EXPLANATION OF PLATES, XVII. 



339 



FIGURE 



81. D. zelandicum Sowb. From Thes. Conch., 



82. D. profundorura Smith. From Ann. Mao-., 



83. D. compressum [^=bungerfbrdi]. From P. Z. S., 



84. D, buccinulum Gld. From C. Icon., 



85. D. intercalatum Gld. From C. Icon., 



86. D. lessoni Dh. From Desliayes, 



87-89. D. plurifissuratum Sowb. From P. Mai. Soc, 

 90. D. lessoni Dh. From Chenu, .... 



Plate 7. 



70 

 79 

 84 

 14 

 23 

 8 

 82- 



1. D. laqueatum Verr. From Tr. Conn. Acad., 



2. D. laqueatum Verr. From Blake Rep., . 



3. D. callithrix Dall. From Blake Rep., . 



4. D. ceratum Dall (young). From Blake Rep., 



5. D. ceratum Dall. From Blake Rep., 



6. D. carduus Dall. From Blake Rep., 



7. D. ensiculus Jeffr. From Blake Rep., 



8. 9. D. ensiculus Jeffr. From P. Z. S., 



10. D. ensiculus Jeffr. From Chall. Rep., 



11. D. compressum Wats. (=pressum). From Cht 



12. D. sericatum Dall. From Blake Rep., 



13. D. ophiodon Dall. From Blake Rep., 



14. D. gouldii var. obsoletum Dall. From Blake 



15. 16. D. subterfissum Jeffr. From P. Z. S., 

 17-19. D. subterfissum Jeffr. From Chall. Rep., 

 20. D. didymum Wats. From Chall. Rep., . 



Plate 8. 



21. D. abyssorum Sars {A. striolata Sars). From Sars, 



22, 23. D. vulgare DaCosta. From Moll. Rouss., . 



24. D. vulgare DaCosta. From Forbes & Hanley, 



25. D. entalis L. From Forbes & Hanley, . 



26. D. circumcinctum Wats. From Chall. Rep., 



27. 28. D. solidum Verr. (=candidum). From Tr. Conn 



Acad., . 



29, 30. D. candidum Jeffr. From P. Z. S., . 

 31, 32. D. capillosum Jeffr. From P. Z. S., . 



33. D. capillosum Jeffr. Specimen, 



34, 35. D. capillosum Jeffr. From Chall. Rep., 

 36. D. agile Sars. From Sars, 

 87. D. ampbialum Wats. From Chall. Rep., 



Plate 9. 



38. D. panormum Chenu. Specimen, 



39. D. panormum Chenu. From Thes. Conch., 



48 

 41 

 41 

 42 



72 



72 

 77 

 77 

 77 

 46 

 71 



54 

 54 



