EXPLANATION OF PLATES, VOL. XII. 247 



FIGURE PAGE 



PLATE 9 (Drymceus). 



34. D. californicus Reeve (== ziegleri). Conch. Icon., . . 40 



35. D. serperastrum Say. Mrs. Say, del., . . . 37, 39 



36. D. serperastrum Say. From Ticul, Yucatan, Sheppard, del., 37 



37. D. serperastrum Say. After Strebel., . . . .37 



38. 39. D. paivanus (= serperastrum). Moll. Mex., . . 38 

 40, 41. D. paivanus (= serperastrum). Novit. Conch., . . 38 

 42-44. D. castus Pfr., typical. Biologia, . . .43, 44 

 45, 46. D. castus v. porrectus Mart. Moll. Mex., . . .44 



47. D. castus v. porrectus Mart. Biologia, . . . .44 



48. D. castus v. porrectus Mart. Biologia, . . . .44 



49. D. castus v. porrrectus Mart. Moll. Mex., . . .44 



50. 51. D. castus Pfr. Moll. Mex., 43 



52, 53. D. castus v. xantholeucus. Biologia, . . . .44 



PLATE 10 (Drymceus}. 



54. D. dunkeri Pfr. Conch. Icon., ..... 45 



55. D. dunkeri Pfr. Biologia, . . . . . .45 



56. 57. D. dunkeri var. forreri Monss. Biologia, . . .46 

 58. D. dunkeri var. forreri Monss. Journ. de Conchyl., . 46 

 59-61. D. sulcosus Pfr. Biologia, 48 



62. D. sulcosus Pfr. Moll. Mex., 48 



63. D. sulcosus Pfr. Sheppard, del., 48 



64. D. jonasi Pfr. Sheppard, del., . . . . .54 



65. D. rudis Anton. Conch. Icon., . . . . .49 



66. 67. D. rudis Anton. Moll. Mex., 49 



68-70. D. jonasi Pfr. Biologia, 54 



71. D. jonasi Pfr. Conch. Icon., ...... 54 



PLATE 1 1 (Drytticeus). 



I, 2, 3, 4. D. elongatus Bolt. Porto Rico specimens, . . 23 

 5, 6. D. elongatus Bolt. Anaj>;eda specimens, . . .23 

 7, 8. D. elongatus Bolt. St. Thomas specimens . . .23 

 9, 10. D. elongatus Bolt. After Ferussac, . . . .23 



II. D. elongatus Bolt. Conch. Cab., 23 



12. D. elongatus Bolt. St. Eustatius specimen, . . .23 

 13-17. D. elongatus Bolt. Tortola specimens, . . .23 

 18, 19. D. elongatus var. St. Croix specimens, . . .26 

 20-23. D. elongatus v. anguillensis Pfr. Novit. Conch., . 26 



24. D. elongatus v. extinctus Pfr. Specimen, . . .26 



25, 26. D. elongatus v. extinctus Pfr. Malak. Blatt., . . 26 

 27-29. D. multilineatus Say. Florida. Terr. Moll., Ill, . 27 



30. D. multilineatus var. Yuracui, Venezuela, specimen, 27, 28 



31. D. multilineatus var. South American specimen, . 27, 28 



