698 



INDFA' 



Alveoli, 459 



Alveoli, of lung, 467 



Alveus, 578* 



Alytes ohstefricans, 308, 312 



Amaneciimi, 23 



Ambiens muscle, 395 



Amhhjopxis spelitmg, 637 



Amblypoda, 608 



Amhlystoma, 293, 299, 303, 311, 312 



American Ant-eaters, 479, 497, 525, 526, 

 527. 528, 529, 564, 598 



Amia, 219. 220, 225, 228, 229, 230, 234, 

 236, 238, 240, 241, 242 



Amia calva, 219 



Ammoca'tes, 137* 



Amnion, of Reptiles, 365 : Birds, 440, 

 441 : Rabbit, 475 : Mammals, 591 



Amniota, 313* 



Amphibia, 66, 264 : Example, 264 : Dis- 

 tinctive characters and classification, 

 292 : General organisation, 294 : Ex- 

 ternal characters, 294 : Exoskeleton, 

 298 : Endoskeleton, 298 : Myology, 



304 : Digestive organs, 304 : Respira- 

 tory organs, 304 : Circulatory organs, 



305 : Nervous system and sense organs, 

 308: Urinogenital organs, 308 : Repro- 

 duction and development, 308 : Distri- 

 bution, 312 : Mutual relationships, 312 



AmphiI)olurus, 362, 366 



Amphica-lous, 146* 



Amphioxides, 44, 60, 64 



Amphioxididoi, 44 



Amphioxus, 44 : External features, 45 : 

 Body-wall, 46: Skeleton, 47, 46, 49: 

 Digestive and respiratory organs, 46, 

 47, 49 : Atrium, 49 : Crelome, 50 : 

 Blood-sj'stem, 51 : Excretor}' organs, 

 52, 53 : Nervou.s system, 53, 54, 55 : 

 Sensory organs, 54, 55 : Reproductive 

 organs, 55 : Development, 56, 57, 58, 

 59, 60, 61, 62, 63, 64 : Distribution, 64 : 

 Distinctive characters, 64 : Affinities, 

 65 



AmphipnouH, 235 



Amphisbffinians, 334, 342, 347, 358, 365, 

 369 



Amphistylic, 78*, 173 



Amphitheriuni, 640 



Amphiuma, 293, 295, 296, 305, 308, 312 



Ampliiuma tridarjyla, 295 



AmpulUe, 115,* 179— See Ear 



Ampullary canals, 179 



Anahas scanden.t, 235 



AnacantMni, 221*, 226, 228, 243 



Anapophyses, of Rabliit, 448* 



Ana.% 416, 421, 428, 429, 626 



Anas bosrhas, 429 



Anatomical evidence of Evolution, 644 



Anchinia, 23 



Anchov\% 220 



Ancylopoda, 608 



Angler, 226 



Angnid(e., 369 



Anrjui.9, 339, .342, 362, 369 



Angular, 206 



Angular process, of mandible, 454— See 



Skull 

 Angulosplenial, 270, 269 

 Ankylosis, 201* 



Annular cartilage, of Lamprey, 127 

 Annulus ovalis, 463 

 Annulus tympanicus, of Frog, 271, 286 

 AiicDiia/iiriis, 490, 506 

 Anomodoutia, 336 

 A7iscr, 416, 421,428 

 Anseres, 416, 435, 442 

 Ant-eater, American, 479, 497 

 Ant-eater, Banded, 494 

 Ant-eater, Scaly — See Manis 

 Ant-eater, Two'-toed, 498 

 Ant-eaters, 479 



Ant-eaters, Cape, 479 — See Orycttropua 

 Antelopes, 482, 501, 598 

 Anterior clasper, 190 

 Anterior commissure, 212 

 Anterior vertebral plate, 172*, 174 

 AnfhropifhecKs, 487 — See Chimpanzee 

 Anthropoidea, 486* 

 AnthropopithecKs troglodytes, 555 

 Antiarcha, 263, 264 

 Antibraehium, 314* 

 Antitrochanter, 392* 

 Antlers, 501, 502 

 Antorbital, 175* 

 Anura, 293*, 294, 296. 297, 298, 300, 302, 



303, 304, 306, 308, 309, 312 

 Antriel/a, 38 

 Aorta, 92 : Amphioxus, 51 — See Vascular 



sj'stem 

 Aortic arches, 95 — See Vascular system 

 Apatornis, 414 

 Apes, 508 



Apical plate, of Tornaria, 8, 9 

 ApfuDiapteryx, 625, 642 

 Appendkuhiria, 21, 22, 24, 25, 29, 30, 31, 



42,43 

 Appendiculariidcp, 22 

 Appendix, vermiform, of Rabbit, 462 

 Aptenodytes, 414 

 Apteryges, 411 

 Apteria, 884*, 422 

 Apteryx, 411, 430, 433, 434, 435, 436, 



439, 442; 

 AqUeryx australis, 411, 412. 421, 432 

 Apteryx mantclli, 427, 428, 430 

 Apteri/x owcni, 433 

 Aptornis, 416, 426, 430, 620, 642 

 Aqueduct of Sylvius, 100* 

 Aqueductus vestibuli, 148, 1(53, 179 

 Aqueous chamber, of Eye, 112* 

 Aqueous humour, 1 12* 

 Aqiii/a, 416, 428, 436 

 Aquinas, Thomas, 675 



I 



