INDEX 



481 



Ciona, 294, 442 

 Circulatory system, 120-143 



dogfish, 129 



frog, 129, 130 

 Cisterna magna, 36 

 Citellus, hibernation of, 352, 353 

 Classification, scheme of, 24 

 Clavicle, frog, 66 

 Claws, 48 

 Cleavage, 246 



Ascaris, 235 



frog, 247 



holoblastic, 246 



hydrolytic, 104 



meroblastic, 246 

 Clitellum, 158 

 Cloaca, 33 

 Cnidocil, 390 

 Cnidosporidia, 380 

 Coagulating enzyme, 107 



COCCIDIOMORPHA, 378 



Coccidium, 377, 378 

 Coccinella, 431 

 Coccygeoiliacus muscle, 78 

 Coccygeosacralis muscle, 78 

 Coccyx, 62 

 Cochlear duct, 199 

 Cockroach, 429 



regeneration in, 349 

 Codosiga, 369, 370 

 Coelata, 400 

 coelenterata, 388 

 Cold receptors, 188 



COLEOPTERA, 431 

 COLLEMBOLA, 428 



Colloidal state, 6 



Colon, 102 



Color blindness, 279, 280 



Coluber, 452 



Columella, 202, 256 



Commensalism, 345, 346 



Communalism, 340-345 



Communities, animal, 360-362 



Compound eye, 192 



Cones, 194 



Conjugation, Paramecium, 381 



Contractile vacuole, 368 



Copperhead, 338 



Copulation, earthworm, 158 

 Coracohumeralis muscle, 76 

 Coregonus, 449 

 Corium, 44 

 Corocoid, 66 

 Coronoid process, 59, 67 

 Corpus luteum, 217 

 Corpuscles, 134 



frog, 135 



human, 137 



Krause, 188 



Pacini, 188 



Ruffini, 188 

 Corti, organ of, 202 

 Cortin, 215 

 Crab, hermit, 347 



regeneration of, 349 

 Cranial nerves, 177 

 Cranium, frog, 56 



human, 58 

 Creatinine, 8 

 Cretaceous time, 365 

 Cretinism, 211 

 Cricket, 429 

 Crinoidea, 437 

 Cristae acusticae, 200 

 Cristatella, 412 

 Crocodile, 451 

 Crocodylus, 451 

 Cro-Magnon man, 307 

 Crossing over, 280-283 

 Crossopterygii, 448 

 Crotalus, 330, 452 

 Crus, 81 

 Crustacea, 421 

 Cryptobranchus, 450 

 Ctenocephalis, 432 

 Ctenoid scale, 448 

 Ctenophora, 397 

 Cucumaria, 440 

 Cuticle, 51 

 Cuticula dentis, 89 

 Cuvier, Georges, 324 

 Cycloid scale, 448 

 Cyclops, 422 

 Cyclostomata, 445 

 Cysticercus, 349 

 Cytokinesis, 19 



