yo8 



INDEX 



Centrum, 402, 404, 495. 



Cephalochorda, 386, 393-400 ; 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 ; Ce phalodiscus , 



387, 389- 



Cephalopoda, 242, 243, 264-269. 

 Cephalothorax, 277, 278, 371, 378. 

 CerambycidcB, 362. 

 Ceralina, 366. 

 Ceratium, 47. 

 Ceratodontida:, 445, 471. 

 Ceratesaurus, 572, 573. 

 Cercaria, 159, 160. 

 Cercopithecida, 662, 664, 696. 

 Cere, 576. 



Cerebellum, 501, 502, 639, 640. 

 Cerebral hemispheres, 501, 502, 639, 640; 



vesicle, 397, 399- 

 Ccrebratulus, 177, 178. 

 Cerianthidea, 142; Ceriantkus, 142. 

 Certhiidce, 593. 



Cervida, 667, 669 ; Cervus, 644, 669. 

 Ceryle, 611. 

 Cestoda, 150, 163-166. 

 Cestus, 147. 

 Cetacea, 633, 645. 

 Chcetoderma, 252. 

 Chatognatha, 180, 181. 

 Chcetopoda, 215, 232, 233-236. 

 Chalura, 613. 

 Chalcidida, 365. 

 ChiimceidcB, 591. 

 Chamceleon, 537, 550, 551; Chamaleon- 



tidcB, 537, 550. 



Chameleons, 527, 536, 537, 55<>-55i- 

 Chamois, 669, 671. 

 Charadriidd, 590, 607 ; Charadrii/ormes, 



590, 607. 

 Charybdea, 133. 

 Cheetah, 656. 

 Cheiropterygium, 44(1. 

 Chelicerae, 372, 373, 378. 

 Cheliped, 278, 280. 

 Chdonia, 527, 534, 543, 544; Chelonida, 



535 ; CheloniidcE, 535 ; Cheloniidea, 



535, 543- 



" -lydidai, 536, 545. 

 (.ndydra, 530, 535, 540, 541 ; Chelydnda; 



534, 540. 



Chemotropism, 36 ; in Ameba, 37; cray- 

 fish, 291 ; earthworm, 228. 



Chernetidia, 382. 



Chevrotain, 667, 671. 



Chiggers, 380. 



Chilomonas, 45. 



Chilopoda, 310-311. 



Chimcera, 431 ; Chimarida, 431. 



Chimpanzee, 665, 666. 



Chipmunk, 658, 659. 



Chiromyidce, 662. 



Chironectcs, 648. 



ChironomidcE, 357. 



Chiroptera, 642, 650-651. 



Chitin, 3. 



Chiton, 252; Chitones, 251, 252. 



Chlamydosaurus, 553. 



Chlorogogen cells, 216, 219. 



Choanocytes, 94. 



Choanofiagellata, 47. 



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



Chondrotus, 511. 



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



Chorion, 682. 



Choroid, 412. 



Chorophllus, 512, 519, 520. 



Chromatin, 13, 16-17. 



Chromatophores, 42, 43, 448, 522. 



Chromosomes, 15, 16; in fertilization, 

 83, 85 ; oogenesis, 82, 83 ; reduction 

 of, 85 ; spermatogenesis, 81, 82. 



Chromotropism, 36. 



Chrysalis, 324. . 



Chrysemys, 535, 541, 542. 



Chrysochlorida, 650. 



Chrysomelida, 362. 



Chrysopa, 349, 



Chrysothrix, 664. 



Chyle, 323- 



Chyme, 319. 



Cicada, 346, 347, 348; Cicadidce, 347. 



Cicindelida:, 360. 



Ciconiifornics, 590, 601. 



Cidaris, 190. 



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



Ciliary muscles, 412, 413. 



Ciliala, 62, 63, 64. 



Chit'Hda, 591. 



Cinclides,^35, 136. 



Ciona, 391. 



Circulation, Amphioxus, 398: Anodonta, 

 246; Asterias, 196; crayfish, 278, 







