Arenotrocha minuta (Lévi, 1954)
Dorvillea kastjani Tsetlin, 1980
Dorvillea roemeri (Augener, 1912)
Dorvillea rubrovittata (Grube, 1855)
Ophryotrocha irinae Tsetlin, 1980
Ophryotrocha minuta Lévi, 1954 accepted as Arenotrocha minuta (Lévi, 1954)
Ophryotrocha puerilis Claparède & Mecznikow, 1869
Ophryotrocha puerilis siberti (McIntosh, 1885) accepted as Ophryotrocha siberti (McIntosh, 1885)
Ophryotrocha scarlatoi Averincev, 1989
Ophryotrocha siberti (McIntosh, 1885)
Parophryotrocha pueriliformis Averincev, 1989
Parougia caeca (Webster & Benedict, 1884)
Protodorvillea kefersteini (McIntosh, 1869)
Schistomeringos caeca (Webster & Benedict, 1884) accepted as Parougia caeca (Webster & Benedict, 1884)