530 



MOLLUSCA — BRACHIOPODA 



Pupilla, 443 



Pupillaea, 4O6 



Fupina, 157, 266, 309, 318-327, 4U 



Pupinella, 318, 4^4 



Purpura^ 423 ; operctilum, 269 ; ero- 

 sion, 276 ; P. coronata, 367 ; lapillus, 

 feeding on 3Iytilus, 60 ; on oysters, 

 111 ; protective coloration, 69; vari- 

 ation, 90 ; egg-capsules, 124 ; time of 

 breeding, 129 ; distribution, 363 n, 



Piirpuroidea, 4^3 



Pusionella, 426 



Pygocardia^ 451 



Pygope, 497 



Pyramidella, 422 



Pyramideliidae, 262 



Pyrazus, 50, 416 



Pyrgina, 330 



Pyrgitla, 4I0 



Pyrochilus, 441 



Pyrolofusus, 423 



Pyrula (= Pirula), 419, 420; spawn, 

 125 ; operculum, 269 



Pythina, 453 



QUENSTEDTIA, 456 



Quoyia, 260, 417 



R ACHTGLOSSA. 220, 4^^ ; eggs, 124 



Pachis, 329-335, 441, 442 



BadiolUes, 456 



Radius, 419 



Badsia, 403 



Radula, 213 f . ; of Littorina, 20; of 



Cyclophorus, 21 ; of parasitic Mol- 



lusca, 79 

 Raeta, 454 

 Ranella, 256, 420 

 Range of distribution, 362 f . 

 Bangia, 15, 453 

 Banularia, 420 

 Bapa, 423 

 Bapana, 423 

 Baphaulus, 305, 309 

 Bathouisia, 316, 440 

 Rats devouring Mollusca, 57 

 Bealia, 316, 327, 414 

 Bechizia, 411 

 Rectum, 241 

 Begistoma, 414 

 Relationship of Mollusca to other 



groups, 5 

 Benssoellaria, 512 

 Reproductive activity of oyster, 112 ; 



system in Mollusca, 123, 134 f. 

 Bequienia, 269, 455, 455 

 Respiration, 150 f. 

 Betzia, 508 

 Bevoilia, 331, 414 

 Beymondia, 332 

 Rhahdoceras, 398 

 Bhagada, 311, 324 



Bhenea, 325, 440 



Bhinobolus, 504 



Bhiostoma, 247, 266, 309, 414 



Rhipidoglossa, 225, 405 



Bhizochilus, 75, 423 



Bhodea, 356, 441 



Bhodina, 307, 310, 442 



Bhynchonella, 466, 470, 471, 472, 474, 

 483, 487 ; distribution, 487 ; fossil, 

 492, 497, 499, 505; stratigraphical 

 distribution, 506, 507, 508, 511 



Rhynchonellidae, 487, 501, 505 -, strati- 

 graphical distribution, 507, 508, 511 



Bhysota, 67, 310, 314, 316, 319, 440 



Bhytida, 319-326, 333, 359, 440 ; habits, 

 54 ; radula, 232 



Billya, 442 



Bimella, 4I8 



Bimula, 265, 4O6 



Bingimda, 430 ; radula, 230 



Bisella, 413 



Bissoa, 415 



Bissoina, 415 



Bohillardia, 11 



Bochehrunia, 331, 414 



Rock-boring snails, 49 



Bolleia, 349 



Bossia, 389 



Bostellaria, 4IS 



Rudistae, 456 



Bumina, 260, 442 



Buncina, 431 ; protective coloration, 73 



Sab ATI A, 430 



Sactoceras, 394 



Sagda, 348-351, 44I 



Sageceras, 398 



Salasiella, 353, 440 



Salivary glands, 237 



Sandford, on strength of Helix, 45 



Sandwich islanders, use of shells, 99 



Sanguinolaria, 456 



Sarepta, 44'^ 



Sarmaticus, 409 



Satsuma, 314, 316, 441 



Saxicava, 447, 457 



Saxidomus arata, money made from, 97 



Scalaria, 247, 263, 411 ; radula, 224 



Scaldia, 452 



Scalenostoma, 422 



Scaliola, 415 



Scaphander, 428, 429, 430 ; radula, 

 231 ; gizzard, 238 



Scaphites, 399, 399 



Scaphopoda, 444 ; defined, 6 ; breath- 

 ing organs, 160 ; nervous system, 

 205 ; radula, 236 



Scaphula, 14, 305, 448 



Scarabus, 18, 278, 439, 439 



Scharff, R., on food of slugs, 31 ; on 

 protective coloration in slugs, 70 



Schasicheila, 347, 351, 354, 410 



