Onobops bispiralis (FOSSIL) Wesselingh, 2006 † Peru, Loreto, Mariscal Ramón Castilla
Onobops bisulcatus (FOSSIL) Wesselingh, 2006 † Peru, Loreto, Maynas
Cochliopina bourguyi (FOSSIL) (Roxo, 1924 †) Colombia, Rio Cotuhe
Tryonia brevissima H.A. Pilsbry, 1890 Florida
Antrobia breweri (R. Hershler& F.G. Thompson, 1990) Alabama, Coosa River
Tryonia brunei D.W. Taylor, 1987 Texas, Reeves County
Littoridina bruninensi W.A. Biese, 1944
Eupaludestrina canariensis (A. Mousson, 1872) Canary Islands, Fuerteventura2,8 mm
Paludiscala caramba D.W. Taylor, 1966 Mexico, Saltillo
Heleobia carcotensis Collado, Valladares& Méndez, 2016
Sioliella carinata (FOSSIL) Wesselingh, 2006 † Peru, Loreto, Maynas
Toxosoma carinatum (FOSSIL) Wesselingh, 2006 † Peru, Loreto, Maynas
Dyris carinatus (FOSSIL) Wesselingh, 2006 † Peru, Loreto, Maynas
Mexipyrgus carranzae D.W. Taylor, 1966 Mexico, Saltillo
Heleobops carrikeri D.H.S. Davis & M. McKee,1989 USA, Maryland
Heleobia castellanosae J.M. Gaillard, 1974 Argentina, Buenos Aires3 mm
Aroapyrgus chagresensis J.P.E. Morrison, 1946 Panama
Aphaostracon chalarogyrus F.G. Thompson, 1968 Florida
Heleobia charruana (A.V.M.D. D'Orbigny,1843) Uruguay
Tryonia cheatumi H.A. Pilsbry, 1935 USA, Texas, Reeves County
Aroapyrgus chefinesnoel E. Rolán, 2010 Guatemala1,6 mm
Littoridina chimbaensis W.A. Biese, 1944 Chile, Antofagasta
Littoridina choapaensis W.A. Biese, 1944 Chile, Zapallar
Tryonia chuviscarae R. Hershler, H.P. Liu& J.J. Landye, 2011 Mexico, Chihuahua
Tryonia cingulifera (A. Adams, 1860) Japan
Tryonia circumstriata A.B. Leonard & T.H. Ho,1960 Texas, Pecos County
Aroapyrgus cisterninus (B. Walker, 1919) Guatemala
Pyrgophorus cisterninus (H.C. Küster, 1852)
Tryonia clathrata W. Stimpson, 1865
Aroapyrgus clenchi (C. Goodrich& H. Van Der Schalie, 1937) Guatemala
Juturnia coahuilae (D.W. Taylor, 1966) Mexico, Saltillo
Subcochliopa colabrensis J.P.E. Morrison, 1946 Panama
Cochliopina colombiana (FOSSIL) Nuttall, 1990 † Colombia, La Tagua
Aroapyrgus colombiensis J. Malek & C. Little,1971 Colombia
Onobops communis (FOSSIL) Wesselingh, 2006 † Colombia, Rio Cotuhe