154 DESCRIPTION OF PLATES. 



PLATE 5. 



FIGS. 1, 2, 3. Ampullina (Ampullinopsis) spenceri, n. sp. (1) Ventral view of first cotype. 



Antigua. XI. (2) Ventral view of second cotype. Antigua. XI. (3) Ventral 



view of a larger specimen. Willoughby Bay, Antigua. X 1. Page 123. 

 FIGS. 4 a-c. Turbo antiguensis, n. sp. (4a) Ventral view of type. Rifle Butts, Antigua. X 1. 



(46) Basal view of same specimen. X 1. (4c) Dorsal view of same specimen. X 1. 



Page 125. 

 FIGS. 5 o, b. Margarita naticoides, n. sp. (5a) Ventral view of type. Bejucal, Cuba. XL (56) 



Dorsal view of same specimen. X 1. Page 125. 

 FIGS. 6 a, b. Sinum chipolanum (Dall). (6a) Ventral view. Crocus Bay, Anguilla. X 2. 



(66) Dorsal view of same specimen. X 2. Page 124. 

 FIGS. 7, 8. Neretina? grandis, n. sp. (7) Dorsal view of type. Anse Lezard, St. Bartholomew. 



XL (8) Dorsal view of large specimen. St. Jean Bay, St. Bartholomew. X 1. 



Page 126. 

 FIGS. 9 a-c. Elmira cornu-arietis, n. sp. (9a) Ventral view of type. Bejucal, Cuba. XI. (96) 



Apical view of same specimen. X 1. (9c) Dorsal view of same specimen. X 1. 



Page 123. 

 FIGS. 10 a, b. Scapharca anguillana, n. sp. (10a) Exterior of right valve of type. Crocus Bay, 



Anguilla. X 1. (106) Interior of same specimen. X 1. Page 127. 

 FIGS. 11 a, 6. Scapharca willobiana, n. sp. (lla) Right valve of type. Willoughby Bay, 



Antigua. X 1. (116) Left valve of same specimen. X 1. Page 127. 



PLATE 6. 



FIGS. 1 a, 6, 2 a, 6. Ostrea antiguensis Brown, (la) Exterior of upper valve. Rifle Butts, 

 Antigua. X 0.75 (16) Exterior of lower valve of same specimen. X 0.75 (2a) Ex- 

 terior of lower valve. Same locality. X 0.75 (26) Interior of same specimen. 

 X 0.75 Page 128. 



PLATE 7. 



FIGS. 1, 2. Ostrea haitensis Sowerby. (1) Interior of valve. Santiago, Cuba. X 1. (2) Inte 



rior of lower valve of young individual. Santiago, Cuba. X 1.5. Page 129. 

 FIG. 3. Pecten nodosissimus, n. sp. Right valve. Willoughby Bay, Antigua. X 1.5. Page 141. 

 FIGS. 4 a, 6. Pecten waylandi, n. sp. (4a) Left valve of type. Santiago, Cuba. X 1.5. (46) 



Right valve of same individual. X 1.5. Page 131. 

 FIGS. 5, 6. Pecten gardnerce, n. sp. (5) Left valve. Santiago, Cuba. X 1.5. (6) Right valve 



of another individual. Santiago, Cuba. X 1.5. Page 134. 

 FIGS. 7, 8. Pecten articulosus, n. sp. (7) Right valve, type. Guajay, Cuba. XI. (8) Left 



valve of another individual. Guajay, Cuba. X 1. Page 136. 



PLATE 8. 



FIG. 1. Ostrea haitensis Sowerby. Exterior. La Cruz, Cuba. X 0.5. Page 129. 



FIGS. 2, 3, 4. Pecten vaughani, n. sp. (2) Left valve. Crocus Bay, Anguilla. X 1.5. (3) 



Right valve of type. Crocus Bay, Anguilla. X 1.5. (4) Right valve. Crocus 



Bay, Anguilla. X 1.5. Page 133. 



FIG. 5. Pecten oxygonum Sowerby? Right valve. Hodge's Bluff, Antigua. X 1.5. Page 137. 

 FIGS. 6 a, 6, 7. Pecten vaughani var. flabellum, n. var. (6a) Left valve of type. Santiago, 



Cuba. X 1.5. (66) Right valve of type. X 1.5. (7) Right valve. La Cruz, Cuba. 



X 1.5. Page 134. 

 FIGS. 8, 9, 10. Pecten perplexus, n. sp. (8) Right valve. Crocus Bay, Anguilla. X 1-5. (9) 



Left valve. Crocus Bay, Anguilla. X 1.5. (10) Detail of sculpture. Crocus Bay, 



Anguilla. Greatly enlarged. Page 138. 



PLATE 9. 



FIG. 1. Ostrea cf. O. trigonalis Conrad. Upper valve. St. Jean Bay, St. Bartholomew. X 0.75. 



Page 129. 

 FIGS. 2 a, b. Pecten crocus, n. sp. (2a) Right valve. Crocus Bay, Anguilla. X 1. (26) Left 



valve of same individual. X 1. Page 135. 

 FIGS. 3 a-c. Unio bitumen, n. sp. (3a) Right valve. Bejucal, Cuba. X 0.75. (36) Left 



valve of same individual. X 0.75. (3c) Dorsal view of same individual. X 0.75. 



Page 130. 

 FIGS. 4 a, 6. Pinna vaughani, n. sp. (4a) Right valve. Crocus Bay, Anguilla. X 1. (46) 



Left valve of same specimen, tilted to show ventral sculpture. X 1. Page 127. 



