PLATE 10 



la, lb. Lima scabra Born. West Florida. 2.75 Inches, p. 36. 



2. Papyridea semlsulcata Gray. Yamato, Florida. 8 mm. p. 49. 



Sa, 3b. Lima hians Gmelin. 44 mm. p. 36. 



4. Lima subauriculata Montagu. Oban, Scotland, p. 36. 



5. Lima lima Linne. West Indies. 1.5 inches, p. 36. 



6. Anomla simplex Orbigny. Off Gulfport, Florida. 



7. Semele nuculoides Conrad. Off Key West, Florida. 



8. Mytilus recurvus Rafinesque. Mexico. 2 inches. 



9. Donax tumida Philippi. St. Augustine, Florida. 



10. Crassatella gibbsl T. and H. Tertiary, Florida. 



11. Saxicava arctica Linne. Brooklin, Maine. 1 inch. 



12. Donax fossor Say. Florida. 12 mm. p. 62. 



13. Pododesmus decipiens Philippi. Argentina. 3 inches, p. 37. 



14. Lima tenera Sowerby. Gulf of Mexico. 1.5 inches, p. 36. 



