PLATE 21 



Cycllnella tenuis Recluz. Sanibel, Florida. 1 inch. p. 

 Venus campechlendis Gmelin. Sanibel, Florida. 4 inches. 

 Venus mercenaria notata Say. p. 54. 



Semele bellastriata Conrad. Key West, Florida. 20 mm. 

 Chione cancellata Linnfe. Lake Worth, Florida. 1 inch. 

 Venus mercenaria Linn6. New England. '6 inches, p. 54. 

 Anomalocardia cuneimeris Conrad. Lake Worth, Florida 

 Anomalocardia brasiliana Gmelin. 21 mm. p. 55. 

 Parastarte triquetra Conrad. Palm Beach, Florida, 3 mm. 

 Chione latirata Conrad. Yamato, Florida. 1.5 inches, p. 

 Antigona listeri Gray. Biscayne Bay, Florida. 2.5 inches 



5S. 



p. 



55. 



61. 

 53. 



17 mm. p. 55. 



p. 56. 

 54. 



p . 53 . 



192 



