Ca'ing whale, _45_; see _Globicephalus_ _Calamoichthys_, _33_; distribution, 66 Calamus, 302 Calcaneum, 27; crocodile, 268; dog, 414 Calcar, of frog, 167 _Callorhynchus_, _32_, _66_; teeth, 110 Camel, _45_, _359_; manus, 507; teeth, 428 Camelidae, _45_ _Camelus_, _45_; see Camel Camptosauridae, _39_ Canal: alisphenoid --, dog, 402; carotid --, duck, 315; Eustachian --, crocodile, 247; dog, 402; duck, 316; interorbital --, dogfish, 76 Canaliculi, 10 Canidae, _48_; humerus, 502; skull, 479; see Dog Canine, 344; dog, 376 f. _Canis_, _48_; thoraco-lumbar vertebrae, 450; see Dog _Capitosaurus_, _35_; skull, =176= Capybara, _48_; manus, 511; pes, 526; skull, 476; tail, 454 Carapace, Chelonia, 271; _Dermochelys_, 272; Glyptodonts, 419; Green turtle, 215; Loggerhead turtle, =216= Carcharidae, _32_ Carina sterni, duck, 321 Carinatae, _40_; general characters, 300; quadrate, 334 Carnassial teeth, 368; carnivora, =436=; dog, 376 f. Carnivora, _48_; arm bones, 502; auditory ossicles, 488; cervical vertebrae, 446; general characters, 367; manus, 511; pelvis, 515; pes, 526; ribs, 493; sacral vertebrae, 452; skull, 478; sternum, 490; tail, 454; teeth, 437; thigh and shin, 520; thoraco-lumbar vertebrae, 450 Carnivora vera, _48_; general characters, 368; scapula, 497 Carp, _33_; pharyngeal teeth, 111 Carpo-metacarpus, duck, 324 Carpus, 26; crocodile, 265; dog, 408; duck, 323; frog, 164; newt, 147; turtle, 233 Cartilage, structure of, 10 Cartilaginous ganoids, cranium, 121; pelvic fin, 132; spinal column, 112; see Chondrostei Cassowary, _40_, _299_; aftershaft, 328; bony crest, 334; claws, 330; pelvic girdle and sacrum, =340=; secondaries, 329 _Castor_, _47_; see Beaver Castoridae, _47_ _Casuarius_, _40_; see Cassowary Cataphracti, _34_ Cat, _48_, _369_; hallux, 526; manus, 511; skull, 479 Cat-fish, _33_ Cathartae, _41_ _Cathartes_, _41_; see American vulture Caudal fin, Cetacea, 453; fish, 116; -- vertebrae, crocodile, 243; cod, 85; dog, 383; duck, 312; general characters, 16; newt, 140; turtle, 222 _Cavia_, _48_; tail, 454 Caviidae, _48_ Cebidae, _49_, _373_; ribs, 493; skull, 484; teeth, 441 _Coenolestes_, _43_, 424 Cement, 5