Homalogyra, 85. 
Hydrobia, à. 
Hydrocena. S5. 
Idalia, 100. 
Idiosepius, 175. 
Inioteuthis, 172. 
Inoceramus, 158. 
Ischnochiton, 31. 
Ismenia, 56. 
Isocardia, 139. 
Janthina, 86. 
Janus, 101. 
Jeffreysia, 85. 
Jouannetia, 145. 
Kellya, 140. 
Lacuna, 85. 
Læocochlis. $6. 
Lamellaria, 86. 
Lamellibranchia, 111. 
Lanistes. 84. 
Lasæa, 140. 
Leachia, 172. 
Leda, 156. 
Lepeta, 82. 
Lepidomenia, 56. 
Lepidoteuthis, 151. 
Leptoconchus. 72. 
Leplon, 140. 
Lima, 158. 
Limacina, 95. 
Limapontia, 102. 
Limax, 105. 
Limnæa, 105. 
Limopsis, 137. 
Lithoglyphus, 85. 
Litiopa, 85. 
Littorina, 85. 
Lituitidæ, 169. 
Lobiancoia, 102. 
Lobiger, 95. 
Loligo, 173. 
Loligopsis, 172. 
Loliolus, 175. 
Lophocercus, 95. 
Lucina, 1539 
Lutraria, 142. 
Lyonsia, 143. 
Lyonsiella, 145. 
Lyria, 69. 
Mac Gillivraya, 74. 
Mactra, 141. 
Magilus, 92. 
Margarita, 85. 
Marginella, 92. 
Marionia, 99. 
Marsenina, 86. 
Mathilda, 88. 
Melampus, 105. 
Melania, 86. 
MOLLISQUES. 
Melibe, 99. 
Mitra, 92. 
Modiolaria, 157. 
Modulus, 86. 
Mülleria, 85. 
Monopleura, 142. 
Montacutla, 159. 
Murex, 92. 
Mutela, 140. 
Mya, 142. 
Myacea, 142. 
Mycetopus, 140. 
Myochama, 145. 
Myopsida, 172. 
Mytilacea, 137. 
Mytilus, 157. 
Narica, 88. 
Nassa, 92, 
Nalica, 86. 
Nautilus, 169. 
Neomenia, 55. 
Neomenioida, 55. 
Nerincidæ, Sû. 
Neritina, K5. 
Notarchus, 96. 
Notobranchæn, 97. 
Nucula, 156. 
Nudibranchi?, 9. 
Octopoda, 172. 
Octopus, 17 
Odostomia, S7. 
Œgopsida, 17? 
Oliva, 92. 
Olivella, 92. 
Omalonyx, 40. 
14. 
Ommatostrephes, 171. 
Oncidiopsis, 86. 
Oncidium, 105. 
Onychoteuthis, 172. 
Oocorys, 88. 
Opisthobranchia, (5. 
Orpiella, 105. 
Orthoceratidæ, 169. 
Ostrea, 138. 
Otina, 105. 
Paludina, 84. 
Pandora, 113. 
Paramenia, 55. 
Parmacella, 105. 
Parmarion, 40. 
Patella, 82. 
Pecten, 138. 
Pectinibranchia, 84. 
Pectunculus, 137. 
Pedipes, 105. 
Pelta, 95. 
Peraclis, 95. 
Perna, 138. 
Peronia., 105. 
