INDEX 



of Nereis, 399; of pelecypods, 371, 373, 374, 

 514; o{ Saccooiossus, 542; of squid, 390, 391; 

 of vertebrates, 50-54, 156 



Cirri, of Branclnoslnma, 551 



Cirripedia, 437, 438 



Clam, see Pelccypoda 



Clamworm, 519; see also Nereis 



Cladocera, parthenogenesis in, 535 



Classification, 214-226; of Animal Kingdom, 

 216; of annelids, 396; of arthropods, 422; 

 of chordates, 541; of ciliates, 257; of coelen- 

 terates, 285; of echinoderms, 486; of mol- 

 lusks, 369; of protozoans, 229; of Sarcodina, 

 230 



Cleavage, 146-148, 159; in earthworm, 413; 

 in Hydra, 298; partial, 160; total, 148 



Cleavage cavity, 148 



Cleavage furrow, 148 



Clitellum, 405 



Cloaca, 50, 129; of pelecypods, 372; of rotifers, 

 345; of Thyone, 504, 505 



Clonnrchis sinensis, 329, 330, 331 



Closed circulatory systems, 514 



Closterocnns elegans, 620 



Clothes moth, 469 



Clovis culture, 644 



Clypeaster, 501, 502 



Cnidoblast, 289, 290, 297 



Cnidocil, 289 



Cocarboxylase, 32, 36 



Coccidians, 245 



Cochlea, 90, 108 



Cockroach, 462 



Cocoons, of moths, 467, 468; of planarian, 

 321 



Cod, 559 



Coelacanths, 631 



Coelenterata, 216, 219, 221, 222, 224, 284- 

 310; budding in, 530; excretion in, 518; 

 gastrovascular cavity of, 513; nervous inte- 

 gration, 522; reproduction, 531 



Coelenterates, 486, 490 



Coelenteron, of coelenterates, 512; of cteno- 

 phores, 512; o{ Hydra, 287 



Coelom, 48, 153, 156, 344; distinctions based 

 on, 368; formation by enterocoelous method, 

 543; of annelids, 396, 421; of ascidians, 

 547; of brachiopods, 364; of Branchiostoma, 

 552; of Bunula, 359; of chaetognaths, 366; 

 of earthworm, 406, 413; of locust, 449; of 

 A>r?M, 399; of pelecypods, 374; o( Saccon/nssus, 

 542; of starfish, 493; relation to reproduc- 

 tive system, 533 



Coelomic cavities, in gonads. 533 



Coelomic fluid, of starfish, 493 



Coeloplana, 312 



Coenosarc, Obelia, 301 



Coenzyme A, 33, 36, 38 



Coenzyme I, 33, 36 



Coenzyme II, 33 



Coenzymes, 28, 30, 32, 33 



Coleoptcra, 457, 463, 464 



Coleps, 257 



Collagenous fibers, 61 



CoUenchyme, 310 



Colon, 50 



Colonial flagellates, 265, 267, 269 



Colonies of Protozoa, 264 268 



Color blindness, 107, 199 



Colpoda, T^l 



Columnar epithelium, 59, 70 



Comb jellies, 310 



Commensal amoebas, 239 



Commensalism, 291 



Common ancestors, 633 



Common carrier, 54 



Common center, migration from. 631 



Communication, among honeybees, 472 



Communities, succession of. 615 



Community, 605 



Comparative anatomy, evidence for evolution, 

 632 



Comparative embryology, evidence for evolu- 

 tion, 633 



Comparative ph\siology, evidence for evolu- 

 tion, 634 



Competition, 609, 612, 649 



Composite cell, 17-22, 18 



Compound eye, of crayfish, 436, 437; of 

 locust, 446, 451 



Compound lipids, 26 



Compound sugars, see Disaccharidcs 



Conditioned reflexes, 100 



C'ondor. 578 



Conduction, 68, 99, 105-113 



Cones, 106 



Congo snake, 563, 564 



Conjugation, in Paramecium, 255; in Suctoria. 

 259' 



Connective tissue, 61, 77; fibrous, 61, 68, 70; 

 mucous, 61; reticular, 61, 70 



Consciousness, 105 



Conservation, of natural resources, 615 



Continental islands, 632 



Contractile cells, of sponge, 280 



Contractile tissue, 67-68; cardiac, 67; non- 

 striated, 67, 70; striated, 68 



Contractile vacuole, Amoeba, 228, 235; Euolena, 

 240; Paramecium, 248, 250; protozoans, 518 



Copepoda, 437 



Copepods, as food of whales, 609 



Copulation, 533; in earthworm, 412 



Copulatory bursa, of planarians, 321 



Coracidium larva, 339 



Coral, 307, 308, 309; skeleton of, 528 



Cornea, 31, 105 



Corpus allatum, 456, 526, 527 



Corpus cardiacum, 526 



Corpus luteum, 123 



Corticosterone, 121 



685 



