EXPLANATION OF PLATES, 411 
FIGURE. PAGE. 
85. Velutina (Amplostoma) auriforme, Stol. Cret., India, . 208 
86. Velutella flexilis, Mont. Northern Europe, ; . 208 
87. Vanikoropsis Tuomeyana, Meek and Worthen. Cret., 
Judith River, . é ; . 210 
88, 89. Ophileta (Discohelix) foliacea, Phil. Sicily, . . 220 
PLATE 65. 
90. Vanikoro cancellata, Chemn. Philippines, . : . 210 
91. Crepidula Peruviana, Lam. Peru, : . 212 
92. Crepidula (Ianacus) unguiformis, Lam. United States, 213 
93. Crepidula (Ergza) plana, Ad. and Reeve, . : . 213 
94, es Berthilinea elegans, Crosse. Paris basin, : . 214 
96, 97. Spiricella unguiculus, Rang. Miocene, France, . 215 
98, 99. Amathina tricarinata, Chemn. India, . 215 
100, 1, 2. Hipponyx rnd [es Lam. ; with its shelly base 
(2). Eocene, Paris, . 215 
3, 4. Hipponyx (Amalthea) conica, Sehuin:, with base, . 215 
5, 6. Gyriscus Jeffreysianus, Tiberi. Mediterranean Sea, 217 
7. Platyschisma Uchtensis, Keyserling. Silur., Europe,. 218 
8. Architea delicatum, Phil. Norway, . ; : . 218 
9. Straparollus qualteriatus, de Verneuil. Pal., Europe, 218 
0 
10. Straparollus (Maclurea) magna, Lesueur. Chazy gr., 
United States, . . : . 219, 224 
11. Straparollus (Schizostoma) Puzosii, de Verneuil. Pal; 
Europe, : . 219 
12. Helicocryptus pusillus, VOrb. Paleozoic, Europe, epeils 
13. Adeorbis subcarinatus, Mont. Europe, ; #219 
14. Omalaxis supranitida, Wood. Northern Europe, . 219 
15, 16. Homalogyra atomus, Phil. Mediterranean, Norway, 220 
17, 18. Discohelix zanclea, Phil. Pliocene, Europe, . . 220 
19. Ophileta levata, Hall. Paleozoic, New York, . . 220 
20. Eecyliomphalus serpula, de Koninck. Pal., Europe, . 220 
21. Straparollus calear, d’Orb. Pal., Europe, . : - 218 
PLATE 66. 
22, 23. Galerus Chinensis, Linn. China, . - ou 
24, 25. Infundibulum spirata, Forbes. W. Coast N. America, 211 
26. Infundibulum (Haliotidea) dilatata, Sowb., . . 212 
27. Calyptrea Martiniana, Reeve. Philippines, i . 212 
28. Crucibulum rudis, Brod. W. Coast Central America, . 212 
29. Crucibulum (Dispotea) striata, Say. United States, . 212 
30. Capulus Ungaricus, Linn. England, . 5 : : 213 
31, 32. Onustus solaris, Linn. Malacea, ‘ i . 216 
33. Xenophora conchyliophora, Born. West Indies, St I@16 
34. Solarium perspectivum, Linn. Amboina, . . 217 
35. Solarium (Torinia) variegatum, Lam. Philippines, 217 
