1863  Cyrtoclymeniae Gümbel: 32.
     1884  Cyrtoclymenia Hyatt: 313.
     1902  Clymenia.-Frech: 29.
     1908  Protactoclymenia Wedekind: 605.
     1914  Protactoclymenia.- Wedekind: 16.
        ----  Cyrtoclymenia.- Wedekind: 16, 25.
     1923  Cyrtoclymenia.- Schindewolf: 421.
     1924  Lenticlymenia Schmidt: 126.
     ----  Cyrtoclymenia.- Schmidt: 126.
     1931  Cyrtoclymenia.- Matern: 96.
     1947  Cyrtoclymenia.- Nalivinka: 175.
     1949  Cyrtoclymenia.- Schindewolf: 72.
     1957  Cyrtoclymenia.- Treatise: L44.
     1960  Cyrtoclymenia.- Petter: 39.
     1960  Cyrtoclymenia.- Ruzhentsev: 243.
     1962  Cyrtoclymenia.- Osnovy: 406.
     1996  Cyrtoclymenia.-Becker: 32.
     2002  Cyrtoclymenia.-Korn & Klug: 214.
     2005  Cyrtoclymenia.-Nikolaeva & Bogoslovskii: 89.
  
Type species: Clymenia angustiseptata Münster, 1843, p.6 [OD].

A    Conch form discoidal to lenticular; flanks convex; umbilicus moderately wide or narrow.
B    Usually fine growth lines; course biconvex with weak ventrolateral salient and deep external sinus.
C    Usually without ribs; some species with 20 to 30 simple and short ribs around the umbilicus.
D    Usually no constrictions.
G    No ventral lobe; lateral lobe symmetric, shallowly rounded.

Figure see TAX4149A, A.