INDEX 



593 



Closed circulatory system, 441 



Clothes moth, 285, 455 



Clotting, blood, 324, 462 



Clypeus, 272 



Cnidoblast, 136, 137, 469 



Cnidocil, 130, 137 



Coagulation (see Clotting) 



Cobras, 385 



Coccidia, 83 



Cochineal insect, 282 



Cochlea, 330, 331, 409 



Cockroaches, 283, 289 



Cocoon, 162, 236, 246, 287, 298, 299, 463, 470-471 



Codling moth, 285, 286 



Coelenterata, 143, 544, 547 



Coelenterates, 134-153, 436, 438, 441-444, 449, 



461, 462, 466, 468, 469, 495 

 Coeliac artery, 339 

 Coelom, 123, 184, 185, 187, 189, 190, 193, 195, 



229-231, 246, 253, 307, 313, 316, 317, 326, 



376, 377, 408, 450, 466, 544, 545, 547 

 (See also Extra-embryonic coelom) 

 Cold sensations, 445 

 Cold-bloodedness, 456 

 Coleoptera, 285 

 Collar, 222 

 Collar cells, 127 

 Collateral, 100 

 Colloblasts, 155 

 Colloidal emulsions, 12 

 Colloids, 11, 12 

 Colon, 322, 519 

 Colonial hydroids, 143, 144, 146, 147, 149, 160, 



494 

 Colonies, 132, 143, 144, 146-150, 187-189, 248, 



264, 312, 313, 494 

 Color, 134, 146-147, 155, 105, 206, 221, 243, 244, 



260, 269, 350, 368, 369, 382, 402 

 Coloration, concealing, 485 

 recognition, 486 

 warning, 486 

 Color-blindness, inheritance, 539 

 Columhn iivia, anatomy, 394 

 Columella, 331, 362 

 Columnar epithelium, 96, 97 

 Comb, 292, 463 

 Comb jellies, 154 

 Combustion, 452 

 Commensalism, 495 

 Commissure, 159 

 Common names, 59 

 Communities, animal, 479-480 

 Comparative anatomy, 518, 552 

 Comparative embryology, 519 

 Competition, 500, 516 

 Complemental genes, 535 

 Complete metamorphosis, 279, 450 

 Compound eye, 255-250 

 Compounds, 7, 8, 19 

 Comstock, .1. H., 293 

 Concealing coloration, 485 

 Conchology, 5 

 Conditioned reflexes, 468 

 Conductivity, 55, 467 



Condyle, 375 

 Conjugation, 74-70 

 Conjunctiva, 333 

 Connective tissues, 98, 99 



fibers, 463 

 Connectives, 159 

 Consciousness, 473, 475 

 Conservation of energy, 15 



of mass, 15 

 Continental islands, 504 

 Continuity, cell life, 49 



chromatin, 49 



germ plasm, 94 

 Continuous fibers, 48 

 Continuous phase, 12 

 Continuous stimulus, 54 

 Contour feathers, 392 

 Contractile cells, 443 

 Contractile fibers, 130, 137, 443 

 Contractile fibril, 100 

 Contractile vacuole, 64, 05, 70, 79, 85, 86, 440, 



441, 446 

 Contractility, 17, 467 



Contrast, lining and nonliving matter, 16-17 

 Conus arteriosus, 339, 340 

 Convergence, 446, 543 

 Coot, foot, 400 

 Copepoda, 202 

 Copper, 19 

 Copperhead, 386 



Copulation, 102, 235-230, 257, 276, 298 

 Copulatory appendages, 250-251, 263 

 Coracoid, 321, 388 

 Coral, 143, 146, 161-162, 513 

 Coral reefs, 152, 153 

 Coral rock, 153 

 Coral snakes, 385 

 Coralline bryozoa, 187 

 Corium, 318, 437 

 Corixa, 274 

 Cormorant, foot, 400 

 Corn boUworm, 285 

 Corn root aphis, 284 

 Cornea, 223, 247, 254, 256, 332, 333 

 Corpuscles, blood (see Blood corpuscles) 

 Cortex, cerebral, 370, 380 



Paramecium, 70 

 Cosmopolitan animals, 499 

 Costal plate, 388 

 Cotton worm, 285 

 Coughing, 468 

 Cowbird, 403 

 Coxal glands, 298 

 Coyote, skull, 407 

 Crabs, 260-261, 205, 495-497 

 Cranefly, 276 

 Cranial nerves, 328 

 Cranium, 319, 320, 386, 424-425 

 Crawdads, 250 

 Crawfish, 250 



Crayfish, 51, 114, 250-260, 442, 506 

 Creation of life, 25-27, 40 

 Cretaceous period, 511, 515 

 Crickets, 273, 283, 289 



