INDEX 



469 



Nerves, splanchnic. Ann. 148. Aceph. 184. Ceph'r. 



219. Ceph'd. 242. Crus. 273. Arach. 302. 



Ins. 331. 

 Nucleus, generative. Inf. and Rhiz. 21. 



intestinal. Aceph. 189. 



Nurses. See Nursing Larvae. 



O. 



Oars, or oarlilie organs. Crus. 268. 



CEsophagus. Ann. 154. Aceph. 189. Ceph'r. 



214. Ceph'd. 249. Crus. 279. Arach. 306. 



Ins. 338. 

 Olfaction. See Organs of. 

 Opercula, branchial. Crus. 286. 

 Operculum. Ceph'r. 203. 



caducum. Ceph'r. 203. 



Organs, auditive. Pol. 34. Acal. 60. Ann. 151. 



Aceph. 186. Ceph'r. 211. Ceph'd. 246. 



Crus. 276. Arach. 305. Ins. 335. 



bird's-head-like. Pol. 32. 



of the Byssus. Aceph. 179. 



copulatory. Ann. 164, 167. Ceph'r. 227. 



Ceph'd. 259. Crus. 291, 293. Ai-ach. 319. 



Ins. 354. 

 generative. Inf. and Rhiz. 20. Pol. 43. 



Acal. 66. Ech. 95. Hel. 114. Turb. 128. 



Rot. 140. Ann. 162. Aceph. 197. Ceph'r. 



225. Ceph'd. 257. Crus. 290. Arach. 316. 



Ins. 348. 



gyratory. Crus. 285. 



locomotive. Inf. 7. Rhiz. 8. Pol. 31. 



Acal. 57. Ech. 77. Hel. 103. Turb. 122. 



Rot. 133. Ann. 145. Aceph. 177. Ceph'r. 



204. Ceph'd. 238. Crus. 268. Arach. 299. 



Ins. 326. 



muciparous. Ceph'r. 224. 



nettling. Pol. 27. Acal. 56. Turb. 121. 



Ceph'r. 224. 

 olfactory. Ceph'd. 245. Crus. 275. Arach. 



304. Ins. 334. 



phosphorescent. Ins. 347. 



prehensUe. Pol. 36. Acal. 56. Ech. 78. 



Crus. 268. 



rotatory. See Rotatory Apparatus. 



salivary. See Salivary Glands. 



of Secretion. Inf. and Rhiz. 19. Pol. 42. 



Acal. 65. Ech. 94. Hel. 113. Turb. 127. 



Rot. 139. Ann. 161. Aceph. 196. Ceph'r. 



22.3, 224. Ceph'd. 255, 256. Crus. 238, 289. 



Arach. 314, 315. Ins. 345, 356, 347. 

 of Sense. Inf. and Rliiz. 9, 10. Pol. 34. 



Acal. 60. Ech. 81. Hel. 105. Turb. 124. 



Rot. 135. Ann. 149, 150, 151. Aceph. 185, 



186, 187. Ceph'r. 210, 211, 212. Ceph'd. 



243, 244, 245, 246, 247. Crus. 274, 275, 276, 



277. Arach. 303, 304, 305. Ins. 332, 333, 



334, 335, 336. 



vitellus-secreting. Hel. 115. Turb. 12S. 



sericeous. Ins. 347. 



soniferous. Ins. 327. 



suctorial. Crus. 278. See also Proboscis. 



of Taste. Inf. 10. Ceph'd. 244. Arach. 



304. Ins. 333. 

 of Touch. Inf. 10. Pol. 34. Ech. 81. 



Hel. 105. Turb. 124. Rot. 135. Ann. 149. 



Aceph. 185. Ceph'r. 210. Ceph'd. 243. 



Crus. 274. Arach. 303. Ins. 332. 

 urinary. Ceph'r. 223. Ceph'd. 255. Crus. 



288. Arach. 314. Ins. 345. 

 venomous. Pol. 28. See Venomous Appa- 



vibratile. Inf. 8. Pol. 26. Acal. 58. 



of Vision. Inf. 9. Pol. 34. Acal. 60. Ech. 



81. Hel. 105. Turb. 124. Rot. 135. Ann. 



150. Aceph. 187. Ceph'r. 212. Ceph'd. 247. 



Crus. 277. Arach. 305. Ins. 336. 

 vortical. Crus. 285. 



Orifice, cloacal. Rot. 136. 



Orifices, genital. Ech. 97. Hel. 115. Turb. 128. 



Ann. 166. Ceph'r. 227. Ceph'd. 258. Crus. 



290. Arach. 318. Ins. 351. 



40 



Orifices, respiratory. Ech. 93. 



Os sepiae. Ceph'd. 235. 



Ovaries. Pol. 45, 47. Acal. 68. Ech. 97. Hel. 



115, 116, 117. Turb. 128. Rot. 140. Ann. 



166, 168. Aceph. 198. Ceph'r. 228. Ceph'd. 



258. Crus. 291. Arach. 316. Ins. 349. 

 Ovipositor. Arach. 318. Ins. 332, 351. 



P. 



Palpi. Cr. 278. Arach. 303, 306. Ins. 332, 337. 



Pancreas. Rot. 136. Ceph'd. 250. Ins. 339. 



Pedicellariae. Ech. 78. 



Peduncle. Aceph. 180. 



Penis, Hel. 115, 116, 117. Turb. 128. Ann. 166. 



Ceph'r. 227, 228. Ceph'd. 259. Crus. 291, 



293. Arach. 319. Ins. 354. 

 Penises, secondary. Crus. 293. 

 Perisoma. Ech. 72. 

 Pharynx. Turb. 125. Ann. 153. Ceph'r. 213. 



Ceph'd. 248. 

 Pinnulae. Ech. 72. 

 Plates, ambulacral. Ech. 72. 



cribriform. Ech. 97. 



genital. Ech. 97. 



madreporic. Ech. 75. 



ocellary. Ech. 81. 



Plexus, splanchnic. See Splanchnic Nerves. 

 Pouch, cirrous. Hel. 115. 



copulatory. Turb. 128. Ins. 349. 



fecundating. Ceph'r. 227. 



incubating. Crus. 292. 



problematical red. Crus. 286. 



Polypi, 24. 



Polypary. Pol. 25. 



Pores, ambulacral. Ech. 72, 77. 



Proboscis. Hel. 103. Ann. 149. Crus. 278. 



Arach 306. Ins. 332, 337. 

 Propagation. See Organs of Generation. 

 Prostate. Ceph'r. 227. 



R. 



Rays, branchial. Ann. 152. 



Receptaculum seminis. Turb. 128. Ceph'r. 227. 



Crus. 292. Arach. 318. Ins. 349. 

 Rectum. Ech. 85. Rot. 136. Ann. 154. Aceph. 



189. Ceph'r. 214. Ceph'd. 249. Arach. 307. 



Ins. 338. 

 Reservou-, egg. Ann. 166. Crus. 290, 292. 



sperm. See Receptaculum Seminis. 



Rhizopoda, 4. 



Ring, aquiferous. Ech. 92. 



oesophageal. Ech. 80. Hel. 104. Ann. 



146. Aceph. 183. Ceph'r. 206. Ceph'd. 240. 



Crus. 270. Arach. 300. Ins. 328. 



osseous. Ech. 73. 



Rostellum. Hel. 103. 

 Rostrum. Ins. 337. 

 Rotatoria, 130. 



S. 



Shell. Aceph. 174. Ceph'r. 203. Ceph'd. 235. 



Crus. 265. 

 Siphon. Aceph. 173. Ceph'r. 203, 220. Ceph'd. 



235. Ins. 343. 

 Silk. Arach. 315. Ins. 347. 

 Skeleton, cutaneous. Pol. 25. Acal. 54. Ech. 72. 



Hel. 101. Crus. 263. Arach. 296. Ins. 322. 

 internal. Ech. 73. Aceph. 175. Ceph'd. 



231. Ins. 322. 

 Skin. See Cutaneous Envelope. 

 Smell. See Olfactory Organs. 

 Spcrmatophores. Ceph'd. 259. Crus. 290. 

 Spermatic Particles. Pol. 46. Acal. 67. Ech. 



95. Hel. 115, 116, 117. Turb. 128. Rot. 



140. Ann. 163. Aceph. 198. Ceph'r. 225. 



Ceph'd. 257. Crus. 290. Arach. 316. Ins. 348. 



