INDEX 



419 



Belone, 111, 145 



Bendire, Major, 298 



Bernicla ruficollis, 293 * 



Birds (see Aves); archaic, 276, 277; 

 modern, 278-323; feet of, 280 *; 

 beaks of, 282 *; present status of, 281 ; 

 sex-dimorphism of, 281; of Paradise, 

 310, 311 *; future of, 312, 313; 

 migration of, 313; geographic dis- 

 tribution of, 314 



Birkenia, 169 *, 171 



Bitterns, 295 



Blastodermic vesicle, of rabbit, 408 * 



Blastopore, 47 



Blastula, of Amphioxas, 42, 43 *; of 

 frog, 205, 206 * 



Blennius, eggs of, 164 



Blind-worms, 184 



Boa-constrictors, 258 



Boidce, 258 



Bombinator igneus, 197 *, 198 



Bothriolepis, 80*, 81, 82, 169*, 171 



Botryllus violaceus, 55 * 



Boulenger, 137 



Bovidae, 390, 392 



Bow-fin, 111, 134 * 



Brachiosaurus, 218, 221 



Bradipodidse, 374 



Bradypus, 376 



Brain, Amphioxus, 38, 39 *; of Cylos- 

 tomata, 88; of Myxinoidea, 90; of 

 Lamprey, 92, 93*; of Pisces, 101; 

 of Elasmobranchii, 118 *; of Scyllium, 

 118 *; of Teleostomi, 128; of turtle, 

 231; of alligator, 244 *; of pigeon, 270, 

 271; of rabbit; 330 *; of dog, 332 *; 

 of mammals, 331; of Ornithorhyn- 

 chus, 351 * 



Branchial basket, of Cyclostomata, 88; 

 of myxinoids, 90 



Branchial clefts, of cyclostomes, 88 



Branchiostoma (see Amphioxus) 



Branchiosaurus, 180, 181 *; B. ambly- 

 stomas, 182*; B. salamandroides, 182* 



Breeding habits, of Amphioxus, 42; 

 of lamprey, 94 *; of Amia, 134; of 

 stickle-back, 144; of sea-horse, 144; 

 of Rhodeus, 135 *, 137; of salmon, 

 138, 139; of killifishes, 142, 156; of 

 cod, 146; of Lepidosiren, 158, 159; 

 of bass and pickerel, 166; of Ichlhyo- 

 phi$, 185 *, 186; of Desmognathus, 



188 *; of Pipa americana, 196, 197 *, 

 198; of Alytes, 197*, 198, 199; of 

 Hyla faber, 201; of Sceloporus, 251; 

 of Echidna, 350; of Ornithorhynchus, 

 351, 352 



Bridge, T. W., 156, 157, 158 



Brontosaurus *, 220 



Brood-pouch, of sea-horse, 144 * 



Bubo virginianus, 307 * 



Bufo lentiginosuSj 197 *, 199; B. 

 vulgaris, 199 



Bufonidse, 199 



Burbot, 146 



Bustard, great, 301 



Bustard quails, 299 ^ -\ 



Buzzard, Turkey, 297, 298 /- 



Cachalot, 400, 401 *, 402 



Cacops, 180 *, 183 



Ccecilia, 185 * 



Caecilians (see Apoda) 



Caenogenetic characters, 24 



Ccenolestes, 357 



Calamichthys, 111, 128, 129, 130 *, 159 



Callechelyx luteus, 159 



Callorhynchus antarclicus, 126 * 



Camel-birds (see Ostriches) 



Camels, 389, 390; Bactrian, 391 * 



Camelus bactrianus, 391 * 



Canidse, 366, 367 *, 368 



Canis nubilis, 367 * 



Capitulum, 326 



Capra sinaitica, 391 



Caprimulgi, 306 



Capuchins, 378, 381 



Caracara, 298 



Carapace, of turtle, 226, 227 *, 228 



Carinatse (see Neornithes Carinatae); 



classification of, 289 

 Carnivora, 364-371; fissiped carnivores 



364-368; pinniped carnivores, 388- 



371; extinct, 370 

 Carp, 111, 140 

 Cassowary, 284, 285 *, 286 

 Cast or fiber, 372 * 

 Casuarias uniappendiculatus, 285 * 

 Catarrhini, 378, 381-384 

 Cat-fishes, 111, 140 

 Catosteomi, 111, 143, 144, 145 

 Cats, 366 

 Caudal fin, of fishes, 100; types of, 104, 



105 *; of Holocephali, 127 



