110 CONTRIBUTION TO THE PALEONTOLOGY OF TRINIDAD 



9. Meretrix subimpressa var. golfotristensis new var. Length 20 mm. Soldado Rock. 



Lignitic Eocene • • • • • • 56 



10. Callista mcgrathiana Rathbun. Length 24 mm. Soldado Rock. Midway Eocene 57 



11. Callista mcgrathiana var. rathbunensis new var. Length 21 mm. Soldado Rock. 



Midway Eocene ■ 58 



12. Pitaria ( Lamelliconcha) circinata Born. Young shell. Length 10 mm. Brighton, 



Trinidad. Upper Oligocene 56 



13. Pitaria (Lamelliconcha) circinata Born. Interior of same shell 56 



14. Pitaria (Lamelliconcha) labreanan.ep. Length 17 mm. Brighton. Upper Oligocene 57 



15. Pitaria ( Lamelliconcha) labreana n. sp. Interior of same valve 57 



16. Chione dalliana n. sp. Length 20 mm. Brighton, Trinidad. Upper Oligocene 59 



17. Chione veatchiana n. sp. Length 25 mm. Brighton, Upper Oligocene 58 



18. Chione veatchiana n. sp. Same shell. Interior showing hinge characters 58 



19. Chione guppy ana n. sp. Length 19 mm. Brighton, Trinidad. Upper Oligocene 59 



20. Chione paraensis White var. Length 8 mm. Soldado Rock. Midway Eocene 60 



21. Venerupis atlantica n. sp. Length of fragment 13 mm. Soldado Rock. Lignitic 



Eocene 



60 



22. Mactra austeniana n. sp. Length 27 mm. Brighton, Trinidad. Upper Oligocene 61 



23. Mactra austeniana n. sp. Interior of same shell showing hinge characters 61 



24. Corbula (Cuneocorbula) subengonata Dall. Height 65 mm. Soldado Rock. Lignitic 



Eocene • 62 



25. Corbula (Cuneocorbula) helena n. sp. Length 8 mm. Brighton, Trinidad. Upper 



Oligocene 62 



26. Corbula sp. indet. Interior moulds. Length 11 mm. Brighton. Oligocene 64 



27. Corbula sp. indet. Lateral view of same mould y • : y ^ 



28. Corbula (Cuneocorbula) weaveri n. sp. Length 8 mm. Soldado Rock. Lignitic 



Eocene . • - 4 — 63 



29. Corbula ( Bothrocorbula) smithiana n. sp. Length 8.5 mm. Brighton, Trinidad. 



Upper Oligocene 63 



30. Corbula (Bothrocorbula) smithiana n. sp. Same shell, interior 



63 



31. Pholas mackiana n. sp. Length of fragment 21 mm. Brighton, Trinidad. Oligocene 64 



32. Martesia oligocenica n. sp. Interior mould. Length 14 mm. Brighton. Oligocene 65 



33. Martesia oligocenica n. sp. Same mould: anterior view showing gape of valves 65 



PLATE X. 



Page 



Fig. 1. Cylichna solivaga n. sp. Height 9.5 mm. Soldado Rock. Lignitic Eocene 65 



2. Terebra sp. indet. Height of fragment 4 mm. Brighton, Trinidad. Oligocene 6b 



3. Pleurotoma guppyana n. sp. Height 9 mm. Soldado Rock. Lignitic Eocene 60 



9 • • 



67 



4. Oliva trinidadensis n. sp. Height 15 mm. Brighton. Oligocene °' 



5. Marginella daUiana n. sp. Height 20 mm. Adult shell. Brighton. Upper Oligocene o7 



6. Marginella dalliana n. sp. Height 21 mm. Large but immature shell. Brighton, 



Trinidad. Upper Oligocene fiR 



7. Caricella ogilviana n. sp. Height 25 mm. Soldado Rock. Midway Eocene jjjj 



8. Caricella perpinguis n. sp. Height 29 mm. Soldado Rock. Midway Eocene ...... j*jj 



69 

 70 



9. Caricella sp. indet. Height of fragment 15 mm. Soldado Rock. Lignitic Eocene 

 10. Volutilithes pariaensis n. sp. Height 18 mm. Soldado Rock. Midway Eocene 



• • • • 



71 



11. Volutilithes sp. indet. Height 13 mm. Soldado Rock. Lignitic Eocene 



12. Lyria toikoxiana var. aldrichiana new var. Height 23 mm. Soldado Rock. Midway 



Eocene • 



13. Lyria wilcoxiana var. aldrichiana new var. Same sheil, dorsal view showing longi- 



tudinal plications L 



14. Levifusus pagoda Heilprin. Height 39 mm. Soldado Rock. Midway Eocene ... 



15. Fusus bocaserpentis n. sp. Height of fragment 35 mm. Soldado Rock. Midway 



Eocene 



16. Fusus bocaserpentis n. sp. Height of fragment 31 mm. Soldado Rock. Midway 



Eocene •* 



17. Fusus bocarepertus n. sp. Height of fragment 20 mm. Soldado Rock. Lignitic 



Eocene ™ 



18. Fusus colubri n. sp. Height 25 mm. " Soldado Rock. ' Midway Eocene • y • : y 



19. Fusus longiusculoides n. sp. Height of fragment 12 mm. Soldado Rock. Ligninc 



Eocene 73 



20. Fusus meunieri n. sp. Height 18 mm. ' Soldado Rock. Midway Eocene 74 



21. Fusus mohrioides n. sp. Height 22 mm. Soldado Rock. Midway Eocene 75 



22. Fusus sewaUiana n. sp. Height 40 mm. Soldado Rock. Midway Eocene ••;••;•• ' 



23. Fusus sirenidedUus n. sp. Height of fragment 40 mm. Soldado Rock. Midway 



Eocene 



75 



