320 



REFERENCE TO PLATES, VOL. XV. 



FIGURE PAOE 



28. Urocoptis assimilis Arango. Pilsbry, del 245 



29, 30. Urocoptis colorata Arango. J. de C. . 244 



31. Urocoptis colorata Arango. Pilsbry, del 244 



PLATE 57. 



32, 33. Urocoptis violacea Wr. Pilsbry, del 258 



34, 35. Urocoptis violacea Wr. Novit. Conch. 258 



36, 37. Urocoptis plumbea Wr. Novit. Conch 259 



38, 39. Urocoptis plumbea Wr. Pilsbry, del 259 



40. Urocoptis nubila Poey. Memorias 258 



41. Urocoptis affinis Pfr. Pilsbry, del 251 



42. 45. Urocoptis disco rs Poey. Pilsbry, del 250 



43. Urocoptis gonzalezi Pils. Pilsbry, del 248 



44. Urocoptis brevicervix Pils. Pilsbry, del 248 



45. Urocoptis discors Poey. Pilsbry, del 250 



46. Urocoptis coerulans incerta Arango. Helen Win- 



chester, del 254 



47. 49. Urocoptis discors lagunillensis Pils. Pilsbry, del. 250 



48. Urocoptis diaphana Wright. Pilsbry, del 251 



50, 51. Urocoptis crerulans Poey. Pilsbry, del 253 



52. Urocoptis unguiculata Arango. Pilsbry, del 249 



PLATE 58. 



53. Urocoptis obliqua Pfr. Novit. Conch 253 



54. 55. Urocoptis obliqua Pfr. Pilsbry, del ., 253 



56. Urocoptis ventricosa Gundl. Pilsbry, del 261 



57, 58. Urocoptis ventricosa var. abnormis Gundl. Pils- 



bry, del 262 



59, 60. Urocoptis ventricosa Gundl. Novit. Conch 261 



61, 62. Urocoptis producta Gundl. Pilsbry, del 265 



63, 64. Urocoptis producta Gundl. Conchyl. Cab.. ., 265 



65, 66. Urocoptis sanctaeannae Pils. Pilsbry, del 127 



67,68 (above fig. 70). Urocoptis garciana Wr. Pilsbry, 



del 232 



67, 68 (to the right of figs. 66 and 71). Urocoptis heyne- 



manni Pfr. Pilsbry, del 252 



69-71. Urocoptis scabrosa Gundl. Pilsbry, del 186 



PLATE 59. 



71-74. Urocoptis integra Pfr. Pilsbry, del 230 



75, 76, 82. Urocoptis fusif ormis Wr. Pilsbry, del 230 



77. Urocoptis hilleri Pfr. Pilsbry, del 263 



78. Urocoptis hilleri Pfr. Novit. Conch. 263 



79-81. Urocoptis angustior Wr. Pilsbry, del 229 



