Achatinella casta W. Newcomb, 1854
Auriculella castanea (L. Pfeiffer, 1853)
Auriculella cerea L. Pfeiffer, 1855
Elasmias cernicum (W.H. Benson, 1850)
Auriculella chamissoi L. Pfeiffer, 1855
Tornatellaria cincta (C.M.F. Ancey, 1903)
Newcombia cinnamomea (L. Pfeiffer, 1857)
Tornatellides clarionensis W.H. Dall, 1926
Tornatellides comes H.A. Pilsbry & C.M. Cooke,1915
Tornatellides compactus (E.R. Sykes, 1900)
Achatinella concavospira L. Pfeiffer, 1859
Achatinella concavospira griseizona H.A. Pilsbry & C.M. Cooke,1914
Achatinella concavospira turbiniformis (J.T. Gulick, 1873)
Tornatellinops concolorans C.M. Cooke & Y. Kondo,1960
Partulina confusa E.R. Sykes, 1900
Tornatellina conica (H.E. Anton, 1839)
Fernandezia conifera (L.A. Reeve, 1849)
Nesonoica conoides C.M. Cooke & Y. Kondo,1960
Fernandezia consimilis (L.A. Reeve, 1849)
Tornatellaria convexior H.A. Pilsbry & C.M. Cooke,1916
Maitua costata C.M. Cooke & Y. Kondo,1960
Partulina crassa (W. Newcomb, 1853)
Auriculella crassula E.A. Smith, 1873
Tubuaia cremnobates C.M. Cooke & Y. Kondo,1960
Partulina crocea J.T. Gulick, 1856
Newcombia cumingi (W. Newcomb, 1853)
Achatinella curta W. Newcomb, 1853
Tubuaia cylindrata C.M. Cooke & Y. Kondo,1960
Tubuaia cylindrata philolichen C.M. Cooke & Y. Kondo,1960
Fernandezia cylindrella N.H. Odhner, 1921
Lamellidea cylindrica (E.R. Sykes, 1900)
Tornatellides cyphostyla (C.M.F. Ancey, 1904)
Taitaa dacryma C.M. Cooke & Y. Kondo,1960
Achatinella decipiens W. Newcomb, 1854
Achatinella decipiens kaliuwaaensis H.A. Pilsbry & C.M. Cooke,1913