420 



INDEX. 



Aniraalivora, 387. 



Annulata, 321. 



Anolis, 320. 



Anomaluridae, 330. 



Anomalurus, 390. 



Anomodontia, 303. 



Anopiotheridae, 398. 



Anoplotheriiim, 398. 



Anser, 348. 



Ant-eater, scaly, 382. 



Ant-eater, spiny, 377. 



Ant-eaters, true, 383. 



Antebrachium, 176. 



Antennariidae, 266. 



Antennarius, 266. 



Anterior abdominal vein, 

 197. 



Anthracotheriidas, 397. 



Anthracotherium, 397. 



Anthropoidea, 415. 

 Anthropomorpha. 416. 



Antbropops, 416. 

 Antiarcha, 225. 

 Antidorcas, 399. 



Antilocapra, 399. 

 Antilope, 399. 

 Antrozous, 357. 

 Ant-shrike, 351. 

 Anura, 286. 

 Aorta, 181. 



Aortic arches, 182, 185. 

 Apatomis, 344. 

 Apeltes, 258. 

 Apes, 416. 

 Aphredoderus, 259. 

 Apodes, 256. 

 Aponeurosis, 112. 

 Appendage, pyloric, 38. 

 Appendicularia, 2. 

 Appendicular skeleton, 167. 

 Appendix, digitiform, 36. 

 Appendix verraiformis, 39. 

 Aptenodytes, 3^7. 

 Apteryges, 346. 

 Apteryx, 346. 

 Apteria, 95. 

 Aqueduct of brain, 50. 

 Aqueductus vestibuli, 70. 

 Aqueous humor, 83. 

 Aquila, 348. 



Arachnoid membrane, 57. 

 Arapaima, 256. 

 Arcades, 2>8. 

 Archseoceti, 408. 



Archseopteryx, 343. 

 Archasomithes, 343. 

 Arch^osaurus, 283. 

 Archenteron, 6. 

 Archer fish, 262. 

 Archipterygium, 172. 

 Arcifera, 2E.6. 

 Arctocyon,4ii. 

 Arctocyonidae, 411. 

 Arctomys, 390. 

 Arctotherium, 412. 

 Ardea, 348. 

 Area opaca, 342. 

 Area peiiucida, 342. 

 Areolar tissue, 13. 

 Armadillo, 383. 

 Arterial blood, i B4. 

 Arteries, 178, i33. 

 Arthrodira, 271. 

 Articular process, 140. 

 Articulary, 158. 

 Artiodactyla, 396. 

 Arvicola, 390. 

 Arytenoid cartilage, 28. 

 Ascalabotae, 319. 

 Ascalabotes, 319. 

 Asineops, 262. 

 Asp, 325. 



Aspidocepfaali, 225. 

 Aspidonectes, 310. 

 Aspidorhynchus, 252. 

 Ass, 395. 

 Asterolepis, 225. 

 Asterospondyli, ^8. 

 Asterospondylous vertebras, 



234- 

 Astragalus, 177. 

 Atalapha, 3S7. 

 Atelodus, 395. 

 Athecae, 310. 

 Atherina, 262. 

 Atherinidae, 262. 

 Atlantosaurus, 315- 

 Atlas, 142. 

 Atoposaiuidas, 323. 

 Atrium, 181. 

 Auchenaspis, 225. 

 Auchenia, 398. 

 Auditory bulla, 357. 

 Auditon.- nerve, 63. 

 Auditory ossicles, 158. 

 Auk, 349. 

 Auricle, 181, 184. 

 Aurochs, 400. 



Autostylic skull, 241. 

 Auxis, 263. 

 Aves, 330. 

 Axillary artery, 1Z9. 

 Axis, 142- 

 Axis cylinder, 11. 

 Axis deer, 399, 

 Axon, II. 

 Aye-Aye, 415. 

 Azygos vein, 196. 



Babirusa, 397. 



Baboon, 416^ 



Bactrian, 398- 



Badger, 412. 



Balaena, 410. 



Balaenidae, 410. 



Balsenoidea, 409. 



Baleenoptera, 410. 



Balasnopteridse, 410. 



Balancers, 24, 232. 



Balanoglossus, 3, 



Baleen, 409. 



Balistes, 266. 



Bandicoot, 380. 



Banteng, 4C0. 



Baphetes, 284. 



Baptanodon , 3 13 . 



Barbus, 253. 

 Barracuda, 262. 

 Basalia, 173. 



Bascanion, 325. 

 Basibranchial, 154. 

 Basihyal, 155. 

 Basilosaunis, 408. 

 Basioccipital, 157. 

 Basisphenoid, 153. 

 Basitemporal, 334, 

 Bassaris, 412. 

 Bass, black, 259. 

 Bat fish, 255. 

 Bathyergus, 390. 

 Bathyergidae, 390. 

 Batoidea, 239. 

 Batrachia, 274. 

 Batrachidae, 266. 

 Batrachus, 266. 

 Eats, 336. 

 Bdellostoma, 224. 

 BdeUc^tomJda^, 224. 

 Bead snake, 325. 

 Bears, 412. 

 Beaver, 3 yz . 

 Bee-eater, 348. 



