PLATE 54 



1. Spondylus amerlcanus Hermann. West Florida. 4 inches, p. 32. 



2. Chione intapurpurea Conrad. Yamato, Florida. 35 mm. p. 53. 



3. Mya arenaria Linn6. New England. 3.5 inches, p. 66. 



4. Spondylus americanus Hermann. West Florida, p. 32. 

 5a, 5b. Voluta musica Linn6. West Indies, p. 127. 



6. Tellidora cristata Recluz. Sanibel, Florida. 1 inch. p. 60. 



7. Barnea costata Linn6. Marco, Florida. 6 inches, p. 69. 



8. Macrocallista nimbosa Solander. Marco, Florida. 4 inches, p. 52. 



9. Meioceras nitidim Stimpson. 2.5 mm. p. 103. 

 10. Caeciom carolinianum Dall. 4.75 mm. p. 103. 



