692 



INDEX 



Amia, 390 



Amiidae, 379, 590, 395 

 Amino acids, 524, 542 

 Amitosis, 24 

 Ammocoetes, 364 

 Amnion, 476, 477 

 Amniota, 476 

 Amniotic cavitv, 478 

 Amoeba, 30, 31-39 



assimilation, 35 



behavior, 36-38 



contractile vacuole, 32 



digestion, 35 



dissimilation, 35 



ectoplasm, 32 



egestion, 35 



endoplasm, 32 



excretion, 36 



fission, 37 



food, 33, 34 

 selection, 34 

 vacuole, 35 



habitat, 31 



ingestion, 33, 34 



morphology, 32 



movement, 33 



physiology, 33-36 



pseudopodia, 33-34 



reactions to stimuh, 38 



reproduction, 36 



respiration, 36 



secretion, 36 



in soil, 75 



structure, 32 

 Amoebic dysentery, 71 



liver abscess, 71 

 Amoebina, 39 

 Amoebocyte, 95, 306 



dermal, 95 

 Amoeboid, cells, 176 



movement, 33 



wandering cells, 93, 99 

 Amoebotaenia, 194 

 Amphibia, 317, 325, 396-404, 

 397, 616, 647 



breeding habits, 399 



classification, 403 



color changes, 398, 399 



fossil, 400 



giant salamanders, 400 



hibernation, 399 



legless, 400 



poisonous, 400 



regeneration, 399 



relations to man, 402-403 



relationships, 397 

 [see Frog) 

 Amphiblastula, 97, 98 

 Amphidiscophora, 101 

 Amphineura, 282, 283, 300 

 Amphioxus, 316-320, 318, 319 



circulatory system, 320 



coelom, 320 



coelomic cavities, 319 



Amphioxus {Cont.) : 



digestive system, 318 



excretorv system, 520 



external anatomy, 316 



internal anatomy, 318 



nervous system, 320 



pharyngeal region, 319 



physiology, 318 



reproduction, 320 



respiratory system, 519 



skeleton, 318 

 Amphipoda, 199 

 Amphisbaenidae, 430 

 Amphiuma, 397, 401, 404 

 Amphiumidae, 397, 404 

 Ampulla, 504, 307, 309, 310 

 Amyda, 412, 429 

 Amylase, 517 

 Amylopsin, 517 

 Anabolism, 18 

 Anacanthida, 395 

 Anal, opening, 163 



pit, 357 



sphincter, 515 

 Analogous organs, 90 

 Anamniota, 476 

 Anaphase, 25-28 

 Anas, 456, 461 

 Anatomy, 10 



comparative, 612 

 Anax, 263 

 Ancestral, bilateral worms, 607 



chordata, 607 



protozoa, 607 



trochophore, 607 



two-layered animals, 607 

 Ancon sheep, 621, 622 

 Ancylostoma, 155 

 Andalusian fowl, 588 

 Andrenidae, 265 

 Anemia, 555 

 Angler, 391, 595 

 Anguidae, 407, 450 

 Anguilla, 590 

 Anguillidae, 379, 395 

 Anguillula, 153 

 Anguis, 414 

 Angulosplenials, 344 

 Animal adaptation to environment, 

 6 



behavior, 555-557 



classification, 7-10 



communities, 633 



habitats, 5-7 



harmful, 13 



history, 601-627 



kingdom, 8 



hfe span, 491 



mitosis, 26 



origin, 601-627 



pole, 357 



products, 13 



unity, 2, 4 



variety, 2 



Anirida, 596 

 Anisomyaria, 282, 301 

 Ankle, 501 



joint, 458 

 Annelida, 5, 170-196, 174, 607 



classification, 195 



coelom, 175 



metamerism, 190 



origin and relations, 195 



relations to man, 195 



trochophore, 188 

 Annular ligament, 506 

 Anodonta, 285-288, 501 



{see Clam) 

 Anole, 415 

 Anofo, 415,450 

 Anopheles, 68, 69 

 Anoplura, 229, 241, 260, 262, 263 

 Anostraca, 199 

 Anser, 456 



Anseriformes, 433, 461 

 Ant, 265 



Anteater, 482, 496 

 Antedon, 515 

 Antelope, 484, 487 

 Antenna, centipede, 226 



cleaner, 245 



comb, 245 



crayfish, 200, 201,202, 205 



grasshopper, 231, 232 



millipedes, 225, 227 



mosquito, 247 



Peripatus, 223, 224 

 Antennule, crayfish, 200, 202 

 Anterior cavity, 550 



horn, 345 

 Anthozoa, 122, 128 

 Anthropoid apes, 489 

 Anthropoidea, 495 

 Antibodies, 527 

 Antigen, 527 



Antihemorrhagic vitamin, 524 

 Anhlocapra, 484, 496 

 Antimeres, 89 

 Antineuritic vitamin, 521 

 Antipellagnc vitamin, 523 

 Antipernicious anemia vitamin, 



525 

 Antirachitic vitamin, 525 

 Antistcrility vitamin, 524 

 Antixerophthalmic vitamin, 521 

 Antlion, 255, 256 

 Ants, 255, 260 



Anus, 150, 151, 154, 202, 226, 

 255,236,307,342 



man, 515 

 Anvil, 549 

 Aorta, 550 



dorsal, 319, 520 



ventral, 319, 320 

 Aortic arch, 356 

 Ape, 495, 625 

 Aphid, 256, 258 

 Aphididae, 264 



