— 215 — 



Pomatiopsis ... . .97 



Pomplîolyx 49 



Poromya 162 



Porostomes 118 



Proctonotus 119 



Proneomenia 42 



Propilidium 93 



Protobranchia 161 



Psammobia 169 



PSEUDOLAMELLIBRANCHIA . . . 164 



Pteroceras 101 



Pterotrachea 107 



PULMONATA 120 



Pulsellum . 131 



Puncturella 93 



Pupa 123 



Pupillia . 93 



Purpura 103 



Pustularia 98 



Rhachiglossa 104 



Rhipidoglossa 92 



Ringicula 109 



Rissoa 96 



Rossia 205 



Runcina 110 



Saxicava 170 



Scalaria 99 



Scaphander 110 



SCAPHOPODA 126 



Scissu relia 93 



Scrobicularia 168 



Scurria 91 



Scutum 93 



Scyllœa 116 



Sepia 206 



Sepiadariidse 205 



Sepiola 205 



Sepioteuthis 206 



Septibranchia 162 



Silenia 162 



Siliquaria 100 



Siphonaria 122 



Siphonodentalium 131 



Skeneidee. ....... 97 



Solarium 99 



Solen 170 



Solenocurtus 170 



Solenomya 162 



Spirula 205 



Spirulirostra 178 



Spondylus ....... 165 



Spongiobranchsea 113 



Stenoglossa 104 



Stiliger 120 



Stolotheuthis 205 



Stomatella 94 



Streptoneura 189 



Strombus 101 



Struthiolaria 101 



Stylifer 99 



Stylommatophora 123 



submytilacea 166 



Succinea . 123 



T^NIOGLOSSA 102 



Taonius 205 



Tapes 168 



Tectibranchia 108 



Tellina 168 



Tellinacea 168 



Terebellum 101 



Terebra 104 



Teredo 171 



Testacella 124 



Tethys 116 



Tetrabranchia 203 



Thecosomes 111 



Thracia 181 



Thyca 97 



Thysanoteuthis 204 



Titiscania 94 



Tornatina 109 



TOXOGLOSSA 104 



Tremoctopus 207 



Tridacna 169 



15 



