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, 122--125 



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 vertebra^ (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- 

 branchii 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 



Branchiaj (see Gills) 



Branchial arches, 69, 75—80, 85, 88, 93, 

 94, 102 



Branchial basket of Cyclostomes, 73, 74 



Branchial clefts, 69, 72, 236, 273 



Branchiostegal membrane and ravs. 79. 

 82 



Bronchi, 281, 285, 296 



Bursa Fabricii, 263 



Cscum, 236, 262, 266 

 Calcaneura, 126 — 133 

 Campanula Halleri, 212 

 Cannon-bone, 134 

 Capillaries, 300 



Carapace, 34 



Carpalia, 126—133 



Carpometacarpus, 130 



Carpus, 126—133 



Cartilage-bones, 71 



Cauda equina, 152 



Cement of teeth, 240 



Centra of vertebrae, 36 



Central nervous system, 11, 149 



Centrosome 3, 348 



Cerebral iiexure, 156 



Cerebral nerves, 180 



Cerebral vesicles, 153 



Cerebro-spinal cavity, 11 



Cheiropterygium, 125 



Chevron bones, 46, 52 



Chiasma, optic, 208 



ChoancB, 82 



Chondrocranium, 69 



Chorda dorsalis (see Notochord) 



Chorion, 338 



Choroid, 209 



Choroid fissure, 209 



Choroid ' ' gland, " 212 



Choroid plexus, 1 58 



Chromatin, 3 



Cilia, 16 



Ciliary fold.s, 200 



Ciliary nmscles, 210 



Circulation (fcetal), 300 



Cla.spers, 31, 377 



Classification of Vertebrates, 13 



Clavicle, 107—109 



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



CUtoris, 373, 380, 384 



Cloaca, 236, 259, 262 



Coccyx, 52 



Cochlea, 221—232 : histology of, 233 



Ccelome, 8 



Colon, 236 



Colostruras, 29 



Columella auris, 84 



Commissures of l^rain, 154 



Conjunctiva, 210 



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

 47, 49. 



Copulatory organs, 377 



Coracoid, 107—10!) 



Corium, 16 



Cornea, 210 



Corpora adiposa, 368, 370 



Corpora cavernosa and coi"pus 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 



