708 



INDEX 



Centrum, 402, 404, 495. 



Cephalochcrda, 386, 393-4°° ; circulatory 

 system, 398; ccelom, 399; digestive 

 system, 396, 397; excretory system, 

 399 ; external features, 394, 395 ! re- 

 production, 399 ; respiration, 397, 398. 



Cephalodiscida, 386, 387 ; Cepkalodiscus, 



387, 389. 

 Cephalopoda, 242, 243, 264-269. 

 Cephalothorax, 277, 278, 371, 378. 

 Cerambycida:, 362. 

 Ceratina, 366. 

 Ceratium, 47. 

 Ceratodontidm, 445, 471. 

 Ceratosaurus, 572, 573. 

 Cercaria, 159, 160. 

 Ccrcopithccidce, 662, 664, 696. 

 Cere, 576. 



Cerebellum, 501, 502, 639, 640. 

 Cerebral hemispheres, 501, 502, 639, 640; 



vesicle, 397, 399- 

 Cerebralulus, 177, 178. 

 Cerianthidca, 142 ; Cerianthus, 142. 

 Certhiida., 593. 



Ccrvidce, 667, 669 ; Cervus, 644, 669. 

 Ceryle, 611. 

 Cestoda, 150, 163-166. 

 Ceslus, 147. 

 Celacea, 633, 645. 

 Chmtoderma, 252. 

 Chatognatha, 180, 181. 

 Chmtopoda, 215, 232, 233-236. 

 Chat ura, 613. 

 Chilcididaz, 365. 

 Chunaidaz, 591. 

 Chamccleon, 537, 550, 551 ; Chamaleon- 



tidce, 537, 55°- 

 Chameleons, 527, 536, 537, 550-551- 

 Chamois, 669, 671. 

 CharadriidcB, 590, 607 ; Charadriiformes, 



590, 607. 

 Chary bdea, 133. 

 Cheetah, 656. 

 Cheiropterygium, 446. 

 Chelicerae, 372, 373, 378. 

 Cheliped, 278, 280. 

 Chelonia, 527, 534, 543, 544; Ckelonida, 



535; Cheloniidce, 535; Cheloniidca, 



535, 543- 

 Chclydidm, 536, 545. 

 Chelydra, 530, 535, 540, 541 ; Chclydrida, 



534, 54°- 



Chemotropism, 36 ; in A meba, 37 ; cray 



fish, 291; earthworm, 228. 

 Chernctidia, 382. 

 Chevrotain, 667, 671. 

 Chiggers, 380. 

 Chilomonas, 45. 

 Chiiopoda, 310-31 1. 

 CHmosra, 431 ; Chimarida, 431. 

 Chimpanzee, 665, 666. 

 Chipmunk, 658, 659. 

 Chironiyidce, 662. 

 Chironectes, 64S. 

 Chironomida, 357. 

 Chiroptera, 642, 650-651. 

 Chitin, 3. 



Chiton, 252; Chitones, 251, 252. 

 Chlamydosaurus, 553. 

 Chlorogogen cells, 216, 219. 

 Choanocytes, 94. 

 Choanoflagcllata, 47. 

 Chondrostei, 443, 452-454, 474, 695. 

 Chondrotus, 511. 

 Chordata, 24, 25, 386-413, 691. 

 Chorion, 682. 

 Choroid, 412. 

 Chorophilus, 512, 519, 520. 

 Chromatin, 13, 16-17. 

 Chromatophores, 42, 43, 448, 522. 

 Chromosomes, 15, 16; in fertilization 



83, S5 ; oogenesis, 82, 83 ; reducticr 



of, 85 ; spermatogenesis, 81, 82. 

 Chromotropism, 36. 

 Chrysalis, 324. 

 Chrysemys, 535, 54i, 542. 

 Chrysochloridaz, 650. 

 ChrysomclidcB, 362. 

 Ckrysopa, 349, 

 Chrysothrix, 664. 

 Chyle, 323- 

 Chyme, 319. 



Cicada, 346, 347, 348 ; Cicadida, 347 

 Cicindelida, 360. 

 Ciconiiformes, 590, 601. 

 Cidaris, 190. 



Cilia, 53, 54, 134, 151, 178, 182. 

 Ciliary muscles, 412, 413. 

 Ciliata, 62, 63, 64. 

 Cinclidw, 591. 

 Cinclides, 135, 136. 

 Ciona, 391. 

 Circulation, Amphioxus, 398; Anodonia 



246; Asterias, 196; crayfish, 278. 



