PLATE L 



Fig. I. Dentalinin elepliantinuni L. From Conch. Icon. 



Fig. 2. Dentalinin fonnosinn Ad. & R. From PiLSBRY. 



Fig. 3. Dentalium aprinum L. From Conch. Icon. 



Fig. 4. Dentaliuvi inter striahim Sowb. From Conch. Icon. 



Fig. 5. Dentalium Letsonae P. & Sh. From PiLSBRY. 



Fig. 6. Dentaliuvi javanum Sowb. From Conch. Icon. 



Fig. 7. Dentalium bisexangulatum Sowb. From Conch. Icon. 



Fig. 8. Dentalium octangjilatum Donovan. From Conch. Icon. 



Fig. 9. Dentalium intercalatum Gould. From PiLSBRY. 



Fig. 10. Dentalium pseudosexagonum Desh. From Conch. Icon. 



Fig. II. Dentalium Lessoni Desh. From Deshayes. 



Fig. 12. Dentalium Shoplandi Jouss. From PiLSBRY. 



Fig. 13. Dentalium quadrapicale Sowb. From Conch. Icon. 



Fig. 14. Dentalium hexagonum Gould. From Conch. Icon'. 



Fig. 15. Dentalium porcatum Gould. From Conch. Icon. 



Fig. 16. Dentalium cancellatum Sowb. From Conch. Icon. 



Fig. 17. Dentalium variabile Desh. From Conch. Icon. 



Fig. 18. Dentalium Belcheri Sowb. From Conch. Icon. 



Fig. 19. Dentalium multistriatum Desh. From DESHAYES. 



Fig. 20. Dentalium politum L. From DESHAYES. 



Fig. 21. Dentalium lacteum Desh. From DESHAYES. 



