5i6 



MOLLUSCA — BRACHIOPOD A 



Brachytrema, 4-Z7 

 Brackish-water species, 14 

 Branchiae, 151, 153, 164 

 Branchial siphon, 155, 164, 173 

 Braun, on self -impregnation, 44 

 Breathing organs — see Respiration, 



Branchiae 

 Brechites, 459 



Breeding, periodicity in, 129 

 Bi'oderipia, 408 

 Brotia, 305 

 Browjiia, 133 

 Buccinanops, 4^3 

 Buccinopsis, 424 ; radula, 221, 222 ; 



egg-laying, 128 

 Biiccinum, 6, 424; radula, 217 ; mon- 

 strosity, 251 ; breeding, 129 ; osphra- 



dium, 195 ; spawn, 126 

 Buliminus, 24, 278, 285, 295 f., 316, 



331, 339, 442 ; protective habits, 70 ; 



B. pallidior^ 38 

 Bitlimiilus, 278, 334, 339-359, 44^; 



jaw, 211, 233 ; radula, 233 ; varia- 

 tion, 87 

 Bulimus, 278, 342-359, 355, 441', 



radula, 233 ; egg, 124 

 BuUnus — see Isidora 

 Bulla, 428, 430 

 Bullia, 155, 4^3; habits, 192; foot, 



198 ; radula, 221 

 Bulloidea, 429 

 Burrowing Mollusca, 446 

 Burying propensities of Mollusca, 27, 



41 

 Busycon, 4^4 ', money made from, 97 ; 



egg-capsules, 125 — see Fulgur 

 Butterell, Mr., on habits of Testacella, 



52 

 Byssocardium, 455 

 Byssus gland, 201 



Cad LIN A, 434 



Cadoceras, 393 



Cadiilus, 376, 445 



Caecilianella, 44^ ', habitat, 48 ; eyes, 



186 

 Calcarella, 133 

 California, land Mollusca, 280 

 Calliostoma, 4O8 ; jaws, 212 

 Callistochiton, 403 

 CallocMton, 403 

 Callogaza, 4O8 

 Callonia, 442 

 Callopoma, 409 



Calma, protective coloration, 74 

 Calybium, 410 

 Calycia, 320, 442 

 Calycidoris, 434 

 Calyptraea, 248, 412 

 Camaena, 305, 306, 315, 316, 44I 

 Cambrian, Mollusca of the, 2 

 Camitia, 409 



Campaspe, 433 



Camptoceras, 302 



Camptonyx, 278, 302, 439 



Campylaea, 285, 289 f., 293, 44I 



Canal, 155 



Cancellaria, 4^6 



Canidia, 16, 305, 423 



Cannibalism in snails and slugs, 32, 

 33 



Cantharidiis, 4O8 



Cantharus, 275 ; radula, 222 



Caprina, 456 



Caprotina, 456 



Capulus, 412 



Caracolus, 347-351, 441 



Carbonicola, 451 



Cardiacea, 454 



Cardiapoda, 4^1 



Cardilia, 454 



Cardinal plate, 500 



Cardinal process, 497, 501 



Cardinalia, 4O8 



Cardinia, 451 



Cardita, 273, 451 



Carditella, 451 



Carditopsis, 451 



Cardium, 6, 273, 455, 455 ; C. edule, 

 12, 164 ; modifications, 12 ; variation, 

 84, 91 ; nervous system, 207; distri- 

 bution, 292, 297 



Carelia, 327, 443 



Carinaria, 9, 422, 422; foot, 200 



Carinifex, 439 



Carolia, 448 



Cartiisiana, 296 



Carychium, 18, 439 



Caryodes, 325, 359, 441 



Casella, radula, 230 



Caspia, 12, 297 



Caspian Sea, fauna, 12, 297 



Cassidaria, 420 



Cassidula, 18, 278, 439, 439 



Cassis, 255, 420 ; radula, 223 



Castalia, 344, 452 



Cataulus, 157, 266, 304, 414 



Caterpillars mimicking Clausilia, 68 



Cathaica, 316, 441 



Catinella, 443 



Cavolinia, 158, 436 ; eyes, 186 



Cecina, 414 



Cenia, 432 ; breathing, 152 



Centrodoris, 434 ; radula, 230 



Centronella, 499, 506, 508 



Cephalopoda, 378 f . ; defined, 5 ; ink, 

 65 ; egg-laying, 127 ; embryo, 133 

 branchiae, 168 ; osphradium, 195 

 foot, 200 ; nervous system, 206 

 jaws, 213 ; radula, 236 



Cepolis, 349-351, 441 



Cerastoma, 423 



Cerastus, 331, 441 



Cerata of Nudibranchs, 71, 159 



