Chelydridae _37_ _Chelys_ _37_, _195_ Chersidae _37_ Chevron bones 16; crocodile 243; mammals 453 f.; reptiles 276 Chevrotain _45_, _359_; teeth 429 _Chimaera_ _32,_ _66_; attachment of fins 130; pelvic girdle 127; skull =65=; teeth 110 Chimaeridae _32_ Chimaeroidei, general characters 65 Chimpanzee _49_; carpus 512; ribs 493; thoraco-lumbar vertebrae 450 _Chinchilla_ _47_; auditory ossicles 488 Chinchillidae _47_ Chiromyidae _49_ _Chiromys_ _49,_ _372_; manus 512; pes 527; teeth 441 Chiroptera _49_; auditory ossicles 488; arm bones 503; cervical vertebrae 446; general characters 370; manus 512; pelvis 515; pes 527; sacrum 452; shoulder girdle 499; skull 481; sternum 490; tail 454; teeth 440; thigh and shin 520; thoraco-lumbar vertebrae 450 _Chirotes_ _38_; limbs 289 _Chlamydophorus_ _44,_ _272_; scutes 419; skull 459 _Chlamydoselache_ _31_; branchial arches 121 _Choeropus_ _43_; manus 504; pes 522 _Choloepus_ _43_; ribs 491; shifting of pelvis 451; skull =458=; sternum 489; thoraco-lumbar vertebrae 447; _C. hoffmanni_ cervical vertebrae 443 Chondrocranium, salmon 87 Chondroid tissue, _Balanoglossus_ 50 Chondrostei _32_; fins 105; general characters 67; teeth 110; see Cartilaginous ganoids Chordal sheath, _Amphioxus_ 52 Chrysochloridae _49_ _Chrysochloris_ _49_; auditory ossicles 488; claws 418; teeth 440 _Ciconia_ _41_; see Stork Ciconiiformes _41_ Cingulum 376 Civet _48,_ _369_; teeth 437 _Cladoselache_ _31,_ _63_; fin 129 Clasper 132; dogfish 82 Clavicle 25; birds 338; cod 102; duck 322; dog 405; fish 126; frog 163; mammals 494 f.; reptiles 289 Claws 3; birds 330; crocodile 237; dog 374; duck 302; mammals 417; turtle 215 Clupeidae, _33_ _Clupeus_, _33_ Cnemial crest, dog, 412; duck, 326 _Coccosteus_, _34_, _70_ Coccyx, man, 454 Cochliodontidae, _31_ _Cochliodus_, _31_; dental plates, 109 Cod, _33_; appendicular skeleton, 101 f.; cranium, 96; mandibular and hyoid arches, =99=; median fins, 86; pectoral girdle and fin, =102=; ribs, 86; skull, 96 f.; vertebral column, 83 f. _Coelogenys_, _48_; zygomatic arch, 477 _Coenolestes_, _43_, 424 Coffer-fish, _33_; see, _Ostracion_ _Colobus_, _49_; pollex, 512 Colubridae, _38_ Columbae, _42_ Columbidae, _42_ Columella, crocodile, 251; duck, 320; frog, 157; turtle, 228