Cochliopina compacta (H.A. Pilsbry, 1910) Mexico, San Luis Potosì
Littoridina compacta W.A. Biese, 1944
Aroapyrgus conchensensis (B. Walker, 1919) Guatemala
Heleobia conexa (J.M. Gaillard, 1974) Argentina, Buenos Aires
Littoridina conica (FOSSIL) Wesselingh, 2006 † Peru
Tropidebora conica (FOSSIL) Wesselingh, 2006 † Peru
Pyrgophorus conoideus (C.M.F. Ancey, 1888) Nicaragua
Semisalsa contempta (P. Dautzenberg, 1894) Turkey
Toxosoma contortum (FOSSIL) Wesselingh, 2006 † Colombia, Rio Cotuhe
Tryonia contrerasi R. Hershler, H.P. Liu& J.J. Landye, 2011 Mexico, Chihuahua
Cochliopina convexa (FOSSIL) Wesselingh, 2006 † Peru, Loreto, Maynas
Littoridina copiapoensis W.A. Biese, 1944 Chile, Rio Copiapo
Littoridina coquimbensis W.A. Biese, 1944
Pyrgophorus coronatus (L. Pfeiffer, 1840) Belize3,8 mm
Aroapyrgus costaricensis (O.A.L. Mörch, 1860) Costa Rica
Thalassobia coutagnei (J.R. Bourguignat in G. Coutagne, 1881)
Littoridina crassa (FOSSIL) Etheridge, 1879 † Peru, Loreto, Maynas
Sioliella crassilabra (FOSSIL) (T.A. Conrad, 1871 †) Peru, Loreto, Mariscal Ramón Castilla
Chorrobius crassilabrum R. Hershler, H.P. Liu& J.J. Landye, 2011 Chihuahua, Mexico
Onobops crassus (F.G. Thompson, 1968) Florida
Limnothauma crawfordi F. Haas, 1955 Bolivia, Lake Titicaca
Littoridina crosseana (H.A. Pilsbry, 1910) Mexico, Tampico
Antrobia culveri L.R. Hubricht, 1971 Missouri
Littoridina cumingii (A.V.M.D. D'Orbigny,1895)
Longosoma curtum (FOSSIL) (T.A. Conrad, 1874 †) Peru, Loreto, Mariscal Ramón Castilla
Heleobia cuzcoensis (H.A. Pilsbry, 1911) Peru, Cuzco4 mm
Littoridina davisi (G.F. Silva& J.W. Thomé, 1985) Brazil, Rio Grande do Sul
Toxosoma denticulatum (FOSSIL) Wesselingh, 2006 † Peru, Loreto, Maynas
Dyris denticulatus (FOSSIL) Wesselingh, 2006 † Colombia, La Tagua
Heleobia deserticola G. Collado, 2015 Chile, Atacama4,4 mm
Tryonia diaboli H.A. Pilsbry& J.H. Ferriss, 1906 USA, Texas
Cochliopa diazensis J.P.E. Morrison, 1946 Panama
Eupaludestrina dobrogica (A.V. Grossu& A. Negrea, 1989) Romania
Heleobops docimus (F.G. Thompson, 1968) Bahamas
Tryonia dorialis (A. Adams, 1863) Japan