INDEX. 



555 



Skeleton, defined 1 ; Cape Buffalo 

 492 ; Ceratodu* 128 ; cod 83 f. ; 

 crocodile 237 f . ; dog 374 f . ; duck 

 302 f. ; frog 151 f. ; llama 496 ; 

 newt 138 f. ; turtle 214 f. 



Skink 38 ; see Tiliqua 



Skull 16 f. ; Amphibia 173 f . ; Anura 

 179 f.; birds 333 f.; cod 96 f.; 

 crocodile 243 f. ; diagram of 

 Mammalian 385 ; Dipnoi 124 ; 

 dog 383 f. ; dogfish 73 f. ; donkey 

 431 ; duck 312 f. ; fish 117; frog 

 154 f., 159 ; Globicephalus 463 ; 

 Gymnophiona 177; Indian ele- 

 phant 474 ; Mammalia 455 ; 

 Marsipobranchii 57; pig 466; 

 Procavia 433 ; reptiles 276 f. ; 

 Ehinoceros 421 ; Rhytina 46O ; 

 sloth 458 ; Tasmanian wolf 

 456 ; Teleostei 124; turtle 222 f.; 

 wombat 456 



Sloth 43, 352 ; auditory ossicles 

 487 ; arm bones 500 ; claws 418 ; 

 leg bones 517; manus 505; pec- 

 toral girdle 495 ; pelvis 513 ; pes 

 522; ribs 491; sacrum 452; skull 

 457; sternum 489; teeth 424; 

 thoraco-lumbar vertebrae 447 



Snake 38 ; see Ophidia 



Sole 33 



Solea 33 



Solenodon 49 ; teeth 440 



Solenodontidae 49 



Solitaire 42, 330 ; wing 338 ; wrist 

 330 



Sorex 49; pelvis 515; see Shrew 



Soricidae 49 ; skull 481 



Spalacidae 47 



Spatularia 32 ; distribution 66 



Spelerpes 35 ; branchial arches 180 ; 

 ribs 182 ; S. belli teeth 169 



Sperm whale 44, 357 ; see Physeter 



Sphargis 37; see Dermochelys 



Sphenethmoid, frog 156 



Sphenisci 40 ; see Penguins 



Sphenisciformes 40 



Sphenodon 37, 197 f. ; carpus 291 ; 

 cervical vertebrae 275 ; fossae in 

 skull 281; humerus 290; inter- 

 parietal foramen 277; ribs 286; 

 skull 282; tarsus 293; teeth 

 274 



Sphenodontidae 37 



Sphenoidal fissure, dog 388 



Sphenotic 20 ; cod 97 ; salmon 

 89 



Spider monkey 49; see Ateles 



Spinacidae 32 



Spinal column 13 ; Dipnoi 113 ; 

 fish 112 ; Holocephali 113 ; Mar- 

 sipobranchii 56 



Spines, Elasmobranchs 61 ; mam- 

 mals 417 



Spiny anteater 43 ; see Echidna ; 

 mouse 47 ; see Acanthomys 



Splenial 22; crocodile 258; duck 

 320 ; turtle 231 



Spurs, birds 330; Monotremata 

 418 



Spur- winged goose 330 ; plover 

 330 



Squalidae 31, 64 



Squalodon 45, 357 \ dental formula 

 427 



Squalodontidae 45 



Squamata 37; general characters 

 198 ; position of teeth 272 ; skull 

 278 



Squamosal 21 ; crocodile 256 ; dog 

 394; duck 316; frog 160; newt 

 144 ; turtle 229 



Squatina 32 ; calcification of ver- 

 tebrae 114; labial cartilages 119; 

 tail 63 ; vertebral column 114 



Squatinidae 32 



Squirrels, frontals 476 ; pes 526 



Stapes, dog 393; frog 157; man, 

 dog, rabbit 485 ; newt 141 



Steganopodes 41 



Stegosauria 39 ; general characters 

 209 



Stegosauridae 39 



Stegosaurus 39, 208 f. ; exoskeleton 

 272 



Steller's sea-cow 44 ; see Rhytina 



Stereornithes 41 



Stereospondyli 35 



Sternal ribs, crocodile 259 ; dog 

 402 ; duck 320 ; mammals 490 f. 



Sternebra, dog 404 



Sternum 24 ; Amphibia 182 ; birds 

 336; crocodile 260, 261; dog 

 403 ; duck 321 ; frog 163 ; 

 Mammalia 489; newt 145; rep- 

 tiles 287 



Stork 335 ; White 41 



