LIST OF SPECIES. 



Pusilla, Vertigo, 299 

 Pusillum, Pisidium, 88 

 Pusio, Pecten, 33 

 Pustulata, yEolis, 

 Puteolus, Lacuna, 395 

 Putris, Succinea, 316 

 Pygmasa, Helix, 281 

 Pygmasa, Leda, 5 

 Pygmaea, Nassa, 516 

 Pygmaea, Vertigo, 300 

 Pyramidata, Clio, 584 



Quadrangulata, Doris, 

 Quadrata, Philine, 572 

 Quadricornis, Idalia, 

 Quadrilineata, Polycera, 



Radiatulus, Zonites, 258 

 Repanda, Doris, 

 Reticulata, Mangilia, 534 

 Reticulata, Nassa, 513 

 Reticulata, Rissoa, 404 

 Reticulatum, Cerithium, 444 

 Retroversus, Spirialis, 583 

 Revelata, Helix, 282 

 Rhombea, Crenella, 24 

 Ringens, Pupa, 289 

 Rissoides, Odostomia, 474 

 Rivicola, Sphaerium, 84 

 Rolphii, Clausilia, 306 

 Rosea, Emarginula, 330 

 Roseum, Pisidium, 89 

 Rostrata, Ne.3era, 182 

 Rota, Homalogyra, 386 

 Rotundata, Diplodonta, 65 

 Rotundata, Helix, 283 

 Rotundata, lanthina, 358 

 Ruber, Chiton, 197 

 Rubra, Barleeia, 425 

 Rubra, Lasaea, 75 

 Rudis, Littorina, 389 

 Rudis, Pinna, 31 

 Rufa, Odostomia, 497 

 Rufa, Pleurotoma, 547 

 Rufescens, Helix, 284 

 Rufibranchiata, ^Eolis, 

 Rugosa, Clausilia, 307 

 Rugosa, Saxicava, 157 

 Rugulosa, Pleurotoma, 539 

 Rupestris, Helix, 285 



Sanguinea, ^ 

 Sarsii, Lima, 44 

 Scabra, Philine, 569 

 Scabridus, Chiton, 200 

 Scalaris, Odostomia, 496 

 Scillae, Odostomia, 500 



Secale, Pupa, 290 

 Semistriata, Rissoa, 423 

 Septangularis, Pleurotoma, 546 

 Septemradiatus, Pecten, 36 

 Sericea, Helix, 286 

 Serpuloides, Cyclostrema, 337 

 Siliqua, Solen, 154 

 Similis, Hydrobia, 427 

 Similis, Pecten, 40 

 Smaragdina, ^Eolis, 

 Solida, Clausilia, 309 

 Solida, Mactra, 108 

 Soluta, Rissoa, 422 

 Sordida, Natica, 372 

 Sparsa, Doris, 

 Spinifer, Lucina, 61 

 Spiralis, Odostomia, 49 ->. 

 Spirorbis, Planorbis, 225 

 Squalida, Tellina, 95 

 Squamosum, Lepton, 76 

 Stagnalis, Limnaea, 213 

 Stenostoma, Eulima, 464 

 Stipata, yolis, 

 Striata, Rissoa, 417 

 Striatula, Rissoa, 400 

 Striatus, Pecten, 39 

 Striatus, Trochus, 349 

 Striolata, Pleurotoma, 536 

 Stultorum, Mactra, in 

 Sub-auriculata, Lima, 46 

 Sub-carinatus, Adeorbis, 438 

 Subfuscus, Arion, 185 

 Subfusiformis, Cadulus, 185 

 Suborbicularis, Kellia, 73 

 Substriata, Montacuta, 69 

 Substriata, Vertigo, 301 

 Sub-truncata, Mactra, no 

 Subulata, Eulima, 465 

 Sulcata, Astarte, 50 

 Sulcata, Nucula, i 

 Sulcatulum, Lepton, 78 

 Supranitida, Aclis, 367 



Tarentinum, Dentalium, 188 

 Tellinella, Psammobia, 139 

 Tenella, Lacuna, 394 

 Tenellus, Limax, 237 

 Tentaculata, Bithynia, 431 

 Tenuis, Nucula, 4 

 Tenuis, Scrobicularia, 102 

 Tenuis, Tellina, 93 

 Terebra, Turritella, 452 

 Teres, Mangilia, 530 

 Testae, Pecten, 38 

 Testudinaria, Doris, 

 Testudinalis, Tectura, 319 

 Tetragona, Area, 14 



