THE NAUTILUS. 79 



more gradually tapering spire, the lateral outlines of which are not 

 so deeply concave. 



Long. 24.5, diam. 7.5, ap. long. 6.3, ap. diam. 6.5, whorls 10. 



Long. 20.3, diam. 7.1, ap. long. 6.5, ap. diam. 6.9, whorls 7. 



Central Cuba ; Cerro de Guajahana near Caibarien in the Pro- 

 vince of Santa Clara. 



REFERENCE TO PLATES 1V-VII. 



Plate IV. 



Figs. 1, 5. Urocoptis villarensis n. sp. Page 42. 

 Figs. 2, 3, 6. Urocoptis proteus n. sp. Page 43. 

 Fig. 4. Urocoptis proteus castanea n. subsp. Page 44. 

 Figs. 7, 8. Urocoptis proteus robustaxis n. subsp. Page 44. 

 Figs. 9, 12. Urocoptis mayajiguensis n. sp. Page 45. 

 Figs. 10, 11. Urocoptis cioniscus n. sp. Page 46. 



Plate V. 



Figs. 13, 14. Urocoptis remediensis n. sp. Page 44. 



Fig. 15. Urocoptis remediensis var. a. Page 45. 



Fig. 16. Urocoptis remediensis var. b. Page 45. 



Figs. 17, 21. Urocoptis mayajiguensis fulva n. subsp. Page 45 



Figs. 18, 19, 20. Urocoptis transitoria n. sp. Page 46. 



Figs. 22, 23. Urocoptis mayajiguensis var. a. Page 45. 



Plate VI. 



Figs. 24, 25. Urocoptis turgida n. sp. Page 75. 

 Fig. 26. Urocoptis turgida var. a. Page 76. 

 Figs. 27, 30, 31. Urocoptis tuba n. sp. Page 78. 

 Figs. 28, 29, 34. Urocoptis dilatata n. sp. Page 47. 

 Figs. 32, 33. Urocoptis fallax n. sp. Page 47. 



Plate JIL 



Figs. 35, 36, 37, 38. Urocoptis alvearis n. sp. Page 78. 



Figs. 39, 40. Urocoptis uberrima n. sp. Page 76. 



Figs. 41, 42. Urocoptis dimidiata n. sp. Page 77. 



Figs. 43, 44. Urocoptis intuscoarctata n. sp. Page 76. 



Figs. 45, 46. Urocoptis dimidiata intermedia n. subsp. Page 77. 



