PLATE 25 



1. Tivela abaconls Dall. Yamato, Florida. 11 mm. p. 52. 



2. Petrlcola pholadiformis lata Dall. Beaufort, North Carolina. 1.75 Inches, 



p. 56. 

 3a, 3b. Donax denticulatus Llnne. Nicaragua. 28 mm. p. 62. 



4. Tagelus gibbus Spengler. 4 inches, p. 64. 



5. Siliqua costata Say. Swampscott, Massachusetts. 2 inches, p. 64 



6. Petrlcola pholadiformis -Lamarck. Far Rockaway, New York. 2.35 inches. 



p. 56. 



7a, 7b. Rupellaria typlca Jonas. Palm Beach, Florida. 1 inch. p. 56. 

 8. Polymesoda floridana sarasotaensis Henderson. Tampa Bay^ Florida. 1.25 inch- 

 es, p. 43. 



9a, 9b. Heterodonax blmaculatum Linne. 20 mm. p. 63. 

 10. Donax variabilis Say. West Florida. 1 inch. p. 62. 



11a, lib. Petrlcola lapicida Gmelin. Gordon Pass, Florida. 20 mm. p. 56. 



12. Asaphis deflorata Linn6. Miami, Florida. 2 inches, p. 63. 



13. Sanguinolaria sanguinolenta Gmelin. Jamaica. 40 mm. p. 63. 



14. Coralliophaga coralliophaga Gmelin. Bermuda. 1.5 inches, p. 56. 



15. Spisula polynyma Stimpson. Grand Manan, N. B. 3.5 inches, p. 65. 



16. Barnea truncata Say. 28 mm. p. 69. 



17. Tagelus divisus Spengler. New England. 1.5 inches, p. 63. 



200 



