616 



ANIMAL BIOLOGY 



Amniotic fluid, 383 

 Amniotic fold, 383 

 Amniotic sac, 383 

 Amoeba, 63 



Amoeba proteus, 63, 64 

 Amphiaster, 48 

 Amphiaster stage, 48 

 Amphibia, 340, 364, 370-381 



Amphibians, 314, 340, 365-381, 465-470, 491, 

 532, 533, 539, 543 

 (See also Cecilians; Frog; Salamanders; 

 Toads) 

 Am.phibolips confluens, gall, 291 

 Amphicoelous vertebrae, 356 

 Amphineura, 221, 222 

 Amphioxus, 319, 320-321 

 development, 124 

 section, 313, 319, 320 

 Amphipods, 266 

 Ampullae, ear, 336, 337 



echinoderms, 197, 198, 208, 209 

 Amylopsin, 329 

 Anableps, 360 

 Anableps dovii, 360 

 Anabolic processes, 461 

 Anabolism, 38, 43 

 Anacondas, 396, 534 

 Anaema, 570 

 Anal ciliated cells, 230 

 Anal fin, 352, 354 

 Anal gland, 282 

 Anal opening (see Anus) 

 Anal spot, 71 



Analogous resemblance, 572 

 Analogy, 54, 473 

 Anaphase, 48, 49 

 Anaphylaxis, 520 

 Anatomy, 5, 579-581 

 Anaximander, 544 



Andalusian fowl, inheritance, 556, 563 

 Anger, 501 

 Angler fish, 364 

 Angleworm (see Earthworm) 

 Animal biology, 6 

 Animal husbandry, 6 

 Animal organisms, 457—462 

 Animal pole, 120, 378 

 Animals, 424 



in absence of oxygen, 491 



classification, 570-577 



compared and contrasted with plants, 41-43 



distribution, 4, 527-537 



evolution, 544-554 



forms, 52, 54 



groups, 58 



limit of size, 4 



number, 3 



past distribution, 538-543 



relation of, to environment, 4 

 to plants, 505 



relations, 4 



variety, 3 

 Annelida, 246, 249, 575, 576 



Annelids, 115, 234, 373, 468-470, 473 490, 

 540, 541 



in general, 246-254 

 Annual changes, 505, 510 

 Annular cartilage, 342 

 Anodonta grandis, 212, 213 

 Anodontas, 219, 220 

 Anopheles, 90, 292 

 Ant bears, 437 

 Ant lions, 296 

 Antarctica, 528 

 Anteaters, 534 



spiny, 430 

 Antedon, 211 

 Antelopes, 439, 534 

 Antennae, 189, 255-257, 266, 274, 276-278, 



282, 310, 311, 494 

 Antennary glands, 494 

 Antennata, 311 

 Antennules, 255-257, 266 

 Anterior chamber, eye, 338, 339 

 Anterior ganglia, 244 

 Anthozoa, 145-148, 522 

 Anthrax, 584 

 Anthropoid apes, 449-454 

 Anthropology, 5 

 Antibodies (see Antitoxins) 

 Antimeres, 52, 574 

 Antitoxins, 518, 519 

 Antrum, 336 



Ants, 286-288. 294, 296, 299, 300, 492, 609, 560, 

 572 



white, 457 



(See also Termites) 

 Anuraphis maidiradicis, 289 

 Anus, 71, 86, 140, 179, 195, 198, 203, 216, 234, 



317, 329, 427, 466, 574, 575 

 Aorta, 319, 366, 386 



dorsal, 323, 342, 346, 346, 366 



ventral, 345, 346, 366 

 Aortic arch, 366, 367, 386, 388, 406, 427, 428 

 Ape man, 452 

 Apes, 437 



anthropoid, 439, 449-454 

 Aphids, 289 



corn root, 289 

 Aphis lions, 295 

 Apical plate, 230 

 Apiculture, 6 

 Apis mellifica, 296-298 

 Apoda, 370, 374 



Appendages, 54, 255, 256, 265, 303, 306, 322, 

 326, 354, 367, 369, 495 



jointed, 310 



(See also Fins; Legs; Wings; Tails; Antennae; 

 etc.) 

 Appendicular skeleton, 324 

 Appendix vermiformis, 328, 427, 647 

 Apteryx, 533 



Aquatic environment, 488 

 Aquatic habitat, 506 

 Aqueous humor, 227, 338 

 Aquiculture, 6 

 Aquinas, Thomas, 545 



