PLATE 8 



Pecten glbbus ampllcostatus Dall. Texas. 2.5 Inches, p. 34, 



Pecten imbrlcatus Gmelin. Yamato, Florida, 35 mm, p. 34. 



Pecten nodosus Linn6. West Florida. 4,5 inches, p. 34. 



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



Pecten exasperatus Sowerby. Sanibel, Florida. 2 inches, p. 33. 



Pecten antillarum Recluz. Florida Keys. 15 mm. p. 35. 



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. 



