INDEX. 



435 



Rockfish, 259. 

 Rod cells, 79. 

 Rodentia, 388. 

 Roller, 348. 

 Rorqual, 410. 

 Rostral bone, 299, 316. 

 Rostrum (birds), 334. 

 Rudder fish, 263. 

 Rumen, 35. 

 Ruminantia, 396. 

 Rumination, 396, 

 Rupicapra, 399, 



Sable, 412. 



Saccomys, 390. 



Sacculus, 70. 



Sacculus endolymphaticus, 



70. 

 Sacculus vasculosus, 53, 

 Sacral plexus, 48. 

 Sacrum, 141. 

 Sagenodus, 273. 

 Saiga, 399. 

 Sail fish, 263. 

 Salamanders, 285. 

 Salamandra, 286. 

 Salamandrina, 285. 

 Salientia, 2S6. 

 Salivary glands, 21. 

 Salmo, 256. 

 Salmon, 256. 

 Salmonidse, 256. 

 Salmopercae, 259. 

 Samotherium, 399. 

 Sand-grouse, 350, 

 Sand launce, 263. 

 Sapajou, 416. 

 Sarcolemma, 12. 

 Sarcorhamphus, 348. 

 Sargus, 259. 

 Saurii, 378. 

 Saurocephalus, 256, 

 Saurognathous, 335. 

 Sauropoda, 315. 

 Sauropsida, 291. 

 Sauropterygii, 306. 

 Saurorhamphus, 258. 

 Saururse, 343. 

 Saw fish, 239. 

 Savi's vesicles, 68. 

 Scalse, 73. 

 Scales, 92,99, 228. 

 Scalops, 385. 

 Scaly ant-eater, 382. 



Scaphiopus, 286. 

 Scaphirhynchus, 251. 

 Scaphoid, 177. 

 Scapula, 168. 

 Scarus, 260. 

 Sceleporus, 320. 

 Scehdosaurus, 316. 

 Scelotes,32o. 

 Schizocoele, 7. 

 Schizognathi, 349. 

 Schizognathous, 335. 

 Schwann, sheath of, 11, 

 Scisenidse, 259. 

 Sciatic artery, 191. 

 Scincidse, 320. 

 Scincus, 320. 

 Sciuridse, 390. 

 Sciuromorpha, 389. 

 Sciuropterus, 390. 

 Sciurus, 390. 

 Sclerodermi, 266, 

 Sclerotic, 83, 153. 

 Sclerotomes, 102. 

 Scolopax, 349. 

 Scomber, 263. 

 Scomberesox, 257. 

 Scombridae, 263. 

 Scombroidas, 263. 

 Scopelus, 256, 

 Scops, 348. 

 Scorpsena, 259. 

 Scorpasnidas, 259. 

 Scotseops, 383. 

 Screamer, 348. 

 Scrotum, 371. 

 Sculpin, 259. 

 Scutellate tarsus, 331. 

 Scutes, 322. 

 Sea bats, 266. 

 Sea cow, 405. 

 Sea horse, 258. 

 Sea lion, 413. 

 Sea otter, 412, 

 Sea robin, 260. 

 Sea snake, 325. 

 Seals, 413. 

 Sebastes, 259. 

 Secodont, 365. 

 Secondaries, 330. 

 Sectorial teeth, 411. 

 Segmentation cavity, 5, 210. 

 Segmentation of ^%%, 5, 209, 

 Segmentation of head, 201. 

 Segmentation nucleus, 209. 



Selachij, 238. 

 Selachostomi, 251. 

 Selene, 263. 

 Selenodont, 366. 

 Semicircular canals, 70. 

 Semnopithecus, 416. 

 Sense capsules, 66. 

 Sense cells, 66. 

 Sense corpuscles, 68. 

 Sense organs, 66. 

 Sensory nerves, 46. 

 Seps, 320. 



Septum pellucidum, 51. 

 Septum transversum, 106. 

 Seriola, 263. 

 Serpentes, 322. 

 Serranidas, 259. 

 Sesamoid bones, 176, 

 Seven-sleeper, 390, 

 Sewellel, 390. 

 Shad, 256. 

 Sharks, 232, 238. 

 Sheath of Schwann, 11. 

 Sheep, 399. 

 Shoulder girdle, 168. 

 Shovel nose, 231, 

 Shrews, 385. 

 Siluridse, 255. 

 Silversides, 262, 

 Simasdosaurus, 314, 

 Simla, 416. 

 Simias, 415. 

 Simiidse, 416. 

 Sinus of Morgagni, 29. 

 Sinus urogenitalis, 130. 

 Sinus venosus, 181. 

 Siphoneum, 340. 

 Siredon, 285. 

 Siren, 285. 

 Sirenia, 403. 

 Sirenidse, 284. 

 Sirenoidea, 272. 

 Sivatherium, 399. 

 Skates, 232. 

 Skink, 320. 

 Skua, 349. 

 Skull, 150. 

 Skunk, 412. 

 Sloths, 383. 

 Small omentum, 305. 

 Smell, organ of, 75. 

 Smelt, 256. 

 Smooth muscle, 12. 

 Snakes, 322, 



