INDEX 



Asymmetron, 3S 

 J fetes, 459 

 Athecata, 343 



Atrial canals, of Appendicttlarfo, -1 

 Atrial lobes, of Doliolum, 22 

 Atriopore, of Amphioxu*, 39, 43 

 Atrium, of Ascidia, 14 : Aitiphioxu*, 43 

 Auditory capsules, of Craniata, 69 

 Auditory nerve, 98, 99 See Brain 

 Auditory organ See Ear- 

 Auditory ossicles, 426 See Ear 

 Auditory region, of Craniata, 69 

 Augustine, 635 

 Auks, 388, 398, 414, 416 

 Autostylic, 71*, 177 

 Auricle, 84, 88 See Heart 

 Auricular appendix, 434 

 Australian region, 595 

 Aves, 350: Example, 351: Distinctive 

 characters and classification, 380 : 

 General organisation of Aves, 389 : 

 Archajornithes, 390: External cha- 

 racters of Neornithes, 392 : Ptery- 

 losis, 394: Skeleton, 396: Myology, 

 405 : Digestive organs, 405 : Respira- 

 tory and vocal organs, 406 : Circula- 

 tory organs, 406 : Nervous system and 

 sense organs, 407 : Urinogenital or- 

 gans, 407 : Development, 407 : Dis- 

 tribution, 414: Ethology, 415 : Phyto- 

 geny, 415 

 Avocet, 393 

 Axis, basi-cranial, 481* 

 Axolotl, 272, 289 

 Aye- Ayes, 458 



B 



B 



LA.BOONS, 522, 524 



Baer, K. E. , von, 640 



Bafcena, 451 



Balcenidce, 450 



Bal&noptera musndns, 500 



Balfenoptera ro*trata, 535 



Bcdanoglosfsus, 1, 37,38: External charac- 

 ters, 2 : Digestive organs, 3 : Skeleton, 

 3 : Blood-vascular system, 3 : Nervous 

 system, 4 : Reproductive system, 5 : 

 Development, 5 : Metamorphosis, 6 



Baleen, 535 



Baleen whales, 450 



Balfour, F. M., 648 



Bandicoots, 449, 467, 492, 530, 561, 563 



Banks, Sir J.,636 



Barbel, 136 



Barbels, in Teleostomi, 209 



Barbs, of feather, 354 



Barbules, of feather, 354 



Barriers, 590 



Barry, Martin, 640 



Basale, 217 



Basalia, of Craniata, 76 



Basal plate, of Craniata, 69 



Basi-branchial, 192 



Basi-branchial plate, 162 



Basi-cranial axis, 481* 



Basi-facial axis, 483* 



Basi-hyal, 71* See Skull 



Basi-OQcipital, 72* See Skidl 



Basi-pterygoid processes, of Birds, 399, 

 400 



Basis cranii, 69 See Skull 



Basi-sphenoid, 72'" See Skull 



Basi-temporals, 361 



Basking sharks, 173 



Bates, H. W. , 644 



Bats, 458, 477, 485 See Chiroptera 



B'Mlostoma, 129, 130, 132, 133 



BdeUastoma forf{/-i, 130 



Beak in Teleostomi, 209 



Beak of pigeon, 351 : Neornithes, 392 



Beaked whales, 451 



Bear, 475, 514, 515, 536, 550 



Beavers, 457, 475, 515 



Bee-eaters, 389 



Bellonius, 629 



BJodon, 343 



Beneden, E. van, 648 



Benthos, 600 



Biceps muscle, 256 



Bicipital groove, 427 



Bile, 81 



Bile ducts, 82 See Liver 



Biogenesis, 631 



Birds See Aves 



Blackbirds, 389 



Bladder, urinary, of Craniata, 113 : Trout, 

 200 : Teleostomi, 223 : Rabbit, 444 : 

 Mammals, 550 



Blainville, 641 



Blastoccele, of Avidia, 17 



Blastula, of Amphioxus, 50, 51 



Blind-snakes, 339 



Blind- worm, 316 



Blood See Vascular system 



Blood-corpuscles, 90 See Vascular- 

 system 



Blood-vessels See Vasciilar system 



Boar, 533 



Boas, 340 



Body-wall, of Craniata, 63 



Boltenia, 21 



Bombinator, 281 



Bones, of Craniata, 72 



Bonnet, 634 



Bony pike, 203 



Botryllus, 22 



Bottle-nosed whales, 451 



Boucher de Perthes, 646 



Bougainville, 636 



Bocidtc, 453 



Bower-birds, 414 



Bow-tin, 204 



Brachial plexus, 265 



, 450, 469 

 * tridwtyhis, 497, 498, 539 



