PLATE Ik 



1. Echlnochama arclnella Llnne ' . Sanlbel, Florida 2 Inches, p. 45. 



2. Chama macerophylla Graelin. West Indies, p. kk . 



5a. Plicatula glbbosa Lamarck, interior of left valve. 28 mm. p. 52. 

 5b. Plicatula gibbosa Lamarck, interior of right valve. 28 mm. p. 52. 

 k. Chama congregata Conrad. 21 mm. Sanlbel, Florida, p. kk . 



5a. 5b. Venericardia tridentata Say. Beaufort, North Carolina. 6.5. nmi. p. kh. 

 6. Terebratula caput -serpentis Couth. New England. 15 mm. Brachiopod. 



7a, 7b. Gastrochaena cuneiformls Spengler. Florida. 25 mm. p. 68. 

 8. Codakla orbiculata Montagu. Biscayne Bay, Florida 15 mm. p. 47. 



9a, 9b. Ostrea cristata Born. Gulf of Mexico. 2.5 inches, p. 51. 



10a, 10b. Ostrea equestris Say. Florida. 1.5 inches, p. 51. 



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