296 REFERENCE TO PLATES, VOL. XlV. 



FIGURE PAGE 



PLATE 34. 



1, 2. Cerion calcareum Pfr. Conch. Cab., . . . . 234 

 3, 4. Cerion sarcostoraum P. & V. Specimens, . . . 234 

 5-10. Cerion columna and var. validum P. &. V. Speci- 

 mens, 235, 236 



11. Cerion regina eucosmium P. & V. Specimens, . . 233 



12. Cerion regina percostatum P. & V. Specimens, . . 232 



13. 14. Cerion regina swiftii P & V. Specimens, . . . 232 



15. Cerion regina brevispira P. & V. Specimens, . . . 233 



16. Cerion regina comes P. & V. Specimens, . . . 232 



PLATE 35. 



17-21. Cerion regium Bens. Specimens, .... 236 

 22, 23. Cerion regium Bens. After Kiister, .... 236 



24. Cerion regium Bens, (mumia Sowb.). Gen. of Shells, . 237 



25, 26. Cerion incanoides P. & V. Specimens, . . .233 

 27-30. Cerion regina P. & V. Specimens, . . . .231 



PLATE 36. 



31. Cerion gubernatorium Crosse. J. de Conch., . . . 242 



32-34. Cerion gubernatorium Crosse. Specimens, . . 242 



35-38. Cerion eleutherae P. & V. Specimens, . . .240 



39-40. Cerion agassizi Dall. Bull. M. C. Zool., . . .242 



41-42. Cerion pillsburyi P. & V. Specimens, . . .244 



43. Cerion niteloides Dall. Bull. Lab. I. S. Univ., . . 244 



44. Cerion milleri Pfr. Specimen, ..... 243 

 45-49. Cerion milleri Pfr. Novit. Conch., . . . .243 



PLATE 37. 



50, 51. Cerion nudum Mayn. Contrib. to Sci., . . 238 



52, 53. Cerion inflatum Mayn. Contrib. to Sci., . . . 239 



54, 55. Cerion weinlandi Kurr. Novit. Conch., . . . 237 



56, 57. Cerion weinlandi Kurr. Specimens, .... 237 



58, 59. Cerion abacoense P. & V. Specimens, . . 246 



60, 61. Cerion lentiginosum Mayn. Specimen, . . . 248 



62, 63. Cerion album brownei Mayn. Contrib. to Sci., . . 248 



64, 65. Cerion maynardi P. & V. Specimens, . . . 246 



66. Cerion album Mayn. Specimens, ..... 247 



PLATE 38. 



67, 68. Cerion fordii P. & V. Specimens 270 



69, 70. Cerion fordii submarmoratum P. & V. Specimens, . 270 

 71, 72. Cerion fordii P. & V, Specimens, . . . .270 



