INDEX 



483 



Atrial chamber of Amphioxus, 275 

 Auditory capsules, 68 

 Auditory organ, 220 234 : development 

 of, 220 ; relations with air-bladder, 226 

 Auditory ossicles, 100, 231 

 Autostylic skulls, 75 



B. 



Baleen, 26 



Basal processes of vertebral column, 38, 

 54 



Basilar plate, 67 



Basipterygium, 103, 104, 110, 122125 



Bidder's organ, 366 



Bile-duct, 272 



Biserial fin, 106, 123, 124 



Blastoderm, 4 



Blastopore, 5 



Blastosphere, 4 



Blastula, 4 



Blood corpuscles, 299, 300 



Blood vessels, 299 



Bodies of vertebrae (see Centra) 



Body-axis, 12 



Body-cavity, 8 



Bones, cartilage-, membrane-, and invest- 

 ing-, 70 ; dermal, 18, 20, 26 



Bones of skull (see Skull) 



Brachium, 126 



Brain : development, 149, 153 ; mem- 

 branes of, 151 ; general structure, 153 ; 

 convolutions, 154, 172 ; epiphysis, 154, 

 155 ; hypophysis, 154, 155 ; optic 

 vesicles, 154 ; pallium, 153 ; saccus 

 vasculosus, 154, 159, 160 ; ventricles, 

 156 



Brain of Cyclostomi, 157 ; of Elasmo- 

 bratichii and Holocephali, 159 ; of 

 Ganoidei, 162 ; of Teleostei, 162 ; of 

 Dipnoi, 165 ; of Amphibia, 166 ; of 

 Reptilia, 167 ; of Aves, 172 ; of Mam- 

 malia, 172 



Brain-case, 67 



Branchiae (see Gills) 



Branchial arches, 69, 7580. 85, 88, 93. 

 94, 102 



Branchial basket of Cyclostomes, 73, 74 



Branchial clefts, 69, 72, 236, 273 



Branchiostegal membrane and rays, 79, 

 82 



Bronchi, 281, 285, 296 



Bursa Fabricii, 263 



C. 



Caecum, 236, 262, 266 

 Calcaneum, 126133 

 Campanula Halleri, 212 

 Cannon-bone,' 134 

 Capillaries, 300 



Carapace, 34 



Carpalia, 126133 



Carpometacarpus, 130 



Carpus, 126133 



Cartilage-bones, 71 



Cauda equina, 152 



Cement of teeth, 240 



Centra of vertebrae, 36 



Central nervous system, 11, 149 



Centrosome 3, 348 



Cerebral flexure, 156 



Cerebral nerves, 180 



Cerebral vesicles, 153 



Cerebro-spinal cavity, 11 



Cheiropterygium, 125 



Chevron bones, 46, 52 



Chiasma, optic, 208 



Choanae, 82 



Chondrocranium, 69 



Chorda dorsalis (see Notochord) 



Chorion, 338 



Choroid, 209 



Choroid fissure, 209 



Choroid "gland," 212 



Choroid plexus, 158 



Chromatin, 3 



Cilia, 16 



Ciliary folds, 209 



Ciliary muscles, 210 



Circulation (foetal), 300 



Claspers, 31, 377 



Classification of Vertebrates, 13 



Clavicle, 107109 



Claws, 16, 19, 20, 21, 26, 130 



Clitoris, 373, 380, 384 



Cloaca, 236, 259, 262 



Coccyx, 52 



Cochlea, 221232 ; histology of, 233 



Coelome, 8 



Colon, 236 



Colostrums, 29 



Columella auris, 84 



Commissures of brain, 154 



Conjunctiva, 210 



Constriction of notochord, 39, 40, 42, 45, 



47, 49. 



Copulatory organs, 377 

 Coracoid, 107109 

 Corium, 16 

 Cornea, 210 



Corpora adiposa, 368, 370 

 Corpora cavernosa and corpus spongio- 



sum, 382, 384 

 Corpus callosum, 173 

 Corpus luteum, 347 

 Corpuscles of blood, 268 

 Craniata, 13 

 Cranium, 66, 67 

 Cribriform plate, 99 

 Cricoid cartilage, 283 

 Crop, 262 

 Crus, 126 

 Cuboid, 132 

 Cutis, 16 



