PLATE 



1 8 



Tivela mactroides Born. Nicaragua. 2 inches, p. 52 



Strigilla flexuosa Say. Key West, Florida. 10 mm. p. 60. 



Dosinia elegans Conrad. Sanibel, Florida. 2.5 inches, p. 



Hysteroconcha dlone Linn6. West Indies. 35 mm. p. 53. 



Rangia cimeata rostrata Petit. 2 inches. p. 65. 



Gafrariiam cerina C. B. Adams. Charlotte Harbor, Florida. 



Gemma gemma Totten. 4 mm. p. 55. 



Strigilla rombergi Morch. 20 mm. p. 60. 



Tellina angulosa Gmelin. Woimta Haulover, Nicaragua. 42 mm. p. 58. 



Tellina tenera Say. Cape May, New Jersey. 13 mm. p. 58. 



Tellina martlnlcensis Orbigny. Dominican Republic. 10 mm. 



Chione granulata Gmelin. Jamaica. 24 mm. p. 54. 



51. 



12 mm. p. 52. 



p. 53. 



