PLATE 37 



1. 

 2. 

 3. 

 4. 



5. 



6a, 6b. 



7. 



8. 



9. 

 10. 



11a, lib. 

 12. 



is. 



14, 



15. 



16a, 16b, 



17. 



18. 



19. 



20. 



21. 



22. 



23. 



24. 



25. 



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

 Archltectonica cyclostoma Menke. Mateciimbe Key, Florida. 13 mm. 

 Architectonica delphinuloldes Orbigny. Yamato, Florida. 7.5 mm. 

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

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



p. 99. 

 p. 99. 



p. 98. 

 p. 100. 



Tectarius muricatus Linne. 

 Planaxis nucleus Lamarck. 

 Planaxls llneatus Da Costa 

 Echinella nodulosa Gmelin. 



Boca Raton, Florida. 

 Palm Beach, Florida. 

 Palm Beach, Florida, 

 Boca Raton, Florida, 



1 inch. 

 12 mm. 1 



9 mm. 

 18 

 97, 



6 



mm. 



mm. 



99. 



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

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

 Hydrobia minuta Totten. 4 mm. p, 97. 

 Littorina littorea Llnne, New England, 1 inch, p. 

 Turrltella variegata Linn6, 3.5 inches. p, 101, 

 Littorina zlczac lineata Lamarck, Jupiter, Florida, 

 Rlssoina laevigata C, B. Adams. Palm Beach, Florida 

 Rissoina cancellata Philippi. Florida Keys. 8 mm, 

 Rissoina chesnelli Michaud, West Florida. 4 mm, p 

 Rlssoina bryerea Montagu. Palm Beach, Florida. 5 i 

 Littorina Irrorata Say. Coronado Beach, Florida. 1 

 Modulus modulus Linne. 15 mm. p. 104. 

 Littorina obtusata Linn6. New England. 82 mm. p, 99, 

 Littorina saxitile Ollvi, New England, 12 mm. p. 99. 

 Littorina zlczac Gmelin. Boca Raton, Florida, 12 mm. p 

 Rissoina decussata Montagu. 6 mm. p, 97. 



p. 100. 



104. 



, 103. 



. 100, 



, 98, 



100. 



234 



