EXPLANATION OF PLATES. 
FIGURE. PAGE. 
3. Trochus (Ataphrus) Kerri, Gabb. Cret., N. Carolina, . 314 
64. Trochus (Trochiscus) Norrisii, Sowb. California, . 315 
65. Trochus (Photinula) teeniata, Wood. Malouin Is..7;.<¢. B15 
66. Trochus (Chrysostoma) Nicobaricus, Gmelin. Philip., 315 
67. Margarita helicina, Fabr. Boreal Seas, ; 315 
68. Margarita (Macheroplax) striata, Leach. Boreal. Seas, 315 
69, 70. Margarita (Margaritella) flexistriata, Evans and 
Shumard. Cretaceous, United States, : . 315 
Tl. Trochus (Leucorhynchia) Caledonica, Crosse. New 
Caledonia, ‘ ; 314 
72. Vitrinella anomala, WVOrb. Cuba, .. 316 
73. Stomatella imbricata, Lam. Torres Sts., 316 
74. Stomatella Cumingii, A. Ag, Philippines, 316 
75. Stomatia (Microtina) tuberculata, Ads, Philippines, 317 
76. Stomatia (Gena) striatula, Ads. Philippines, 315 
17, 78. Phaneta Everetti, H. Ad. Borneo, . 317 
79, 80. Broderipia iridescens, Brod. Polynesia, . ; 318 
81. Trochus (Forskalia) fannulum,Gmel. Mediterranean, . 312 
82. Trochus (HKutrochus) jujubinus, Linn. Australia, 312 
PLATE 82. 
84. Pleurotomaria Quoyana, Fischer and cheapie West 
Indies, . 818 
85. Pleurotomaria (Pty chomphalus) striatus, son Pale- 
ozoic, England, : . old 
86. Murchisonia intermedia, Verneuil. Palwozoic , Europe, 319 
87. Porcellia Puzosi, Leveillé. Carb., Tournay, . 319 
88. Polytremaria catenata, Koninck. Carboniferous, Eur., 319 
89. Catanostoma clathratum, Sandberger. Devonian, Eur., 319 
90. Trochotoma Humbertina, dOrb. Jurassic, Eur., 320 
91. Ditremaria quinquecincta, Ziet. Coral Rag, Natheim, 320 
92. Scissurella Bertheloti, Webb. Canaries, . . 321 
93. Scissurella (Schizotrochus) crispata, Flem. England, 321 
94. Seguenzia formosa, Jeffreys. North Atlantic, West 
Indies, etc., 321 
95. Bellerophon striatus, d’Archiac. Pal. , Europe, . 322 
96, 9T. Bellerophon (Warthia) brevisinuata ,Waagen. Salt 
Range, India, ' ... ; . 322 
98, 99. Bellerophon (Mogulia) regularis, ‘Waagen. Salt 
Range, India, . 322 
ay Le Bucania expansa, Hall. Trenton croup, New York, 323 
, 3. Bucania (Tropidodiscus) curvilineata, Conr. Sil., 
Dev., New York, . 323 
4. Bucania (Euphemus) Indicus, Waagen. Salt R ange, 
India, : : - - 323 
