- 2012 †Campylacrum
Finlay & Marwick, 1937 †Clinuropsis Vincent, 1913 †
Cosmasyrinx Marwick, 1931
Cryptomella Finlay, 1924
Echinoturris Powell, 1935 Eoscobinella...
- †Coronia †Coroniopsis †Coroniscala †Coronopsis †Corsania †Cortinella †
Cosmasyrinx †Cosmetalepas †Cosmocerithium †Cosmolithes †Cosmophiline †Cossmannea...
