(360 



INDEX 



characters, 274 : Endoskeleton, 277 : 

 Myology, 283 : Digestive organs, 283 ; 

 Respiratory organs, 283 : Circulatory 

 organs, 284 : Nervous system and 

 sense organs, 287 : Urinogenital or- 

 gans, 288 : Reproduction and develop- 

 ment, 288 : Distribution, 290 : Mutual 

 relationships, 291 



Amphioxus, 38 : External features, 39 : 

 Body-wall, 40 : Skeleton, 40, 41 : Di- 

 gestive and respiratory organs, 41 : 

 Atrium, 43 : Coelome, 44 : Blood-sys- 

 tem, 45 : Excretory organs, 46, 47 : 

 Nervous system, 47, 48, 49 : Sensory 

 organs, 48, 49 : Reproductive organs, 

 49 : Development, 50, 51, 52, 53, 54, 

 55, 56, 57 : Distribution, 57 : Distinc- 

 tive characters, 58 : Affinities, 58 

 A mph ipno us, 219 

 Amphisbfenians, 318, 323, 324, 333, 339, 



342 



Amphistylic, 71* 

 Aiwphitherium, 604 

 Amphinma, 272, 274, 275, 284, 285 

 Amphiuma tridactyla, 275 

 Ampulla?, 108, 165 See Ear 

 Anabas, 219 

 Anabas scandenx, 219 

 Anacanthini, 205*, 212, 226 

 Anapophyses, of Rabbit, 420* 

 Alias, 388 

 Anas boschas, 401 

 Anchinia, 19 

 Anchovy, 205 

 Angler, 210 

 Anguidce, 342 

 Anguis, 316, 319, 335 

 Angular process, of mandible, 425 See 



Skull 



Annular cartilage, of Lamprey, 118 

 Annul us ovalis, 434 

 Annulus tympanicus, of Frog, 251 

 Anomalurns, 463, 476 

 Aimer, 388 



Amerev, 388, 406, 407, 414 

 Anteater, American, 492, 494, 496, 498, 



525, 532 



Ant-eater, Banded, 467 

 Ant-eater, Scaly See Manis 

 Ant-eater, Two-toed, 469 

 Ant-eaters, 450 



Ant-eaters, Cape, 450 See Oryeteroptte 

 Antelopes, 453, 473 

 Anterior vertebral plate, 159 

 Anthropoidea, 458* 

 Anthropitkecue, 460 

 Anthropopithecus troglodytes, 523 

 Antiarcha, 244 

 Antitrochanter, 364 

 Antlers, 473 

 Anura, 273*, 277, 278, 280, 281, 282, 283, 



284, 285, 287, 288, 289, 291 

 Aorta, 84 See Vascular system 



Aortic arches, 89 See Vascular system 

 Apatornis, 386 

 Apes, 478 



AphanaptzryX) 589, 606 



AppendictUariq, 19, 20, 21, 25, 26, 37 



Appendix, vermiform, of Rabbit, 433 



Aptenodytes, 386 



Apteria, 355, 394 



Apteryx, 383, 393, 399, 400, 404, 405, 

 406, 407, 414 



Aptzryx australis, 383, 404 



Apteryx mantelli, 399, 400, 402 



Apttryx oweni, 405 



Apt&rnis, 388, 398, 402, 584 



Aqueduct of Sylvius, 94 



Aqueductus vestibuli, 136, 151, 160, 166 



Aqueous humour, 105 



Aquila, 388 



Aquinas, Thomas, 635 



Ara, 388, 401 



Arachnoid membrane, 96 



Arbor vita-, of Rabbit, 442 



Archseoceti, 450*, 570 



ArchfBOpteryx lithographica, 382, 390, 

 391, 414 ' 



Archaeornithes, 382, 390 



Archinephric duct, 111, 112, 113, 131 



Archipterygium, 155, 239 



Arc if era, 273 



Ardea, 387, 394 



Area opaca, 337, 409 



Area pellucida, 337, 409 



Area vasculosa, 411 



Argent ea, 199 



Aristotle, 629 



Armadillos, 450, 463, 470, 492, 494, 496, 



498, 532 



Arteries, 86 See Vascular system 

 Arthrodira, 241 

 Articular, 74 See Skull 

 Artiodactyla, 452*, 472, 504, 506, 509, 



532, 544 

 Arvico/a, 560 

 Arytenoids, of Lizard, 306 : Reptilia, 



332 : Pigeon, 370 : Rabbit, 437 

 Ascidia, 20 



Ascidia, 12 : Body-wall and atrial cavity, 

 12 : Pharynx, 14 : Enteric canal, 16 : 

 Blood system, 16 : Nervous system, 

 17 : Excretory system, 18 : Reproduc- 

 tive system, 18 : Development, 27 

 Ascidiacea, 19* 



Ascidiae composite, 20*, 22, 23, 25, 26 

 Ascidiae simplices, 20*, 25, 26 

 Ascidians, ] 1 

 AscidiidcB, 20 

 Axpredo, 225 

 Asses, 452 

 Astacopsis, 586 

 Astoriscus, 199 



Astragalus, 429, 484 See Limb-skeleton 

 Astrapotheria, 453*, 573 

 A strapQtherium , 453 



