PLATE 31 



1. Astraea longispina spinulosa Lamarck. 65 mm. p. 8S. 



S. Astraea longispina Lamarck. 40 mm. p. 82. 



3. Astraea tuber Llnne. Boca Raton, Florida. 2 Inches, p. 88. 



4. Tegiila fasclata Born. Biscayne Bay, Florida. 16 mm. p. 78. 



5. Astraea imbricata Gmelin. 40 mm. p. 8S. 



6. Astraea amerlcana Gmelin. Florida Keys. 1 inch. p. 82. 



7. Llvona pica Linne. West Indies. 2.75 inches. p. 79. 



8. Calliostoma jujubinum Gmelin. West Florida. 33 mm. p. 79. 



9. Astraea brevispina Lamarck. West Indies. 40 mm. p. 82. 



10. Astraea caelata Gmelin. Lantana, Florida. 3 inches, p. 82. 

 11a, lib. Turbo castaneus Gmelin. Florida Keys. 30 mm. p. 81. 



12. Calliostoma roseolum Ball. 9.5 mm. p. 79. 



13. Margarites groenlandicus Gmelin. Maine. 6 mm. p. 80. 



14. Cochllolepis striata Dall. Palm Beach, Florida. 6.5 mm. p. 80. 



15. Lacuna vincta Montagu. Maine. 8 mm. p. 101. 



16. Calliostoma occidentalis Michels and Adams. Casco Bay, Maine. 15 mm. p. 79. 

 17a, 17b. Cochllolepis parasitica Stimpson. 2 mm. p. 80. 



18. Calliostoma euglyptum A. Adams. Sarasota, Florida. 18 mm. p. 79. 



19. Solariella obscura Couth. Casco Bay, Maine. 9 mm. p. 79. 



20. Phasianella bella Pllsbry. Florida Keys. 2;,5 mm. p. 81. 



