154 DESCRIPTION OF PLATES. 



Plate 5. 



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



Antigua. X 1. (2) Ventral view of second cotype. Antigua. X 1. (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. XI. (4c) Dorsal view of same specimen. XL 



Page 125. 

 Figs. 5 a, 6. Margarita naticoides, n. sp. (5a) Ventral view of type. Bejucal, Cuba. X 1. (56) 



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

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



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

 Figs. 7, 8. Neretinaf grandis, n. sp. (7) Dorsal view of type. Anse Lezard, St. Bartholomew. 



XI. (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 I. 



Page 123. 

 Figs. 10 a, 6. 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. (11a) 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 gardneroe, 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. X 1. (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, 6. 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 I. Page 127. 



