REFERENCE TO PLATES. 185 



FIGURE. PAGE. 



17. Helcioniscus ornatus Dillw. Yoy. E. & Ter., . . 137 



20-22. Helcioniscus oruatus v. incoDspicuus (luctuosa Gld.). 



Expl. Exped., 138 



23, 24. Helcioniscus denticulatus Martyn. Uuiv. Conch., . 138 



PLATE 69. 



25-28. Helcioniscus radians Gm. Original, . . .139 



29-31. Helcioniscus radians v. decora Ph. Abbild., . . 140 

 32, 33. Helcioniscus radians v. affinis Rv. Conch. Icon., . 140 

 34-36. Helcioniscus radians v. earlii Rv. Original, . .140 



37. Helcioniscus radians Gm. Original, . . . .139 



38, 39. Helcioniscus radians v. pholidota Less, (floccata 



Reeve). Conch. Icon., . . . . . . 140 



PLATE 70. 



40-42. Helcioniscus illuminatus Gld. U. S. Exped., . .142 

 43, 44. Helcioniscus stelliferus Gm. Conch. Icon., . . 141 



45. Helcioniscus stelliferus. Q. & G., 141 



46-48. Helcioniscus olivaceus Hutt. Original, . . .141 

 49. Helcioniscus traraoserica Mart. Conch. Icon., * . . 142 

 50-52. Helcioniscus tramoserica Mart. Original, . .142 



PLATE 71. 



53-55. Helcioniscus limbatus Ph. Abbild., . . .143 



56. Helcioniscus limbatus Ph. Original, . . . .143 



57, 58. Helcioniscus araneosa Rv. Conch. Icon., . . .144 

 59, 60. Helcioniscus cernicus H. Ad. P. Z. S., . . . 149 

 61, 62, 64. Helciouiscus eucosmius Pils. (variegata Rv. . 



Conch. Icon., .148 



63. Helcioniscus eucosmius Pils. Original, . . . .148 



PLATE 72. 



65-69. Helcioniscus rota Gm. Original, .... 144 

 70,71. Helcioniscus petalata Rv. Couch. Icon , . . . 145 

 72, 73. Helcioniscus luzonica Rv. Conch. Icon., . . . 145 

 74, 75. Helcioniscus scalata Rv. Conch. Icon., . . .145 

 76, 77. Helcioniscus rota v. orientalis. Original, . . . 146 

 78-80. Helcioniscus rota v. discrepans Pils. Original, . . 146 



PLATE 73. 



81-84. Helciouiscus nigroliueatus v. divergens. Original, . 134 



5-87. Helcioniscus lineatus Lmk. Deless., . . .153 



88, 89. Helcioniscus dims Rv. Conch. Icon., . . . 153 



90-92. Acimea araneosa Gld. U. S. Exped., . . .170 



93, 94. Acmsea onychina var. noronhensis Smith. Lin. Soc. J., 167 



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