5i8 



MOLLUSCA — BRACHIOPODA 



Columhella, 4^3 ; radula, 222 

 Columbellaria, 420 

 Columhellina^ 4-20 

 Columnn, 328, 330, 443 

 ComineUa, 16, 424 

 Composition of shell, 252 

 Concha, 463 



Conchidmm, 497, 498, 500, 505 ; strati- 

 graphical distribution, 507, 508, 511 

 Concholepas, 267, 423 

 Co7iidea, 423 

 Conocardium, 455 

 Conorbis, 426 



Conus, 247, 275, 426 ; poisonous bite, 

 65 ; tooth, 66 ; shell, 69, 255, 260 ; 

 mimicked by Stromhus, 69 ; prices 

 given for rare, 121 ; spawn, 125 ; 

 radula, 218, 220; operculum, 269 

 Cookia, 409 

 Coptochilus, 314, 414 

 CoraUiopliaga^ 451 

 Coralliophila, 75, 423 

 Coralliophilidae, radula, 216 

 Corambe, 434 

 Corasia, 311, 319-321 

 Corbicula, 15, 288, 292 f., 433 

 Corbis, 452 

 Corbula, 456 

 Corilla, 303 

 Corona, 27, 442 

 Coronaria, 297 



Coryda, 346-351, 441 

 Coryphella, 432 

 Cosmoceras, 399 



Cowry used as money, 96 



Coyote trapped by Haliotis, 57 



Cranchia, 391 



Crania, 464, 467, 468, 469, 471, 472, 

 473, 475, 476, 477, 487; distribu- 

 tion, 485 ; fossil, 493, 494, 504 \ strati- 

 graphical distribution, 506, 507, 508, 

 510 



Craniidae, 487, 496, 504, 508 



Cranopsis, 265, 4O6 



Craspedochiton, 403 



Craspedopoma, 298, 414 



Craspedostoma, 4O8 



Crassatella, 451 



Cratena, 432 



Crawling of Helix, 45 



Cremnoconchus, 16, 302, 41^ 



Crenatula, 75, 449 



Crenella, 449 



Crenipecten, 450 



Crepidula, 248, 257, 412, 412 ; para- 

 sitic, 78 



Crepipatella, 248, 412 



Creseis, 436, 436 ; eyes, 186 



Crimora, 434 ; radula, 229 



Crioceras, 247. 399, 399 



Cristigibba. 311, 319, 320, 44I 

 Crossostoma, 4O8 



Crucibulum, 248, 412 

 Cryptochiton, 245, 371, 402, 404 

 Cryptochorda, 425 

 Cryptoconchus, 404 

 Cryptophthalmus, 430 

 Cryptostracon, 353, 441 

 Ctenidia, 151 — see Branchiae 

 Ctenopoma, 346-351, 414 

 CucuUaea, 274, 448 

 Cultellus, 457 

 Cuma, 423 

 Cumingia, 453 



Ciispidaria, 459 ; branchiae, 168 

 Cuvierina, 436, 436 

 Cyane, 410 



Cyathopoma, 247, 268, 314, 338, 414 

 Cyclas, 453 ; veliger, 132 ; ova, 146 ; 

 otocyst, 197 ; C. cornea, thread-spin- 

 ning, 29 ; distribution, 282 

 Cyclina, 454 

 Cyclobranchiata, 156 

 Cyclocantha, 409 

 Cyclomorpha, 414 

 Cyclonassa, 423 

 Cyclonema, 409 



Cyclophoridae, origin, 21 

 Cyclophorus, 302, 306-319, 329-334, 

 344, 352-358, 414 ; jaws, 212 ; radula, 

 21 

 Cyclostoma, 328, 331-338, 414, 414] 

 stomach, 239 ; vision, 184 ; osphra- 

 dium, 195 ; nervous system, 205 ; C. 

 elegans, 287, 288 



Cyclostomatidae, origin, 21 ; radula, 

 224 ; gait, 199 



Cyclostrema, 4O8 



Cyclosurus, 247, 337, 414 



Cyclotopsis, 338, 414 



Cyclotus, 296, 319, 320, 414 



Cylichna, 428, 430; radula, 215 



CylindreUa, 247, 260, 278, 343-355, 

 348, 442; monstrosity, 251, 252 



Cylindrellidae, radula, 233, 234 



CyJindrites, 430 



Cylindrobulla, 430 



Cylindromitra, 425 ; radula, 222 



Cymbium, 255, 367, 425 ; radula, 221 



Cymbulia, 437 



Cymbuliopsis, 437 



Cynodonta, 424 



Cyphoma, 419 



Ci/praea, 178, 419; prices given for 

 'rare, 122 ; mantle-lobes, 177, 178 ; 

 radula, 224 ; shell, 255, 260, 261 ; C. 

 moneta, 96 



Cypraecassis, 420 



Cypraedia, 419 



Cypraeovida, 419 



Cyprimeria, 454 



Cyprina, 451 



Cyrena, 15, 453 ; distribution, 285, 294 



Cyrenella, 453 



