PLATE 55 



1. Detracla bulloldes Montagu. Florida Keys. 11 mm. p. 147. 



2. Auriculastrum pellucens Menke. Sanibel, Florida. 18 mm. p. 145. 



3. Phytia myosotls Drap. 8 mm. p. 145. 



4. Crucibulum auricula splnosum Sowerby. Pile, Florida. 1.2 Inches, p. 95, 



5. Melampus floridanus Shuttleworth. 7.5 mm. p. 146. 



6. Tralia pusilla Gmelin. 13 mm. p. 145. 



7. Melampus coffeus Linne. Florida. 18 mm. p. 148. 



8. Pedipes mirabllis Muhlfeld. Palm Beach, Florida. S mm. p. 145. 

 9a, 9b. Siphonaria naufragum Stearns. Eoynton, Florida. 1 inch. p. 146. 



10a, 10b. Siphonaria alternata Say. Florida Keys. 8 mm. p. 146. 



11. Melampus bidentatus Say. 10 mm. p. 146. 



IS. Melampus flavus Gmelin, 14 mm. p. 146. 



13. Dentalium semlstriolatum Guilding. 29.5 mm. p. 72. 



14a, 14b. Dentalium entale stimpsoni Henderson. 40 mm. p. 72. 



15. Trichotropis borealis costellarus Couthouy. 19 mm. p. 103. 



16a. Dentalium occidentale Stimpson. Apical portion magnified, p. 72. 



16b-16d. Dentalium occidentale Stimpson. 26-31 mm. p. 72. 



17. Dentalium semlstriolatum Guilding. 29.5 mm. p. 72. 



18a. Dentalium antillarum Orbigny. 20.5 mm. p. 71. 



18b. Same, showing sculptural detail, p. 71. 



19. Dentalium texasiana Philippi. 24, mm. p. 72. 



go. Pecten raveneli Dall. Florida. 30 mm. p. 33. 



21a. Dentalium callithrlx Dall. Juvenile 23.5 mm. p. 71. 



21b. Same, enlarged sculptural detail, p. 71. 



22. Cadulus carolinensis Bush. 8 mm. p. 73. 



