REFERENCE TO PLATES. 425 



FIGURE. PAGE. 



7. Volvatella cumingi Ad. Thes., 385 



8. Hamiuea diaphana Couth. U. S. Exped., . . . 356 

 ( .. 10. Cylindrobulla sowerbiei Montr. J. de C., . . .381 



11. Volvutella Candida Pse. A. J. C., . '. . . .385 



12. Cylichna domitus Dall. Blake Rep., . . . .294 

 12*/. Atys caribsea Orb. Specimen, 274 



13. Cylichna dalli Verrill. Tr. Conn. Acad., . . .297 



14. Cylichna strigella A. Ad. Thes., ..... 314 

 15-17. Bulla nebulosa, gizzard-plate. Pilsbry, del., . . 328 



18. Haminea succinea Conr. Specimen, .... 357 



19, 20. Bulla roperiana Pils. Specimen, .... 336 



21. Bulla adansoni Phil. Specimen, 334 



PLATE 49. 



1, 2. Actseon tornatilis L. Moll. Reg. Arct., . . .148 



3. ActsBon tornatilis L., 148 



4. Actseon luteofasciata Mu'hlf. Berl. Verh., . . .155 



5. 6. Actseonina chariis Wats. Chall. Rep., . . . .174 

 7. Leucotina niphonensis Ad. C. Icon., .... 168 

 8,9. Leucotina modesta Ad. C. Icon., .... 170 

 10, 11. Actseon bullatus Old. Expl. Exped., . . .163 

 12, 13. Actseonina edentula Wats. Chall. Rep., . . .173 

 14-16. Leucotina sinuata Ang. P. Z. S., . . . .171 

 17, 18. Solidula solidula L. Gen. Rec. Moll., . . .142 



19. Leucotina esther Ang. P. Z. S., 170 



20, 21. Ovulactseon meekii Dall. Blake Rep., . . .178 



22, 23. Leucotina elongata So wb. Sh. S. Af., . . .172 



24. Actseon punctocrelatus Cpr. Specimen,. . . .166 



PLATE 50. 



25, 26. Tornatina canaliculata Say. Pilsbry, del., . .184 

 27-29. Tornatina candei Orb. Pilsbry, del., . . .185 

 30. Tornatina bullata Kn. Pilsbry, del., . . . .183 



-34. Tornatina singaporensis Pils. Pilsbry, del., . .194 



35-37. Tornatina capitata Pils. Pilsbry del., . . .195 



38. Tornatina culcitella Old. Pilsbry del., . . . .189 



39, 40. Tornatina cerealis Old. Pilsbry del., . . .188 



NOTE. The numbers 51 to 58 are omitted from the series of plates, PI. 50 

 being followed by PI. 59. 



PLATE 59. 



1,2. Atys Jeffreys! Weink. Ann. Mag., . . . .277 

 >. Atys brocchii Mich. Conch, foss. subap., . . . 277 

 4, 5 Cylichua parvula Jeffr. Ann. Mag., .... 293 



6. Cylichna sarsii Ad. Thes., 322 



