202 



GENERIC INDEX. 



Loligopsis, Lam 9 



Lucina, Brug 108 



Luuatia, Gray T)!) 



Lyonsia, Turton 134 



Macoma, Leach 151 



Mactra, Linn 144 



Mamma, Klein 60 



Maugelia, Risso 51 



Margarita, Leach 87 



Marginella, Lam 53 



^larsenina, Gray 03 



Martcsia, Leach 127 



Meuestho, MoW 09 



Mercenaria, Schum 158 



]\Iitra. Ilumpli 53 



IModiola, Lam 180 



Moutacuta, Turton 173 



Mnrex, Linn 19 



Mya, Linn 140 



Mysia, Leach 170 



Mytilus, Linn 185 



Nassa, Mart 32 



Natica, Adanson 58 



Nea?ra, Gray 141 



Neverita, Risso 60 



Nucula, Lam 180 



Obclisciis, Ilnmpli 04 



Octopus, Cnvier 8 



Odostomia, Fleni 00 



Oliva, Brug 45 



Ommastrcplics, Orb 11 



Onychia, Lesucnr 11 



Ouychotenlliis, Licht 10 



Ostrea, Linn 193 



Pandora, Brug 135 



Panopa?a, IMenard 137 



Patella, Linn 94 



Pecten, ]Mull 195 



Pectunculus, Lam 180 



Pedicularia, Swn 37 



Periploma, Sebum 133 



Petricohij Lam 101 



Philine, Ascan 105 



Pholas, Linn 125 



Pinna, Linn 191 



Pleuromeris, Conr 167 



Pleurotoma, Lam 47 



Pleurotomella, Verrill 51 



Plicatula, Lam 198 



Polycera, C- uv Ill 



Porcellana, Rumph 55 



Psyche, Rang 131 



Ptychatractus, Stimp 21 



Purpura, Brug 36 



Pyrula, Lam ,.. 23 



Rfeta, Gray 146 



Ranella, Lam 20 



Rhynchouella, Fischer 199 



Ringicula, Desh 100 



Rissoa, Frem 82 



Rissoella, Gray 85 



Rocellaria, Be'llev 128 



Saxicava, Bellevue 137 



Scalaria, Lam 70 



Scaphander, Mont 105 



Semele, Schum 154 



Sepiola, Rondelet 11, 14 



Serripes, Beck 170 



Siii'aretus, Lam 01 



Siiicpia, Miihlf. 143 



Siliquaria, Schum 143 



Skenea, Flem 80 



Solemya, Lam 138 



Soleu, Linn 143 



Spinalis, E. and S 123 



Spirula, Lam 15 



Strigilla, Turton 151 



Strombns, Linu 17 



Stylifer, Brod 70 



Styliola, Les 121 



Sycotypus, Browne 23 



Tapes, ]\ruhlfeldt 101 



Tellidora, Morch 153 



Tellina, Linn 148 



Terebratulina, Orb 199 



Teredo, Linn • 129 



Tergipes, Cuv • 116 



Thracia, Leach 134 



Tornatella, Lam 99 



TricbotroiK-^is, Brod. and Sowb. 23 



Tritbris, Uesh 72 



Tritonium, Fabr 28 



Trivia, Gray 55 



Trophon, Mont 27 



Turbo, Linu 87 



Turbonille, Risso 04 



Turritella, Lam. 73 



Turtonia, Hauly 171 



Urosalpinx, Stimp 19 



Utriculus, Browu 103 



Velutina, Blain 02 



Vermetus, Adaus 74 



Voluta, Linn 53 



Yolva, Bolteu 50 



Xylotrj'a, Leach 133 



Yoldia, Moll 183 



Zirphsea, Leach 127 



