CONTENTS. 



xvii 



Page 



60. Neritina - - - - 193 



61. Nerita - - - - 194 



62. Natica - - - - 195 



Family VI. — Janthinidcs - - 196 



63. Janthina - - - - 196 



Family VII. — Macrostomidce - - 197 



64. Sigaretus - - - - 197 



65. Stomatella - - - - 198 



66. Stomatia - - - - 198 



67. Haliotis - - - - 199 



Family VIII.— Plicacidce - - -202 



68. Tornatella - - - - 202 



69. Melampus - 203 



70. Pyramidella - - - - 203 



Family IX. — Scalaridce - 204 



71. Vermetus - 205 



72. Magilus - - - - 205 



73. Leptoconchus - 207 



74. Scalaria - - - - 207 



75. Rissoa - 209 



76. Delphinula ... 209 



Family X. — Turbinidce - - - 210 



77. Solarium - - - 210 



78. Rotella - - - - 211 



79. Trochus - - - - 211 



80. Monodonta - - - 214 



81. Turbo - - - - 214 



82. Planaxis - - - - 216 



83. Phasianella - - - 216 



84. Turritella - - - 217 



a 



