i 



I 





Fig. 1. 



2. 



3. 

 4, 

 5. 

 6. 



7. 



8. 



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10. 



11. 

 12. 

 13. 



14. 



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16. 



PLATE VII. 



Page 



Ostrea golfotristensis n. sp. Height of fragment 15 mm. Soldado Rock. Lignitic 



Eocene 37 



Ostrea pulaskensis Harris. Height 22 mm. Lateral view showing lines of growth. 



Soldado Rock. Midway Eocene 38 



Plicatula cf. torta Gabb. Rio Grande, Venezuela. Cretaceous 41 



Spondylus sp. indet. Height of fragment 31 mm. Soldado Rock. Lignitic Eocene. . . 41 

 Pecten sp. indet. Cast of interior. Height 6 mm. Brighton, Trinidad. Oligocene 

 Perna obliqua Lam. Young shells. Burrowing in solid rock. Height of shell 10 mm. 



Black Rock, Gulf of Paria. Recent 41 



Inoceramus labiatus Schloth. [plicatus (d'Orb.) Krst.] Height 55 mm. Hurupu, 



Venezuela. Probably Turonian 41 



Inoceramus labiatus Schloth. Same locality. Showing variations in groovings 41 



Modiola cf. alabamensis Aldrich. Length 23 mm. Soldado Rock. Lignitic Eocene. 43 

 Area (Argina) schultzana n. sp. Length 35 mm. Gulf of Paria, Brighton, Trinidad. 



Recent . . 46 



Area (Argina) schultzana n. sp. Interior of same valve showing hinge 46 



Area (Argina) schultzana n. sp. Lateral view, same valve 46 



Area (Cunearca) chemnitzioides n. sp. Mould in ferruginous marl. Lateral view 



showing unequal valves. Brighton. Oligocene 44 



Area (Cunearca) chemnitzioides n. sp. Internal mould showing high, triangular form. 



Length 22 mm. Brighton. Oligocene 44 



Area (Cunearca) chemnitzioides n. sp. From a gutta-percha impression showing surface 



sculpture. Same locality ." 44 



Area sp, indet. Length of fragment 18 mm. Brighton. Oligocene. ..,...., 47 



; ! 





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