660 



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 : Ccelome, 44 : Blood-sys- 

 tem, 45 : Excretorj- 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 

 Amphipnous, 219 

 Amphisbamians, 318, 323, 324, 333, 339, 



342 



Amphistylic, 71* 

 Amphitherium, 604 

 Amphinma, 272, 274, 275, 284, 285 

 Amphiuma tridactyla, 275 

 Ampullae, 108, 165 See Ear 

 Anabas, 219 

 Aiiabas scandens, 219 

 Anacanthini, 205*, 212, 226 

 Anapophyses, of Rabbit, 420* 

 Anas, 388 

 Anns boschas, 401 

 Anchinia, 19 

 Anchovy, 205 

 Angler, 210 

 Anguidcn, 342 

 Anyuis, 316, 319, 335 

 Angular process, of mandible, 425 See 



Skull 



Annular cartilage, of Lamprey, 118 

 Annul us ovalis, 434 

 Annulus tympanicus, of Frog, 251 

 Anomalurus, 463, 476 

 Anser, 388 



Anserev, 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 Orycteropus 

 Antelopes, 453, 473 

 Anterior vertebral plate, 159 

 Anthropoidea, 458* 

 Anthropithecus, 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 



Aphanapteryx, 589, 606 



Aiipendieularia, 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 



Apteryx australis, 383, 404 

 Apteryx mantelli, 399, 400, 402 

 Apteryx oweni, 405 

 Aptornis, 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 

 Archaeoceti, 450*, 570 

 ArchcKopteryx lithographica, 382, 390, 



391, 414 



Archaeornithes, 382, 390 

 Archinephric duct, 111, 112, 113, 131 

 Archipterygium, 155, 239 

 Arcifera, 273 

 Ardea, 387, 394 

 Area opaca, 337, 409 

 Area pellucida, 337, 409 

 Area vasculosa, 411 

 Argentea, 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 

 Arvicola, 560 

 Arytenoids, of Li/ard, 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* 



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

 Ascidiae simplices, 20*, 25, 2j5 

 Ascidians, 11 

 AscidiidcK, 20 

 Aspredo, 225 

 Asses, 452 

 Astacopsis, 586 

 Astoriscus, 199 



Astragalus, 429, 484 See Limb-skeleton 

 Astrapotheria, 453*, 573 

 Astrapotherium, 453 



