ii8 



INDEX TO GENERA AND SUBGENERA OF MOLI.USCA. 



Ch'.nopus^ see Aporrhais. 

 Chevallieria, 32, 115. 

 Chionella, 6. 

 Chiton, 20, 64. 

 Chlamys, 18, 63. 

 Cincinna, 30. 

 Cinctella, 39. 

 Cioniscus, see Acli;. 

 Circe, 7. 

 Circuloscala, 26. 

 Cirsochilus, 23. 

 Cirsope, 34. 

 Cirsotrema, 26. 

 Clanculus, 22. 

 Clausilia, 57. 

 Clavagella, i. 

 Clavella, see Claviliihes. 

 Clavilithes, 46. 

 Clementia, 7. 



Cieodora, see Euchilotheca. 

 Closia, 49, 

 Cnisma, 15. 

 Coeliaxis, 57. 

 Colina, 39. 

 Collonia, 23, 114. 

 Columbella, 44, 66. 

 Columbellisipho, 45. 

 Colubraria, 43, 112. 

 Columna, 57. 

 Cominella, 44, 66. 

 Coniscala, 25. 

 Conomitra, 47. 

 Conorbis, 50. 

 Conus, 50, 67, 

 Conns, see Conorbis, 

 Coptochetus, 45. 

 Coptostj'lus, 34. 

 Coralliophaga. 8. 

 Corbicula, 7, 62, 1 12. 

 Corbis, 10. 

 Corbula, 2, 61, 114. 

 Corbulomya, 2, 61. 

 Cossmannia, 32, in. 

 Craspedopoma 30. 

 Cra-satella, 13, 63, 1 14. 

 Crassiscala, 27. 

 Crassispira, 52. 

 Crenella, 17, 63. 

 Crenilabium, 53. 

 Crepidula, 30. 

 Creseis, see Euchilotheca. 

 Crisposcala, 26. 

 Crommium, 29 

 Crucihuliini, see Mitrularia. 

 Cryptochorda, 47. 

 Cryptoconus, 50 

 Cryptudon, see Axinus. 

 Cryptospira, 48. 

 Cucullsea, 16. 

 Cucullaria, 16. 



Cultellus, I. 



Ctdtelhts, see Ensiculus. 



Cuneocoibula, 3. 



Cuspidaria, 3, 61. 



Cvclas, see Divaricella, Sphaerium. 



Cyclomolops, 42. 



Cyclopkorus, see Leptopoma. 



Cyclostoma, see Dissostoma, Euchilus, 

 Hartmannia, Pomatias. 



Cyclostrema, 21. 



Cyclotellina, 4. 



Cylichna. see Bullinella. 



Cylindrella, see Distaectria. 



Cymenorytis, 29. 



Cyniscella, 23. 



Cyprasa, 42, 66. 



Cyprsedia, 42. 



Cypricardia, see Anisocardia, Coralli- 

 ophaga. 



Cyprina, see Arctica. 



Cyrbasia, 39, 112. 



Cyrena, 7. 



Cyrena, see Corbicula, 



Cyrtochetus, 45. 



Cytherea, see Meretrix, Sunetta. 



Danilia, 22, in. 



Delphinula, 22, 64. 



Delphinula, see Boutillieria, Collonia, 



Gibbula. 

 Dentalium, 20, 64. 

 Dentilucina, 11, 63. 

 Dentiscala, 27. 

 Deshayesia, 64. 

 Dialopsis, 32. 

 Dialytostoma, 29. 

 Diameza, 42. 

 Diaphana, 54. 

 Diastictns, see Cossmannia. 

 Diastema, 38, 66. 

 Dieretostoma, 31. 

 Dimorphopt^'chia, 24. 

 Diplodonta, 10. 

 Diplodonta, see Mysia. 

 Diptychus, 25. 

 Dischides, 20. 

 Discobasis, 25. 

 Discohelix, 33. 

 Discors, 9. 

 Disculus, 33. 

 Dissochilus, 34. 

 Dissostoma, 30, ill. 

 Distaectria, 57, 114. 

 £)waricardi!ii)i, see Discors. 

 Divaricella, 12, 63, 112. 

 Divarikellya, see Divarikellyia. 

 Divarikellyia, 13. 

 Dolichotoma, see Bath3'toma. 

 DoUfusia, 7. 

 Donacopsis, 7. 



