EXPLANATION OF PLATES, VOL. XII. 249 



FIGURE PAGE 



2-4. D. vincentinus Pfr. Sheppard, del., . . . .17 

 5-7. D. vincentinus Pfr. From Tobago. Sheppard, del., 17, 18 



PLATE 14 (Leiostracus). 



1-3. D. vittatus Spix. Conch. Icon., . . . . .91 



4. D. vittatus Spix. Sheppard, del., ... .91 



5. D. vittatus Spix. Conchyl. Cab., . . 91 

 6-13. D. obliquus Reeve. Jahrb. D. M. Ges. X, . . [93 



14. D. obliquus Reeve. Conch. Icon., . . . . .93 



1 5. D. jeffreysi Pfr. (= obliquus). Conchyl. Cab., . . '. 93 



16. D. onager Beck. Conch. Icon., . . . . .94 



17. D. onager v. subtuszonata Pils. Conch. Icon., . . .95 



18. D. vimineus Moric. Conch. Icon., . . . . .95 



19. 20. D. vimineus Moric. Sheppard, del., . . . .95 



21. D. perlucidus Spix. Conch. Icon., . . . . .98 



22. D. perlucidus Spix. Sheppard, del., . . . .98 



23. D. manoeli Moric. Conch. Icon., . . . . .96 



24. D. manoeli Moric. Sheppard, del., . . . . .96 



25. B. lineatus Spix(= D. cinnamomeolineatus). Conch. Icon., 97 



26. D. cinnamomeolineatus Mor. Conch. Icon., . . .97 



27. D. cinnamomeolineatus Mor. After Moricand, . . . 97 

 38. D. cinnamomeolineatus Mor. Sheppard, de!.. . . .97 



PLATE 15 (Drymceus). 



29, 30. D. chaperi C. & F. Journ. de Conchyl., . . .46 



31. D. dunkeri Pfr. Sheppard, del., . . . 45 



32, 33. D. ghiesbreghti Pfr. Novit. Conch., 50, 51 



34, 35. D. botterii C. & F. Moll. Mex 47 



36, 37. D. attenuatus v. varicosus Pfr. Conchyl. Cab., . . 61 



38. D. alternans Beck. Conch. Icon., f. 152, . . .86 



39, 40. D. alternans Beck. Moll. Mex., . . . .86 



41. D. hondurasanus Pfr. Conch. Icon., . . . .88 



42. D. uhdeanus v. cuernavacensis. Moll. Mex., . . .84 



43. 44, 45, 46. D. rudis Anton. Sheppard, del., . . .49 

 47, 48, 49, 50. D. uhdeanus Martens. Biologia, . . .83 



51. D. uhdeanus v. cuernavacensis. Biologia, . . .84 



52. D. uhdeanus v. tepecensis Mart. Biologia, . . .84 



53. D. uhdeanus v. borealis Mart. Biologia, . . .84 



PLATE 16 ( Oxystyla princeps). 



1, O. princeps Brod. (" B. zebra var.," Reeve). Conch. Icon., 113 



2, 7. O. princeps Brod. Biologia Centr.-Amer., . . . 113 



3, 4, 6. O. princeps Brod. Strebel, Beitrag., . . . 113 

 5. O. princeps Brod. Sheppard, del., .... 113, 115 



8. O. princeps v. crossei Martens. Sheppard, del., . . 116 



9. O. princeps v. fischeri Martens. Biologia, . . . 116 



