RFFERENCE TO PLATES, VOL. XIV. 295 



FIGURE PAGE 



84-88. Cerion politum Mayn. Specimens, .... 217 

 89-91. Cerion politum maisianum Pils. Specimens, . . 218 



PLATE 31. 



92, 93. Cerion infandum Shutt. Mai. Bl., ..... 225 



94. Cerion infandum Shutt. Specimen, .... 225 



95, 96. Cerion mumia Brug. Specimen, .... .225 



97. Cerion mumia Brug. (media Mayn.). Contrib. to Sci., . 226 



98, 99, 1-4. Cerion mumia var. chrysalis. Specimens, . . 226 



5. Cerion mumia var. chrysalis Fer. Fer., Hist. . . . 226 



6, 7. Cerion mumia var. (oblfterata Mayn.). Contrib. to Sci., 228 



8. Cerion mumia var. (scripta Mayn.). Contrib. to Sci., . 228 



9. Cerion mumia var. (eurystoma Mayn.). Contrib. to Sci., . 228 

 10-12. Cerion mumia var. fastigatum Mayn, Specimens, . 228 



PLATE 32. 



13, 14. Cerion cyclostomum Kiist. After Ktister, . . .196 

 15-18. Cerion cyclostomum var. kusteri Pfr. After Kiister, . 197 



19. Cerion cyclostomum Kiist. Specimen, . . . .196 



20. Cerion pineria Dall. Specimen, . . . . .198 



21. 22. Cerion cumingianum var. paredonis Pils. Specimen, . 199 

 23, 24. Cerion longidens Pils. Specimen, .... 212 



25. Cerion cumingianum Pfr. Conch. Cab.,.. . . .198 



26. Cerion tenuilabre Kiist. Specimen, .... 200 

 27-29. Cerion tenuilabre pygmseum P. & V. Specimen, . 201 



30, 31. Cerion microstomum Pfr. Mai. Bl 199 



32-35. Cerion gundlachi Pfr. Mai. Bl., . . . .200 

 36, 37. Cerion crassiusculum Torre. Specimens, . . . 202 



38. Cerion crassiusculum Smithi Bl. Specimens, . . . 202 



39, 40. Cerion antonii Kiist. After Kiister, .... 192 



PLATE 33. 



41-45. Cerion uva L. Specimens, 180 



46. Cerion uva desculptum P. & V. Specimens, . . . 181 

 47-49. Cerion crassilabre Sh. Anageda. Specimens, . .192 

 50-52. Cerion crassilabre Sh. Ponce, Pto. Rico. Specimens, 192 



53. Cerion rude latilabris Pfr. Mai. Bl., . . . .194 



54, 55. Cerion rude Pfr. Specimens, ..... 194 

 56, 57. Cerion rude Pfr. Mai. Bl., 194 



58. Cerion yumaense P. & V. Specimen, .... 194 



59. Cerion yumaense ferrugineum Mayn. Contrib. to Sci., . 195 



60. Cerion yumaense sallei P. & V. Specimen, . . .195 



61. Cerion yumaense sallei P. & V. Specimen, . . . 195 



