INDEX. 



391 



36. Cilia of, 34. Locomotion in, 35. 



Muscular system, 34, Nervous system 



in, 35. Shells of, 34. Teeth of, 35. 



Testis, 37. Vascular system, 36. 



Vesicul^ seminales, 37. Wheels of, 



34. 

 Rotation of embryo in ovo, 289. 311. 

 Rudistes, 291. 

 Rudolphi, 42, 53. 



Salivary glands in 



Cephalopods, 323. 



Cirripeds, 158. 



Echinoderms, 122. 



Entozoa, 70. 



Gasteropods, 298. 



Insects, 220. 



Pteropods, 292. 

 Salpa, 276. 

 Sarcoptes Galei, 252. 

 Sars, M., 111. 

 Savigny, 275. 

 Scaphite, 332. 

 Schultze, Prof. His experiment on 



spontaneous generation, 32. 

 Scorpion, 260. 264. 

 Sea-anemone, 87. 

 Sea-grapes, 360. 

 Sepia, 349. 

 Sertularia, 86. 

 Sharpey, Prof, 116. 

 Shell of Brachiopoda, 277. 



Cephalopoda, 328. 341. 



Gasteropoda, 295. 



Lamellibranchiata, 286. 



Pteropoda, 291. 



Absorption of, 296. 

 Ship-borer, 287. 

 Siebold, Prof, 76. 109. 285. 

 Siliceous deposits of Infusoria, 40. 43. 

 Sinistral shells, 295. 

 Siphoniferous shell, formation of, 329. 



Its function, 330. 

 Sipunculus, 128. 

 Skeleton, external, in 



Arachnida, 251. 



Crustacea, 163. 



Echinoderma, 114. 117. 



Insecta, 193. 

 Slug, 10. 

 Soemmering, 54. 

 Spallanzani, 39. 

 Spermatophora, 358. 

 Spermatozoa of 



Acalephae, 108. 



Anellida, 146. 



Cephalopoda, 358. 



Echinoderma, 135. 



Lamellibranchiata, 288. 



Nematoidea, 73. 



Polypes, 99. 



Sphinx Ligustri, 242. 



Spiders, loves of, 262. Webs of, 262. 



Spines of Echinus, 117. 



Spiroptera Hominis, 65. 



Spirula, 314. 341, 



Spontaneous fission, 23. 111. 144. 



Squilla, 169. 



Star-fish, 113. 



Stomapoda, 177. 



Stone-lilies, 114. 



Stokes, C. Esq., 331. 341. 



Strongylus Gygas, 65. 



Stutchbury, Sam., Esq., 91. 



Sub-kingdoms of Animals, 12. 



Svrammerdam, 245. 



Swan, Jos. Esq., 170. 



Tape-worms, geographical distribution 



of, 48. 50. 54. 

 Taenia Solium, 48. 

 Teeth of 



Echinus, 121. 



Leech, 133. 



Nereids 135. 

 Tenacity of life in 



Entozoa, 79. 



Infusoria, 39. 

 Tentacula of 



Hydra, 83. 



Nautilus, 31'"'. 319. 

 Terebratula, 277. 

 Teredo, 287. 

 Tetrabranchiata, 31 

 Thompson, Mr. J. V., 129. 160. 

 Tiedemann, Prof, 116. 

 Tongue of 



Cephalopods, 353. 



Limpet, 298. 



Nautilus, 323. 



Whelk, 298. 

 Torpidity, 39. 

 Touch, organs of, 



Arachnida, 257. 



Cephalopods, 322. 351. 



Crustacea, 173. 



Gasteropods, 306. 



Insecta, 210. 

 Tracheliastes, 151. 

 Transition from Radiata to Mollusca, 



269. 

 Trematoda, 55. 60. 

 Trichina spiralis, 62. 

 Trichocephalus dispar, 65. 

 Trilobite, 165. 

 Trophi, 215. 

 Tunicata, 267. 

 Turrilite, 332. 



Urinary organs, 22L 258. 284. 302. 

 325. 



