INDEX 



539 



-36. 



Sand dollars, 96, 99. 



s.mil grouse, 351. 

 hoppers, 103. 



Sandpipers, 351. 



Sand viper, 317. 

 ode, 20. 

 idina, 20. 



Sarcocystis, 34. 



Sarcoptes scadi - i, 184. 



Sarcosporida, 35. 



Sardines, 290. 

 -/<z, 64. 



Sauropsida, 311. 



Sauropterygia, 421, 426. 



Sawfish shark, 278. 

 e insects, 206. 



:s, ctenoid, 286; cycloid, 286 ; ganoid, 

 285; placoid, 276; of Amphibia, 306; 

 of birds, 330; of Crocodilia, 325; of 

 lizards, 313; of serpents, 315. 



Scallops, 247. 



Scaly ant-eaters, 369. 



Scaphirkynchus, 285. 



Scaphoid, 377. 



Scaphopoda, 241. 



Scapula, of Mammalia, 358, 359. 



Scarabaus sacer, 219. 



Scarabs, 219, 220. 



Schizognathse, 348. 



Schizopoda, 166, 450. 



Schleiden, 506. 



Schwammerdam, 498. 



Schwann, 506. 



Sciuromorpha, 386. 



Sciuropterm volucella, 389. 



Sciurus carolinensh extimus, 387; .S. c. leu- 

 cot is, 387. 



Scolex, 112, 115. 



Scolopendra, 190. 



Scorpion flies, 211, 227. 



Scorpionida, 177. 



Scorpions, 177, 432. 



Scorpion spiders, 179. 



Scratching birds, 349. 



Screamers, 342. 



Scrobicularia piperata, 245. 



Scrotal sacs, of Mammalia, 361. 



Scrotum, of Mammalia, 361 ; of marsupials, 



365- 

 Scrub birds, 354. 

 Scrupocellaria ferox, 129. 

 Scutes, of Crocodilia, 325 ; of serpents, 315 ; 



of sturgeons, 284. 

 Scutum, 157, 158. 

 Scyllium cannula, 277. 

 Scyphistoma, 79, 81. 

 Scyphomedusae, 78. 

 Scyphozoa, 71. 



anemone, response to stimuli, 481. 



inem< me 79, 450. 



11 s, 405. 

 Sea bu 239. 



at, 281. 

 Sea corn, 236. 

 Sea cows, 372. 

 Sea cucumbers, 100. 

 Sea ears, 235. 

 Si a elephant, 406. 



in, 77, 78. 

 Sea horses, 296. 



dies, 87. 

 Sea lions, 405, 43s. 

 Si a mi "i 137. 

 Sea otter, 399. 



pen, 77, 79. 

 Sea serpent, 450, 497. 

 Sea serpent table, 296. 

 Sea slugs, 238. 

 Sea snakes, 318. 

 Sea spiders, 186. 

 Sea squirts, 264. 

 Sea urchins, 96. 

 Sea walnut, 80. 

 Seals, 435. 

 Seasonal dimorphism, of butterflies, 213; of 



Hymenoptera, 223. 

 Sebaceous glands, 356. 

 Secondaries, of birds, 328. 

 Secretary bird, 345. 

 Sedentaria, 138. 

 Seed oysters, 246. 

 Segmental organs, 135. 

 Selachii, 276, 278, 450. 

 Selective memory, 489. 

 Semen, ot fishes, 287. 

 Semilunar, 377. 

 Seminal receptacle, of cockroach, 195; of 



Cyclops, 154. 

 Seminal vesicle, of Sagitta, 125. 

 Sentience of protoplasm, 483. 

 Sepia, 252. 



Sepia cultrata, anatomy, 252; exterior, 250. 

 Serosa, 309. 

 Serpent eater, 345. 

 Serpent stars, 93. 

 Serpents, 315, 454. 

 Serpula, 139. 

 Setre, of Annelida, 136; of Brachiopoda, 



133- 



Seventeenth century in science, 500. 



Seventeen-year locust, 209. 



Severino, 497. 



Sexual dimorphism, 472, in Arachnida, 184; 

 in beetles, 219; in birds, 336; in Crusta- 

 cea, 148, 153, 159; in insects, 195, 200; in 

 Lepidoptera, 213; in Rotifera, 126. 



Shagreen, 276. 



