PLATE 20 



1. Macrocallista inaculata Llnne ' . West Florida. 2.5 inches, p. 52. 



2. Macrocallista nlmbosa Solander. Marco, Florida. 4 Inches, p. 52. 



3. Pltarfulmlnata Menke. Lake Worth, Florida. 20 mm. (small), p. 52. 



4. Pltar morrhuana Gould. Massachusetts coast. 2 Inches, p. 52. 



5. Chlone pygmaea Lamarck. In fairly deep water off Florida, more frequent 



In the Bahamas and especially Lesser Antilles. 13 mm. p. ^k . 



6. Chlone mazyckil Dall, 20 mm. p. 53- 



7. Gastrochaena ovata Sowerby. Florida. 2k mm. p. 68. 



8. Chlone pubera Val. West Indies. 2-3 inches, p. 53- 



9. Kellla rubra Montagu. 3 mm. p. 48. 



10. Lucina radians Conrad. Florida. 17 mm. p. 46. 



11. Cardlum plnnulatum Conrad. Maine. 12 ram. p. 49. 



