6o8 



INDEX. 



Ctenocyst, 126. 



Ctenodiscus, 145. 



Ctenoid, scales of Fishes, 340. 



Ctenophora, 111 ; characters of, 124 ; 



hoinologies of, 127; divisions of, 128; 



distribution of, 129. 

 Ctenophoral canals, 126, 127, 128. 

 Ctenophores, 125. 

 Ctcnostomata, 259, 265. 

 Cuckoo, 457. 

 Cuculidce, 457. 

 Cucullcea, 284. 1 

 Culex, 247. 

 Cultellus, 285. 

 Cultirostres, 448, 449. 

 Curlew, 450. 



Cursores, 443 ; characters of, 451. 

 Cuticle, of Amoeba, 47; of Infusoria, 66; 



of Noctiluca, 72. 

 Cuttle-bone, 303, 306. 

 Cuttle-fishes, 299, 300, 301, 302, 304. 

 Cyamus, 212. 

 Cyanea, 103, 105. 

 Cyathaxonidce, 134. 

 Cyathophyllidce, 134. 

 Cycladidce, 285. 

 Cyclas, 282, 285. 

 Cycloid, scales of Fishes, 340. 

 Cyclolabridce, 363. 

 Cyclophorus, 297. 

 Cyclophthalmus, 230. 

 Cyclopoidea, 193. 

 Cyclops, 205. 

 Cyclostoma, 297. 

 Cyclostomata (Polyzoa), 265, 276 ; (Fishes), 



355. 



Cyclostomi (Fishes), 355. 

 Cyclostomidce (Gasteropoda), 294, 297. 

 Cydippe, 124. 

 Cygnidce, 447. 

 Cylichna, 296. 

 Cymothoa, 213. 

 Cynocephalus, 556. 

 Cynthia, 266. 

 Cyprcea, 294. 

 Cyprceidce, 291, 294. 

 Cyprina, 285. 



Cyprinidce (Mollusca) 285 ; (Fishes), 361. 

 Cypris, 205. 

 Cypselidce, 463. 

 Cyrena, 285. 

 Cyrtia, 274. 



Cyrtoceras, 310, 312, 3H. 

 Cyrtolites, 313. 

 Cysticerci, 163. 



Cystic Worms, 159, 161, 162, 163. 

 Cystiphyllidce, 134. 

 Cystoidea, 138 ; general characters of, 



151 ; distribution of, in time, 157. 

 Cytherea, 285. 



Dacelo, 463. 

 Detctylethra, 390. 

 Dakosaurus, 415. 

 Dama, 523. 

 Daphnia, 206. 

 Darwinian Theory, 38. 

 Dasypodidce, 498', 500. 

 Dasypus, 500. 

 Dasyurus, 497. 



Decapoda (Crustacea), 214; distribution 

 of, in time, 220; (Cephalopoda), 300, 305. 



Decollated shells, 257. 



Deer, 518, 520, 522. 



Deinosauria (see Dinosauria). 



Deinotheriutn, 527, 530, 566. 



Delphinidce, 5 o 5, 510. 



Delphinula, 295. 



Delphinus, 510. 



Demodex, 226. 



Dendroccela, 167. 



Dendrograpsus, 106, 108. 



Dendrolagus , 493. 



Dendrophyllia, 116. 



Dendrostyles, 104. 



Dental formula, 480. 



Dentalidce, 295. 



Dentalina, 53. 



Dentalium, 295; shell of, 289; position 



of, 295. 

 Dentirostres, 460, 461. 



Development, 33; retrograde, 34; of Gre- 

 garinidce, 45 ; of Foratninifera, 52; of 

 Hydra, 81 ; of Corynida, 84 ; of Serfat- 

 larida, 87 ; of Calycophoridce, 91 ; of 

 Physophoridce, 93 ; of Medusidce, 98 ; 

 of Litcernarida, 28, 101; of Actinidce, 

 113; of Pleurobrachia, 127; of Echino- 

 dermata, 136; of Asteroidea, 146; of 

 Comatula, 150; of Tceniada, 160; of 

 Trematoda, 164 ; of Nemertida, 167 ; 

 of Acanthocephala, 168; of Trichina, 

 170; of the Guinea- worm, 171; ofTubi- 

 colar Annelides, 184 * of Errant Anne- 

 lides, 187 ; of Crustacea, 193 ; of A'pi- 

 zoa, 199; of Cirripedia, 201; of Limu- 

 lus, 211 ; of Macrura, 217; of Brachy- 

 ura, 217; ofMyriapoda, 231; of Insecta, 

 239 ; of Polyzoa, '265 ; of Brachiopoda, 

 273 ; of Tunicata, 268 ; of Lamellibran- 

 chiata, 282 ; of Gasteropoda, 289 ; of 

 Amphibia, 381, 387, 389. 



Dextral (Shells), 257. 



Dibranchiata (Cephalopoda), 304 ; char- 

 acters of, 304; divisions of, 305; distri- 

 bution of, in time, 315. 



Diceras, 284. 



Dicoryne, 84. 



Dicotyles, 517, 569. 



Dicranograpsus, 108. 



Dictyonema, 108. 



Dicynodon, 419. 



Dieynodontia, 419. 



Didelphia, 4S5. 491. 



Didelphidce, 496. 



Didelphys, 491, 496. 



Didunculus, 456. 



Dirfws, 456. 



Didymograpsus, 1(8. 



Difflugia, 49. 



Digitigrada, 531, 536. 



Dimerosomata, 227 (see Araneida). 



Dimorphodon, 421. 



Dimyaria, 283. 



Dinornis, 470. 



Dinosauria, 421, 422, 469. 



Diomedea, 445. 



Diphydce, 92. 



Diphyes, 91. 



Diphyllidia, 296. 



Diphyozooids, 91. 



Diplacanthus, 378. 



Diptodonta, 285. 



Diplograpsus, 107, 108. 



