chincui) 4. Saveljevia kolaensis Filipjev, 1927 (Russian, Barents Sea) 5. Saveljevia spissignatha ( Allgén, 1940b ) Wieser, 1953 ( Norway ) Syn. Enoplolaimus spissignathus Allgén, 1940b 6. Saveljevia xiphonchus Filipjev, 1927 (Russian, Barents Sea)