EXPLANATION OF PLATES. 



VOL. XII. 

 PLATE 1 (Drym&us). 



FIGUEE. PAGE. 



72. 73. D. ghiesbreghti var. stolli Martens. Biologia, . . 51 



74. D. ghiesbreghti Pfr. Moll. Mex., . ." . . .50 



75. D. ghiesbreghti var. interstitialis Martens. Biologia, . 51 



76. 77, 78. D. ghiesbreghti var. stolli Martens, . .51 

 79, 80. D. ghiesbreghti var. iodostylus Pfr. After Strebel . 51 



81. D. hegewischi Pfr. After Reeve, .-. . . . , . 52 



82. D. hegewischi Pfr. Biologia, . . . . *.;."" . 52 



83. 84, 85. D. hegewischi Pfr. Moll. Mex., . . _ . . 52 



86. D. aurifluus Pfr. Novit. Conch., v. . . ,,. : . 55 



87. D. aurifluus Pfr. Moll. Mex., . . , . ;..' , . . 55 



88. 89. D. cucullus Morel. Moll. Mex.,. ." ,, . . 58 

 90,91. D. lineolatus Conrad. Ross, del. ' . .. . . 57 

 92, 93. D. recluzianus Pfr. Conchyl. Cab., . .\ . . 55 

 94, 95. D. recluzianus Pfr. Conch. Icon., . .. . . 55 

 96. D. lirinus Morel. Moll. Mex., . ., ;.. . ^ . . 57 



PLATE 2 (Drymceus). 



1. D. geaiei (= fenestrellus Mart.}. P. Z. S. 1869, . . 58 



2, 3, 4. D. gealei (= fenestrellus Mart.). Moll. Mex., . . 58 



5. D. gealei (= fenestrellus var. subunicolor Mart.). Moll. 



Mex., . . . . 59 



6, 7, 8. D. attenuatus Pfr. Biologia, 60 



9, 10, 11. D. attenuatns var. varicosus Pfr. Biologia, . . 61 



12, 13. D. attenuatus Pfr. Sheppard, del., . . . . 60 



14. D. attenuatus var. concolor Mart. After Strebel, . .61 



15. D. kefersteini Pfr. (= attenuatus Pfr.). Novit. Conch. . 60 



16. D. attenuatus var. pittieri Mart. Biologia, . . .61 



17. 18. D. trimarianus Martens. Biologia, . . . .62 



19, 20. D. costaricensis Pfr. Novit. Conch 63 



21, 22. D. navarrensis Ang. (= costariensis). P. Z. S. 1878, . 64 



23, 24, 5. D. hepatostomus Pfr. Biologia, . . . .62 



26, 27. D. hepatostomus Pfr. Moll. Mex. . . . .62 



PLATE 3 (Drymceus}. 



28, 29. D. pluvialis Pfr. Novit. Conch., . . . .64 



30, 31. D. sargi C. & F. Moll. Mex, 65 



32. 33. D. sargi var. montagui Mart. Biologia, . . .65 



(244) 



