202 



GENERIC INDEX. 



Loligopsis, Lam 9 



Lucina, Brug 168 



Lunatia, Gray 59 



Lyonsia, Turton , 134 



Macoma, Leach 151 



Mactra, Linn 144 



Mamma, Klein 60 



Mangelia, Risso 51 



Margarita, Leach 87 



Marginella, Lam 53 



Marsenina, Gray 62 



Martesia, Leach 127 



Menestho, Moll 69 



Mercenaria, Schuni 158 



Mitra, Humph 53 



Modiola, Larn 186 



Montacuta, Turton 172 



Murex, Linn 19 



Mya, Linn 140 



Mysia, Leach 170 



Mytilus, Linn 185 



Nassa, Mart 32 



Natica, Aclanson 58 



Nesera, Gray 141 



JSTeverita, Risso 60 



Nucula, Lam 180 



Obeliscus, Humph 64 



Octopus, Cuvier 8 



Odostomia, Flein. 66 



Oliva, Brug 45 



Ominastrephes, Orb 11 



Ony chia, Lesueur 11 



Onychoteuthis, Licht 10 



Ostrea, Linn 192 



Pandora, Brug 135 



Panopasa, Menard 137 



Patella, Linn 94 



Pecten, Mull 195 



Pectunculus, Lam 180 



Pedicularia, Swn 37 



Periploma, Schum 133 



Petricola, Lam 161 



Philine, Ascan 105 



Pholas, Linn 125 



Pinna, Linn 191 



Pleuromeris, Conr. 167 



Pleurotoma, Lam 47 



Pleurotomella, Yerrill 51 



Plicatula, Lam 198 



Polycera, Cuv Ill 



Porcellana, Rumph 55 



Psyche, Rang 121 



Ptychatractus, Stimp 21 



Purpura, Brug 36 



Pyrula, Lam 23 



Raeta, Gray 146 



Ranella, Lam 20 



Rhynchonella, Fischer 199 



Ringicula, Desh 100 



Rissoa, Frem 82 



Rissoella, Gray 85 



Rocellaria, Bellev 128 



Saxicava, Bellevue 137 



Scalaria, Lam 76 



Scaphander, Mont 105 



Semele, Schum 154 



Sepiola, Rondelet 11, 14 



Serripes, Beck 176 



Sigaretus, Lain 61 



Siliqua, Miihlf. 143 



Siliquaria, Schum 143 



Skenea, Flem 86 



Solemya, Lam 138 



Solen, Linn 142 



Spirialis, E. and S 122 



Spirula, Lam 15 



Strigilla, Turton 151 



Strombus, Linn 17 



Sty lifer, Brod 70 



Styliola, Les 121 



Sycotypus, Browne 22 



Tapes, Muhlfeldt 161 



Tellidora, Morch 153 



Tellina, Linn 148 



Terebratulina, Orb 199 



Teredo, Linn 129 



Tergipes, Cuv 116 



Thracia, Leach 134 



Tornatella, Lam 99 



Trichotropsis, Brod. and Sowb. 22 



Triforis, Desh 72 



Tritonium, Fabr 28 



Trivia, Gray 55 



Troplion, Mont 27 



Turbo, Linn 87 



Turbonille, Risso 64 



Turritella, Larn 73 



Turtonia, Hanly 171 



Urosalpinx, Stimp 19 



Utriculus, Brown 103 



Velutina, Blain 62 



Vermetus, Adans 74 



Voluta, Linn 53 



Volva, Bolten 56 



Xylotrya, Leach 132 



Yoldia, Moll 183 



Zirphsea, Leach 127 



