684 INDEX 



Balcenoptera rostrata, 550, 551 Biceps muscle, 268 



Balanoglossus, 2, 41, 42 : External Bicipital groove, 442 



characters, 3, 4 : Ccelome, 3 : Bile, 85* 



Digestive organs, 5 : Notochord or Bile ducts, 85 See Liver 



cesophageal diverticulum, 3, 6 : Biogenesis, 650 



Blood -vascular system, 4. 6 : Ner- Birds See Aves 



vous system, 4, 5, 6, 7: Repro- Birds of Paradise, 404, 411, 420, 602 



ductive system, 7 : Development, Blackbirds, 404 



7, 8, 9 : Metamorphosis, 8, 9 Bladder, urinary, of Craniata, 116 : 



Baleen, 466*, 550*, 551 Trout, 208, 209 : Teleostomi, 232 : 



Baleen whales, 466 Rabbit, 459, 460 : Mammals, 565 



Balfour, F. M., 667 Blainville, 660 



Banded ant-eater, 480 Blastoccele, 280* 



Bandicoots, 464, 480, 507, 544, 578 Blastodermic vesicle, 569 



Banks, Sir J., 655 Blastula, of Amphioxus, 54, 55 



Barbel, 141* Blenny, 234 



Barbels, in Teleostomi, 212, 214. 218 Blind-snakes, 324, 356 



Barbs, of feather, 370*, 371 Blind-worm, 328, 332, 350, 358 



Barbules, of feather, 370*, 371 Blood, 94 See Vascular system 



Barriers, 606 Blood corpuscles, 50, 94 See Vascular 



Bany, Martin, 659 system 



Basal plate, of Craniata, 73*, 74 Blood vessels See Vascular system 



Basalia, of Craniata, 80* Boar, 548 



Basi-branchial, 74, 77, 145*, 199, 201 Boas, 324, 356 



Basi-branchial plate, 169 Boatswain-bird, 403 



Basi-branchiostegal, 201 Body, of vertebra, 72* 



Basi-cranial axis, 498* Body-cavity See Ccelome 



Basi-cranial fontanelle, 122, 123* Body-wall, of Amphioxus, 44, 45 : of 



Basi-dorsal, 143 Craniata, 67 



Basi-facial axis, 498* Boltenia, 24 



Basi-hyal, 74, 76* See Skull Bombinator, 293 



Basi-occipital, 77*- See Skull Bones, of Craniata, 76 



Basi-pterygium, 203, 204 Bonnet, 653 



Basi-pterygoid processes, of Birds, Bony labyrinth, 394* 



378*, 414, 415 : of Lizard, 308, 309 Bony Pike, 198, 213, 218 



Basi-sphenoid, 77*, 376, 377 See Skull Botryllus, 22, 25 



Basi-temporals, 376, 377 Bottle-nosed whales, 466, 501 



Basis cranii, 74* See Skull Boucher de Perthes, 665 



Basking sharks, 173, 182 Bougainville, 655 



Bastards, 644 Bovidcc, 468 See Oxen 



Bates, H. W., 663 Bowerbank, 661 



Bathymetrical distribution, 614 Bower-birds, 429 



Bats, 471, 493, 501, 553, 581 See Bow-fin, 190, 213 



Chiroptera Brachial plexus, 277* 



Bdellostoma, 134, 135, 136, 137, 138, Brachium, 67, 304 



139 Brady podidce, 465 See Sloths 



Bdellostoma forsteri, 135 Bradypus tridactylus, 512, 513, 514, 



Bdellostoma stouti, 137, 138 515, 554 



Beak, in Teleostomi, 218 : of Pigeon, Brain, Amphioxus, 52 : of Craniata, 



367 of Neornithes, 408 95, 97 : Lamprey, 126, 127, 128. 



Beaked whales, 466 153, 154, 155, 156, 157 : Elasmo- 



Bears, 470, 491, 529, 530, 551, 552, branchii, 173 : Holocephah, 187, 



564) 580 188 : Trout, 206, 207 : Teleos- 



Beavers, 470, 491, 532 tomi, 231 : Geratodus, 246, 247 : 



Bee-eaters, 404 Frog, 275, 276 : Amphibia, 298 : 



Bellonius, 648 Lizard, 318, 319, 320 : Reptilia, 349, 



Belly, of muscle, 266* 350 : Pigeon, 391, 392 : Aves, 421, 



Belodon, 359 422 : Rabbit, 454-458 : Mammals, 



Beneden, E. van, 667 577-562 



Benthos, 616* Brain-case, of Craniata, 73* 



Beryx, 620 Branchia, of Salpa, 27* 



