PLATE 8 



Pecten gibbus ampllcostatus Dall. Texas. 2.5 Inches, j. 5 



Pecten imbrlcatus Gmelin. Yamato, Florida. 35 mm. p. 3 



Pecten nodosus Linne. West Florida. 4.5 inches, p. 34. 



Pecten ornatus Lamarck. Jupiter, Florida. 12 mm. p. 33. 



Pecten muscosus Wood. Sanibel, Florida. 2 inches, p. 33. 



Pecten antillarum Recluz. Florida Keys. 15 mm. p. 55- 



Glycymeris pennaceus Lamarck. Barbados. 29 mm. p. 29. 



Lithophaga aristata Dillwyn. Jamaica, W. I. 30 mm. p. 39. 



Corbula contracta Say. Vineyard Sound, Massachusetts. 11.5 mm. p. 67. 



