Achatinella casta W. Newcomb, 1854 Hawaii21 mm
Auriculella castanea (L. Pfeiffer, 1853) Hawaii
Auriculella cerea L. Pfeiffer, 1855 Hawaii
Elasmias cernicum (W.H. Benson, 1850) Mauritius
Auriculella chamissoi L. Pfeiffer, 1855 Hawaii
Tornatellaria cincta (C.M.F. Ancey, 1903) Hawaii
Newcombia cinnamomea (L. Pfeiffer, 1857) Hawaii, Molokai
Tornatellides clarionensis W.H. Dall, 1926 Mexico, Clarion Island
Tornatellides comes H.A. Pilsbry& C.M. Cooke, 1915 Hawaii
Tornatellides compactus (E.R. Sykes, 1900) Hawaii
Achatinella concavospira L. Pfeiffer, 1859 Hawaii18,6 mm
Achatinella concavospira griseizona H.A. Pilsbry& C.M. Cooke, 1914 Hawaii20,9 mm
Achatinella concavospira turbiniformis (J.T. Gulick, 1873) Hawaii18 mm
Tornatellinops concolorans C.M. Cooke & Y. Kondo,1960 French Polynesia, Rapa Iti Island
Partulina confusa E.R. Sykes, 1900 Hawaii23,5 mm
Tornatellina conica (H.E. Anton, 1839) Chile, Valparaiso
Fernandezia conifera (L.A. Reeve, 1849) Chile, Juan Fernandez Island
Nesonoica conoides C.M. Cooke & Y. Kondo,1960 French Polynesia, Rapa Iti Island
Fernandezia consimilis (L.A. Reeve, 1849) Chile, Juan Fernandez Island
Tornatellaria convexior H.A. Pilsbry& C.M. Cooke, 1916 Hawaii
Maitua costata C.M. Cooke & Y. Kondo,1960 French Polynesia, Rapa Iti Island
Partulina crassa (W. Newcomb, 1853) Hawaii
Auriculella crassula E.A. Smith, 1873 Hawaii
Tubuaia cremnobates C.M. Cooke & Y. Kondo,1960 French Polynesia, Rapa Iti Island
Partulina crocea J.T. Gulick, 1856 Hawaii
Newcombia cumingi (W. Newcomb, 1853) Hawaii19,7 mm
Achatinella curta W. Newcomb, 1853 Hawaii, Oahu
Tubuaia cylindrata C.M. Cooke & Y. Kondo,1960 French Polynesia, Rapa Iti Island
Tubuaia cylindrata philolichen C.M. Cooke & Y. Kondo,1960 French Polynesia, Rapa Iti Island
Fernandezia cylindrella N.H. Odhner, 1921 Chile, Robinson Crusoe Island
Lamellidea cylindrica (E.R. Sykes, 1900) Hawaii, Oahu
Tornatellides cyphostyla (C.M.F. Ancey, 1904) Hawaii
Taitaa dacryma C.M. Cooke & Y. Kondo,1960 French Polinesia, Tubuai
Achatinella decipiens W. Newcomb, 1854 Hawaii14 mm
Achatinella decipiens kaliuwaaensis H.A. Pilsbry& C.M. Cooke, 1913 Hawaii17,9 mm