PLATE 37 



1. 



2. 



3. 



4. 



5. 



6a, 6b. 



7. 



8. 



9. 

 10. 



11a, lib. 

 12. 

 13. 

 14. 

 15. 



16a, 16b. 

 17. 

 18. 

 19. 

 20. 

 21. 

 22. 

 23. 

 24. 

 25. 



Archltectonica bisulcata Orbigny. Yatnato, Florida. 10 mm. p. 98. 

 Architectonica cyclostoma Menke. Matecvunbe Key, Florida. 13 mm. 

 Archltectonica delphinuloides Orbigny. Yamato, Florida. 7.5 mm. 

 Architectonica granulata Lamarck. Lake Worth, Florida. 2 inches. 

 Llttorina angulifera Lamarck. Lake Worth, Florida. 1.25 inches. 



p. 99. 

 p. 99. 



p. 98. 

 p. 100. 



Tectarlus miiricatus Linne. 

 Planaxis nucleus Lamarck. 

 Planaxis lineatus Da Costa, 

 Echinella nodulosa Gmelin. 



Boca Raton, Florida. 

 Palm Beach, Florida. 

 Palm Beach, Florida, 

 Boca Raton, Florida. 



1 inch. 



12 mm. 



9 mm. 

 18 mm. 

 97. 



6 mm. 



Litiopa bombyx Rang. Yamato, Florida. 5 mm. p. 

 Alaba tervaricosa C. B. Adams. Boynton, Florida. 

 Hydrobia minuta Totten. 4 mm. p. 97. 



Llttorina littorea Linne. New England. 1 inch. p. 99. 

 Turritella variegata Linn6. 3.5 inches, p. 101. 

 Llttorina ziczac lineata Lamarck. Jupiter, Florida. 12 mm, 

 Rissoina laevigata C. B. Adams. Palm Beach, Florida. 4 mm. 

 Rissoina cancellata Philippi. Florida Keys. 8 mm. p. 97. 

 Rissoina chesnelli Michaud. West Florida. 4 mm. p. 97. 

 Rissoina bryerea Montagu. Palm Beach, Florida. 5 mm. p. 

 Llttorina irrorata Say. Coronado Beach, Florida. 1 inch. 

 Modulus modulus Linne. 15 mm. p. 104. 

 Llttorina obtusata Linn§. New England. 22 mm. p. 99. 

 Llttorina saxitile Olivi. New England. 12 mm. p. 99. 

 Llttorina ziczac Gmelin. Boca Raton, Florida. 12 mm. 

 Rissoina decussata Montagu. 6 mm. p. 97. 



p. 100. 



104. 



. 103. 



. 100. 



. 98. 



100. 

 97. 



97. 



P- 



100. 



99. 



