4:10 



INDEX. 



Retina, 183, 158. 

 Uhea, 327. 



Rhinoceros, 351, 344. 

 Rhizopoda, 240, 15, 185, 186. 



" skeletou of, 129. 



Rodentia, 345, 886, 336, 837. 



teeth of, 71, 385. 

 Rotifera, 266, 219. 



" jaws of, 64 

 Rudimentary Orgaus, 207. 

 Rnminautia, 351. 



" stomach of, SS, 56. 



" see Ox, Ungulata. 



SALAMANDER, 318, 296. 



" metamorphosis of, 174. 



Saliva, function of, 93. 

 Salivary Glands, 122. 

 Salmon, 316, 285. . 

 Sand-flea, 284, 252. 

 Sandpiper, 332, 312. 

 Sarcolemina, 39, 204. 

 Sanropsida, 309. 

 Saurnrae, 394. 

 Scales of Butterflies, 301, 272. 



" of Fishes and Reptiles,135,102,283. 

 Scallop, eye of, 181, 153. 



shell of, 272. 

 Scapular Arch, 146. 

 Scarabseus, 299. 

 Scarf-skin, 12& 

 Sclerobase, 129. 

 Scleroderm, 129. 

 Sclerotic, 183. 

 Scolopendra, 291, 259. 

 Scorpion, 288, 259. 

 " mouth of, 60. 

 " respiration in, 116. 

 Sea-anemone, see Polyp. 

 Sea-blubber, 247. 

 Sea-butterfly, 273, 229. 

 Sea-fan, 256, 208. 

 Sea-hare, 274. 

 Seal, 355, 128. 

 Sea-lemon, 274. 

 Sea-lily, 258, 211. 

 Sea-lion, 355, 850. 

 Sea-slug, 274. 

 Sea-urchin, 262, 214. 



" absorption by, 94. 



alimentary canal of, 76, 89. 



anatomy of, 89. 



circulation in, 106. 



digestion in, 92. 



growth of, 214. 



mode of feeding, 52. 



mouth of, 56. 



respiration in, 112. 



shell of, 28. 



skeleton of, 130, 96. 



spines of, 130, 97. 



Sea-nrchin, teeth of, 04, 28. 

 Sea-worm, 208, 17, 223. 

 Secretion, 121. 



see Gland. 



Segmentation of egg, 197, 16b. 

 Self-division, 191, 160. 

 Sensation, 176. 

 Sense of hearing, 1 78. 

 " of sight, ISO. 

 " of smell, 177. 

 " of taste, 177. 

 " of touch, 176. 

 Sense-organs, see Sense. 



" development of, 204. 



Sensibility, 176. 

 Sepia, '280, 248. 

 Serpent, see Snake. 

 Sertularia, 247, 192. 

 Serum, 98. 

 Setae, -269. 



Setophaga, 340, 325. 

 Seventeen-year locust, 297, 26'o. 

 Shark, 314, 287. 



" eggs of, 194, 164. 

 " gills of, 114, 287. 

 " skeletou of, 137, 145. 

 Shells of Crustacea, 131. 

 " of Echiuoderms, 130. 

 " of Mollusks, 133. 

 Shoulder-girdle, 146. 

 Shrew, 63, 346, 338. 

 Shrimp, 286. 



Sight, of Arthropods, 181. 

 " of Coelenterates, ISO. 

 " ofMollusks, 181. 

 " of Vertebrates, 182. 

 Silk-gland, 40. 

 Silk-worm, 303. 

 Simia, 358, 353, 355. 

 Sinuses, 138. 

 Siphouophora, 24S, 194. 

 Siphtiucle, 279, 247. 

 Siren, 318. 



Sireuia, 349, 78, 348. 

 " see Dugong. 

 Size of Animals, 221. 

 Skeleton, of Arthropoda, 131. 

 of Birds, 116, 144. 

 ofCoeleuterates, 130. 

 " of Echinoderms, 130. 

 of Fish, 138, 144, 112. 

 " of limbs, 146. 



Lion, 139, 116. 

 " Mammals, i;,9. 106. 114, 117- 



120. 



Mollusks, 133. 

 Reptiles, 118, 115. 

 of skull, 141, 108, 111. 

 " of Vertebrates, 134. 



of Whale, 114. 

 " see Exoskeletou. 



