736 INDEX 



Clasper, 321, 335 

 Class, 25, 70S 

 Classification, 25, 706 

 Clavicles of frog, 357 



of pigeon, 404 



of primates, 478, 562 



of rabbit, 435 



of vertebrates, 560 

 Claws, 528 

 Cleavage of ovum, 643 



complete or holoblastic, 644 



centrolecithal, 671 



determinate, 673 



incomplete or meroblastic, 644 



radial, 672 



spiral, 672 



of bird, 645 



of dogfish, 644 



of frog, 629 



of Hydra, 100 



of invertebrates, 670, 671 



of lancelet, 621 



of mammals, 665 

 Clegs, 259 

 Cleidoic eggs, 550 

 Climatius, 554 

 Cline, 722 

 Clitellum, 159, 175 

 Clitoris of rabbit, 418, 457 

 Cloaca of dogfish, 324 



of frog, 365 



of Monotremata, 497 



of pigeon, 408 



in rabbit, 455 

 Clone, 54, no 

 Closed blood system, 208 

 Clotting of blood, 524 

 Clypeus, 228 

 Cnemial crest, 436 

 Cnidaria, in 

 Cnidoblasts, 91, 92 

 Cnidocil, 91 

 Cnidosporidia, 78, 80 

 Coccyx, 480 

 Cochlea, 415, 468 

 Cockle worm, 141, 143 

 Cockroach, 225, 246, 249 



abdomen of, 229 



alimentary system of, 231 



anatomy of, 226 



as transmitter of disease, 65 



blood vessels of, 235 



digestion and excretion in, 233 



head of, 228, 232 



locomotion of, 230, 232 



mouth appendages of, 228, 229 



nervous system of, 236 



reproductive organs of, 236 



Cockroach, respiratory organs of, 



234 

 sense organs of, 236 



thorax of, 228, 232 



Cocoon, 175, 183 



Cod, 546, 560, 575, 590, 596, 600, 



610, 618 



Coelenterata, 89, no 

 Coelom, 188 



of arthropods, 218 



of bird, 650 



of crayfish, 211 



of dogfish, 321 



of earthworm, 160 



of frog, 634 



of lancelet, 302, 627 



of leech, 183 



of rabbit, 420 



of snail, 268 



of starfish, 289, 293 



of swan mussel, 275 



origin of, in ontogeny, 627 

 Coelomate body, 187 

 Coelomic epithelium, of earthworm, 

 160, 162 

 of frog, 641 

 See also Peritoneum 



fluid, 192 

 Coelomoducts, 189, 210, 268, 278, 



334. 615 

 Coenocyte, 35, 499 



Coenosarc, 103 



Ccenurus cerebralis, 132 



Coenzymes, 471 



Coition, 6, 52, 414, 457 



Coleoptera, 260 



Collagen, 83, 135, 159, 285, 514 



Collar, 264, 266 



cells, 83, 84 

 Collembola, 249 

 Colliculi, 461 

 Colon of cockroach, 233 



of rabbit, 443 

 Colonies, 59 

 Colpidium, 29 

 Columba, 392. See Pigeon 

 Colour changes in frog, 349 

 Columella auris, 354, 356, 404, 586 

 Columella of Mollusca, 266 

 Columnae carneae, 369 

 Combustion of carbohydrates and 



fats, 10 

 Commensalism, 147 

 Commissures, cerebral and cerebro- 

 pedal, of mussel, 280 



circumoesophageal, of cockroach, 

 236 

 of crayfish, 211 



