INDEX. 



435 



Selachii, 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. 

 Serranidae, 259. 

 Sesamoid bones, 176. 

 Seven-sleeper, 390. 

 Sewellel, 390. 

 Shad, 256. 

 Sharks, 232, 238. 

 Sheath of Schwann, n. 

 Sheep, 399. 

 Shoulder girdle, 168. 

 Shovel nose, 251. 

 Shrews, 385. 

 Siluridae, 255. 

 Silversides, 262. 

 Simaedosaurus, 314. 

 Simia, 416. 

 Simiae, 415. 

 Simiidae, 416. 

 Sinus of Morgagni, 29. 

 Sinus urogenitalis, 130. 

 Sinus venosus, 181. 

 Siphoneum, 340. 

 Siredon, 285. 

 Siren, 285. 

 Sirenia, 403. 

 Sirenidae, 284. 

 Sirenoidea, 272. 

 Sivatherium, 399. 

 Skates, 232. 

 Skink, 320. 

 Skua, 349. 

 Skull, 150. 

 Skunk, 412. 

 Sloths, 383. 

 Small omentum, 105. 

 Smell, organ of, 75- 

 Smelt, 256. 

 Smooth muscle, 12. 

 Snakes, 322. 



