202 



GENERIC INDEX. 



Loligopsis, Lam 



Lucina, Brug 1G8 



Lunatia, Gray 50 



Lyonsia, Turton 134 



Macoma, Leach 151 



Mactra, Linn 144 



Mamma, Klein GO 



Mangelia, Risso 51 



Margarita, Leach 87 



Marginella, Lam 58 



Marsenina, Gray G2 



Martesia, Leach 127 



Menestho, Moll (I!) 



Mercenaria, Schum 158 



Mitra, Humph 53 



Modiola, Lam 1 86 



Montacuta, Turton 172 



Murex. Linn 19 



Mya, Linn 140 



Mysia, Leach 170 



Mytilus, Linn 185 



Nassa, Mart 32 



Natiea, Adanson 58 



Nesera, Gray 141 



Neverita, Risso 60 



Nucula, Lam ISO 



Obeliscus, Humph G4 



Octopus, ( 'uvier 8 



Odostomia, Flem GG 



Oliva, Drug 45 



Ommastrephes, Orb 11 



Onychia, Lesueur 11 



< )n ychoteuthis, Licht 10 



Ostrea, Linn 192 



Pandora, Brug 135 



Panopsea, Menard 137 



Patella, Linn 94 



Pecten, Mull 195 



Pectunculus, Lam 180 



Pedicularia, Swn 37 



Periploma, Sebum 133 



Petricola, Lam 161 



Philine, Ascan 105 



Pholas, Linn 125 



Pinna, Linn 191 



Pleuromeris, Conr 167 



Pleurotoma, Lam 47 



Pleurotomella, Verrill 51 



Plicatula, Lam 198 



Polycera, Guv Ill 



Porcellana, Rumph 55 



Psyche, Rang 121 



Ptychatractus, Stimp 21 



Purpura, Brug 36 



Pyrula, Lam 23 



1 Ra?ta, Gray 146 



Ranella, Lam 20 



Rhynchonella, Fischer 199 



Ringicula, Desh 100 



Hissoa, Frem 82 



Rissoella, Gray. 85 



; Rocellaria, Bellev 128 



Saxicava, Bellevue 137 



Scalaria, Lam 76 



Scaphander, Mont 105 



Semele, Sebum 154 



Sepiola, Rondelet 11, 14 



Serripes, Beck 176 



Sigaretus, Lam 61 



Siliqua, Muhlf. 143 



Siliquaria, Schum 143 



Skenea, Flem 86 



Solemya, Lam 138 



Solen, Linn 142 



Spinalis, 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 



Trophon, Mont 27 



Turbo, Linn 87 



Turbonille, Risso 64 



Turritella, Lam 73 



Turtonia, Hanly 171 



Urosalpinx, Stimp 19 



Utriculus, Brown 103 



Velutina, Blain 62 



Vermetus, Adana 74 



Voluta, Linn 53 



Yolva, Bolten 5G 



Xylotrya, Leach 132 



Yoldia, Moll 183 



Zirphsea, Leach 127 



