INDEX 



607 



Corethraster, 298 



Corium (Moll.), 39 ; (Echin.), 414 



Corona, 339 



Coronaster, 299 



Corpus epitheliale, 171 



Corylocrinus, 332 



Coryptella, 13 



Costals (Crin.), 371 



Cranchia, 24 



Crassatella, 49 



Crassatellidce, 17 



Crenetta, 115 



Qrepidulidce, 138 



Cribrella, 299 



,, sexradiata, 506 

 Crinoidea, 302-316 ; arm, 372 ; arm, sec- 

 tion, 413 ; ovarial pinnule, section, 500 

 Qrioceras stage, 68 

 Crista acustica, 169 

 Cromyocrinus, 304 

 Crossaster, 298 

 Crotalocrinidce, 308 

 Crotalocrinus, 308 



,, pulcher, 373 



,, rugosus, arm disc, 372 



Cryptoblastus, 315 

 Oryptochiton, 41 

 Cryptodon Moseleyi, 50 

 Cryptoschisina, 315 

 Cryptozonia, 297 

 Crystalline stylet, 191 

 Ctenidium, 84, 85 

 Ctenodiscus, 296 



,, procurator, 296 



Ctenopidce, 102 

 Cucumaria, 287 



crocea, 502 



crucifera, cruciform body, 337 



doliolum, section, 517 



frondosa, 488 



Lacazii, 464 



loevigata, 502 



longipeda, "stool," 337 



minuta, 502 



planci, 287 

 Culcita, 297 

 Cultellus, 19 

 Cupressocrinus, 304 

 Ouspidaria, 21 

 Cuspidaridce, 21 

 Cuttlefish ( = Cephalopoda), 21 

 Cuvierian organs (Hoi.), 488 

 Cyathocrinidce, 304 

 Cyathocrinus, 304 ', apical system, 329 



,, longimanus, 304, 364 



Cyclas, 81 



cornea, development, 262, 263 

 CydopJioridce, 5 

 Cydophorus, 100 

 Cydostoma, 100 



,, elegans, nervous system, 139 ; 



radula, 182 

 Cydostomidce, 6 



Cylichna, 46 



Cymbulia, 11 ; larva, 257 

 Cymbididos, 11 

 Cymbuliopsis, 11 

 Cyphosoma, 290 

 Cyphosomatidce, 290 

 Cypraea, 5 

 Cypraeidce, 5 

 Cyrena, 17 

 Cyrenidce, 17 

 Cyrtoceras group, 68 

 Cystechinus, 293 



,, vesica, gonads, 499 



Gystidea, 313 

 Cystoblastus, 313 



,, Leuchtenbergi, 312 ; apical 



side, 332 



Cystocidaris ( = Echinocystites), 289 

 Cystocidaroida, 289 

 Cystocrinoidea, 313 

 Cystoid stage, 544 

 Cytherea (Meretrix), 18 

 chione, shell, 63 



DAUDEBARDIA (Helicophanta], 9 

 brevipes, 9 



rufa, intestine, section, 



39 ; uephridia, 220 ; 

 pallial organs, 76, 77 

 saulcyi, 76 



Decadocrinidce, 304 

 Decadocrinus, 304 

 Decapoda, 24 

 Deima, 285 

 Deimatidce, 285 

 Delphinulidce, 170 



Deltoid plates (Blast.), 331 ; (Criu.), 364 

 Dendrochirotce, 287 

 Dendrocrinidce, 304 

 Dendrocrinus, 304 

 Dendronotidce, 13 

 Dentalium, 13, 33 ; shell, 59, 156 



,, entale, 113, 159 ; alimentary 

 canal, 193 ; larva, 258 ; on- 

 togeny of, 258 

 Dermatobranchus, 48 

 Dexiobranchcea, 11 

 Dextral twist (Gastr.), 56, 60, 160 

 Diadema, 290 



,, setosum, 392 ; compound eye, 



469 



Dmdeniatidce, 290 

 Diadematoida, 290 



,, apophyses, 350 



Dialyneurous nervous system (Gastr.), 138 

 Diaphragm (Ceph.), 127 ; cartilage, 127 

 Diaulula, 13 

 Dibranchia, 24 ', eye development, 171 ; 



musculature, 127 ; shells, sections, 69 

 Diceras, 18 

 Dichocrinus, 308 

 Dicyclic base (Criu.), 328 

 Dicydica, 304 



