Baker, 1935* "Protancylus" P. & F. Sarasin, 1897* "Pygmanisus" Iredale, 1943* "Segmentorbis" Mandahl-Barth, 1954* "Sineancylus" Gutiérrez Gregoric, 2014* "Syrioplanorbis" F.C.
Baker, 1935* "Protancylus" P. & F. Sarasin, 1897* "Pygmanisus" Iredale, 1943* "Segmentina" Fleming, 1817* "Segmentorbis" Mandahl-Barth, 1954* "Syrioplanorbis" F.C.