INDEX. 
431 
Reptilia, corpuscles of, 99, 65. 
“ distribution of, 377. 
“ lungs of, US, 84. 
“ mouth of, 61. 
“ prehension of, 61. 
“ scales of, 185. 
“ teeth of, 67. 
“ voice of, 189. 
“ see Crocodile, Lizard, Snake, 
Turtle. 
Respiration, 111. 
“ in Crustacea, 114. 
“ in Echi n ode rms, 112. 
“ in Fishes, 114. 
“ in Insects, 114. 
“ in Mollusks, 113. 
“ rate of, 120. 
“ in Vertebrates, 117. 
“ in Worms, 113. 
Rete mucosum, 128. 
Reticulum, 88, 56. 
Retina, 183, 157, 158. 
Rhea, 327. 
Rhinoceros, 136, 1G4, 351, 129, 344. 
Rhizopoda, 240, 15, 184,185. 
“ skeleton of, 129. 
Rodentia, 345, 335, 336, 337. 
“ teeth of, 71, 335, 336. 
Rostrum, 2S2. 
Rotifera, 266, 219. 
“ jaws of, 64. 
Rudimentary organs, 207. 
Rumen, 88, 56. 
Rurninantia, 352. 
“ stomach of, 8S, 56. 
“ see Ox, Ungulata. 
Saorum, 146. 
Salamander, 318, 296. 
“ metamorphosis of, 174. 
Saliva, function of, 93. 
Salivary Glands, 122. 
Salmon, 316, 283, 285. 
Sand-flea, 284, 252. 
Sandpiper, 332, 312. 
Sarcode, 281. 
Sarcolemma, 39, 204. 
Sauropsida, 308. 
Saururae, 394. 
Scales of Butterflies, 300, 271, 272. 
“ of Fishes and Reptiles, 135, 102, 
283. 
Scallop, eye of, 181, 153. 
“ shell of, 272. 
Scapular Arch, 146. 
Scarabaeus, 299. 
Scarf-skin, 128, 386. 
Sclerobase, 130. 
Scleroderm, 130. 
Sclerotic, 183,157. 
Scolopendra, 2S7, 259. 
Scorpion, 53, 28S, 259. 
“ mouth of, 60. 
“ respiration in, 116. 
Sea-anemone, see Polyp. 
Sea-blubber, 249. 
Sea-butterfly, 273, 229. 
Sea-fan, 256, 208. 
Sea-hare, 274. 
Seal, 355, 128,181. 
Sea-lemon, 274. 
Sea-lily, 258, 211. 
Sea-lion, 355, 350. 
Sea-pen, 208. 
Sea-slug, 262, 274, 215. 
Sea-urchin, 261, 210, 214. 
“ absorption by, 94. 
“ alimentary canal of, 76, 
“ anatomy of, 39. 
“ circulation in, 105. 
“ 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. 
“ teeth of, 64, 28. 
Sea-worm, 26S, 17, 223. 
Secretion, 121. 
“ see Gland. 
Secretory organs, 122. 
Segmentation of egg, 197, 165. 
Seif-division, 191, 160. 
Sensation, 176. 
Sense of hearing, 178. 
“ of sight, 180. 
“ 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, 266. 
Shark, 67, 314, 65, 287. 
“ eggs of, 195, 164. 
“ gills of, 114, 287. 
“ skeleton of, 137, 145, 146. 
Shells of Crustacea, 131. 
“ of Echinoderms, 130. 
“ of Mollusks, 133. 
Shoulder-girdle, 146. 
Shrew, 63, 346, 338. 
Shrimp, 286. 
Sight, of Arthropods, 181. 
39. 
