64 PROCEEDINGS OF NATIONAL MUSEUM vol.66 



8. Drillia, species aff. D. riogurahonU Maury; alt. 10 mm. Station 

 9224, Springvale near Couva ; page 24. 



10. Drillia consors hidlhrooki, new subspecies; type; alt. 18 mm.; 



page 16. 



11. Drillia tridadina, new species ; type ; alt. 7.5 mm. ; page 19. 



12, 13. Drillia consors trinitatensi-s, new subspecies ; cotypes. Fig. 12, alt. 

 6.5 mm. ; fig. 13, alt. 13 mm. ; page 17. 



Plate 4 



Fig. 1. Glyphostotrta caronensis, new species ; type ; alt. 8.6 mm. ; page 26. 

 2, 3. Glyphostoma amicta rintriada, new subspecies. Fig. 2, alt. 3.2 mm. : 

 fig. 3, alt. 4.3 mm. ; page 27. 



4. Glyphostoma? triniada, new species; type; alt. 5.2 mm.; page 26. 



5. Microdrillia trina, new species ; type ; alt. 6 mm. ; page 28. 



6,8. Drillia niaddrina, new species; cotypes. Fig 6, alt. 11 mm.; fig. 8, 

 alt. 7.6 mm. ; page 23. 



7. Microdrilliu propetrina, new species ; type ; alt. 3.6 mm. ; page 29. 

 9. Glyphostoma? addrina, new species; type; alt. 6.2 mm.; page 28. 



10. Drillia ritanida, new species; type; alt. 8.5 mm.; page 24. 



Plate 5 



Fig. 1. Marginella (FaVa) hullhrooki, new species; type; alt. 4.3 mm.; page 36. 

 2, 7. Ancilla paralamellaia, new species ; cotypes. Fig. 2, alt. 10 mm. ; 

 fig. 7, alt. 27.5 mm. ; page 33. 



3. Cancellaria hullhrooki, new species ; type ; alt. 7.3 mm. ; page 31. 



4. Ancilla caroniana Maury ; figured specimen ; alt. 41 mm. ; page 34. 



5. Ancilla caroniana springvaleensis, new subspecies ; alt. 35 mm. ; page 35. 



6. Pseudoliva guppyi, new species ; type ; alt. 10.5 mm. ; page 32. 



8. Borsonia {Parahorsonia) brassocnsis, new species; type; alt. 14.3 mm.; 



page 30. 



- Plate 6 



Figs. 1, 2, 3. Marginella guppyana, new species. Figs. 1, 3 type; alt. 18 mm.; 

 fig. 2, apical view of another specimen from type locality ; alt. 

 9 mm. ; page 37. 

 4. Marginella (Faba) hrassoensis, new species; type; alt. 3.5 mm. ; i>age 86. 

 5, 6. Marginella solitaria montserratensis, new subspecies ; type ; alt. -.7 

 mm. ; page 39. 

 Fig. 7. Marginella (Closia) nitrina, new species; type; alt. 2 mm.; page 40. 



8. Marginella {Gihbtrulu) trinitatensis, new species; type; alt. 4 mm.; 



page 41. 



9. Marginella (Closia) lachrimtila Gould? Alt. 3 mm.; page 40. 



10. Marginella (Persicula) propeobesa, new .si)ecies ; type; alt. 10 mm.; 



page 41. 



11. Marginella calypsonis Maury ; figured specimen ; alt. 20 mm. ; page 39. 



12. Marginella gnaica Maury ; figured specimen ; alt. 13.6 mm. ; page 38. 



13. Marginella .spriugvaleusis Maury; figured specimen : alt. 36 mm. ; page 38. 



