696 



iNDEX 



Cat (Cont): 



muscular system, 467 



nervous system, 471 



reproductive system, 472 



respiratory system, 469 



sense organs, 471 



skeleton, 465, 466 



skull, 466 



urogenital organs, 471 

 Catabolism, 18 

 Catalysts, 519 

 Caterpillar, 244 

 Catfishes, 388, 395 

 Cattle, 491 



grub, 259 

 Caudal, fin, 316, 368, 369 



muscle, 467 



vertebra, 437 

 Caudata, 396, 397, 404 

 Caudofemorus, 467 

 Cave crayfishes, 215 



fishes,'390 

 Cecidomyidae, 265 

 Cecum, 515, 517 



worm of chickens, 154, 155 

 Cell, 20-29, 21 



chromosomes, 27, 28 



discovery of, 29 



division, 24-29 



inclusions, 21 



membrane, 21-24 

 diffusion, 24 

 osmosis, 23, 24 



number, 20 



protoplasm, 29 



shape, 20 



size, 20 



structure, 21 



theory, 29 



wall, 29 

 Cellular differentiation, 566 

 Cellulose, 519 

 Cement, 475 

 Cenozoic, 616, 617 

 Centipede, 225, 226 

 Central canal, 319, 320, 352, 354 



cavity, 93, 95, 96 



nervous system, 350, 545 

 Centrarchidae, 379 

 Centriole, 21, 22 

 Centromere, 28 

 Centrosome, 21, 22 

 Centrosphere, 21, 22 

 Centrum, 345, 502 

 Centruroides, 277 

 Cephalacanthida, 395 

 Cephalization, 89 

 Cephalochordata, 316 

 Cephalopoda, 282, 283, 293, 298, 



301 

 Cephalothorax, crayfish, 199, 200 



spider, 267, 269 

 Cerambycidae, 264 

 Ceratium, 75 



Cercaria, 139, 140,142,143 



Cercopidae, 264 



Cercus, 231 



Cere 434 



Cerebellum, 350, 351, 546 



Cerebral aqueduct, 351 



hemisphere, 350, 351, 546 

 Cerebrospinal fluid, 352 

 Cerebrovisceral connective, 286 

 Cerebrum, 546 

 Certhiidae, 462 

 Cervical groove, 200, 201 



vertebra, 437, 501 

 Cestoda, 134, 138, 147 

 Cestus, 1 3 1 

 Cetacea, 464, 496 

 Chaetoderma, 282 

 Chaetogaster, 171, 190 

 Chaetognatha, 167, 168 

 Cliuetonotus, 168 

 Chaetopterus, 185, 186 



tubedwelhng, 188 

 Chaetura, 462 



Chagas' disease, 70, 262, 483 

 Chalaza. 443 

 Chalcididae, 265 

 Chalcids, 265 

 Chalk, 76, 77 

 Chamaeidae, 462 

 Chamaeleo, 430 

 Chamaeleonidae, 407, 430 

 Chambered nautilus, 282, 296 

 Chambers of eye, 550 



heart, 530 



partition, 296 

 Chameleon, 407,430 

 Chan and Eng, Siamese twins, 



598 

 Channel, afferent, 207, 208 



efferent, 207, 208 



shell, 292 

 Chaos chaos, 39 

 Characidae, 379 

 Characins, 379, 395 

 Charadriiformes, 433, 461 

 Charadrius, 461 

 Chatterers, 462 

 Chaudhurida, 395 

 Cheese skipper, 261 

 Cheetah, 486 

 Chela, 205 



Chelicera, 269, 270, 274 

 Chelidae, 407 

 Chelifer, 279 



Cheliped, 200, 201,202, 205 

 Chelonia, 405, 407, 413,429 

 Cheloniidae, 430 

 Chehdra, 429 

 Chelydridae, 407, 429 

 Chemical coordinators, 551- 

 557 



cycle, 633 



digestion, 514, 518 



genetics, 594 



Chemical (Cont.): 



reaction in muscle contraction, 

 508 

 Chemoreceptors, 547, 548 

 Chewing insects, 259 

 Chicken, 456 



louse, 259 



mite, 275, 279 

 Chilodonella, 64, 65 

 Chilomastix, 73 

 Chilomonas, 35, 46, 47 

 Chilopoda, 225 

 Chimaera, 324, 375, 377 

 Chimney swift, 449, 453, 462 

 Chimpanzee, 489, 490 

 Chinch bug, 258, 259, 263 

 Chinchilla, 485 

 Chipmunk, 485 

 Chironomidae, 265 

 Chiroptera, 464, 495 

 Chitin, 110 



-like jaws, 164 

 Chitinous rods, 287 



teeth, 190 

 Chiton, 282, 283, 290, 300 

 Chlamydomonas, 75, 561, 562 

 Chloragogue cells, 174, 175 

 Chlorella, 1 1 3 

 Chlorohydra, 113 

 Chlorophyl, 43 

 Chloroplast, 43 

 Choanichthyes, 379, 394 

 Choanocyte, 93, 95 

 Choanoflagellate, 99 

 Cholecystokinin, 554 

 Cholesterol, 520 



Chondrichthyes, 317, 324, 368- 

 377 



{see Dogfish shark) 

 Chondrosia, 101 

 Chondrosteica, 379, 394 

 Chordata, 4, 8, 315-325,607 



body plan, 316 



division into subphyla, 315 



hypothetical ancestor, 317 

 Chordate embryo, 565 

 Chordeilcs, 462 

 Chorion, 476, 478 

 Chorionic villi, 478 

 Choristida, 101 

 Choroid coat, 550 

 Chromatids, 28 

 Chromatin, 21, 22 

 Chromatoid bodies, 71 

 Chromatophore, 328, 389 

 Chromonema, 27, 28 

 Chromosomes, 27-29, 28, 57^ 

 600 



autosomes, 583 



diploid, 575 



distribution, 575 



equation, 576, 577 



fruit fly, 584 



haploid, 575 



