14 



More angular and more depressed than H. orbiculata, and 

 slightly striated. 



71. H. vestita (pi. i. f. 42.) Guild. M. S. 



T. globosa, tenui, concentrice lyrata, parva ; apertura semi- 

 lunar! ; labio externo tenui. 



Globose, thin, concentrically ribbed, small ; aperture semi-lunar ; 

 outer lip thin. North America. 



72. H. rugosa. (pi. iii. f. 132.) Pfeiffer. Wiegmann Archiv. 

 fiir Natiirgesch. Band i. 1839. 



" T. depressa, subtus convexiuscula, rubello-succinea ; anfract. 

 5, elegantissime oblique rugosis; callo columellari tenui, albido; 

 labro albido, incrassato, prope angulum columellarem sub-dentato; 

 apertura ovata." 



Concentrically ribbed, like H. vestita, but depressed, with the 

 margin of the aperture thickened, and slightly angulated at the 

 base of the columella. 



The author is unable to identify the following, the figures of 

 which are copied from the works referred to . — 



73. H. substriata (pi. i. f. 22.) Gray Zool. Journ. i. p. 66. 

 W. I. 



■ unifasciata (pi. i. f. 21.) Gray Zool. Journ. i. p. 69. 



• flammeata. (pi. i. f. 37, 38, 39.) Quoi. Voy. Astr. 



• taeniata. (pi. ii. f. 49, 50, 51.) Ib. 



• lens. (pi. i. f. 48,) Lea. Obs. 



■ striata. Lam. Hist. Nat. vi. p. 183. 

 sordida. King. Zool, Journ. 



EXPLANATION OF THE PLATES. 



74. 

 75. 

 76. 

 77. 



HELICIN^E. 



1. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 11. 

 12. 

 13. 

 14. 

 15. 

 16. 

 17. 

 18. 



Figures of the natural size 



H. Aurantia. Sp. 1. 

 — - , var. 



— Jamaicensis. 2. 



— — — — , var. 



— hsemastoma. 3. 

 , var. 



— Brownii. 14. 



— , var. 



— festiva. 12. 



— Sagra. 9. 



— maxima. 37. 



— major. 13. 

 , var. 



— pulcherrima. 1 1. 



— pulchella, 18. 

 , var. 



— Tankervillii. 19. 



— virginea. 20. 



19. H. 



20. — 



ambeliana. 38. 

 costata. 22. 



21. — unifasciata. 74. 



22. — sub-striata. 73- 



23. — fulva. 61. 



24. — globosa. 21. 



25. — Zephyrina. 39. 



26. — ambeliana. 38. 



27. — Zephyrina, var. 39. 



28. — oresigena. 64. 



29. — Brasiliensis. 62. 



30. — sylvatica. 63. 



31. — castanea. 67. 



32. — castanea. 



33. — orbiculata. 65. 



34. — orbiculata. 



35. — cornea. 66. 



36. 



