INDEX. 
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. 
oO. 
Oars, or oarlike organs. Crus. 268. 
Gsophagus. 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. Arach. 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. 183. Ann. 145, Aceph..177. Ceph’r. 
204. Ceph’d. 238. Crus. 268. Arach. 299. 
Ins. 326. 
——- muciparous. Ceph’r. 224. 
—— néttling. Pol. 27. Acal. 56. Turb. 121. 
Ceph’r. 224. 
—— olfactory. Ceph’d. 245. Crus. 275. Arach. 
304, Ins. 384. 
—— phosphorescent. Ins. 347. 
prehensile, Pol. 86. 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. 
Bot. 189. Ann. 161. Aceph.196. Ceph’r. 
228, 224. Ceph’d. 255, 256. Crus. 288, 289. 
Arach. 314, 315. Ins. 345, 356, 347. 
—— of Sense. Inf. and Rhiz.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. 
248, 244, 245, 246, 247. Crus. 274, 275, 276, 
¥77. Arach. 303, 304, 305. Ins. 332, 333, 
$34, 335, 336. 
vitellus-secreting. Hel. 115. 
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- 
ratus. 
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. 
Aon. 166. Ceph’r. 227. Ceph’d, 258. Crus. 
290. Arach 218. Ins. 361. 
Turb. 128. 
469 
Orifices, respiratory. Ech. 93. 
Os sepiae. Ceph’d. 235. 
Ovaries. Pol. 45, 47. Acal. 68. Ech. 97. Hel 
115, 116, 14. 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, 
Pancreas, Rot. 136. Cep 4. 250. 
Pedicellariae. Ech. 78. 
Peduncle. Aceph. 180. 
Penis, Mel. 115,116,117. Turb. 128. Ann. 166, 
Ceph’r. 227, 228. Ceph’d. 259. Crus, 291, 
293. Arach. 319. Ins. 354. 
306. Ins. 332, 337. 
Ins. 339. 
‘| Penises, secondary. Crus. 293. 
Perisoma. Ech. 72. 
Pharynx. Turb. 125. Ann. 153. Ceph’r. 
Ceph'd. 248. 
Pinnulae. Ech. 72. 
Plates, ambulacral. Ech. 72. 
cribriform. Ech. 97. 
genital. 
madreporic. 
ocellary. Ech. 81. 
fe. See 8 
213. 
[eee ey 
Plexus, Nerves. 
Pouch, cirrous. Hel. 115. 
copulatory. Turb. 128. Ins. 349. 
fecundating. Ceph’r. 227. 
incubating. Crus. 292. 
problematical red. Crus. 286. 
Po.ypt, 24. 
Polypary. Pol. 25.. 
Pores, ambulacral. Ech. 72, 77. 
Proboscis. Hel. 103. Ann. 149. Crus. 278 
Aracl 306. Ins, 332, 337. 
Propagation. See Organs of Generation. 
Prostate. Ceph’r. 227. 
R. 
Rays, branchial. Ann. 152. 
Receptaculum seminis. Turb. 128. Cephir, 227. 
Crus. 292. Arach. 318. Ins. 349. 
Rectum. Ech, 85. Rot. 186. Ann.154. Aceph. 
189. Ceph'r. 214. Ceph’d. 249. Arach. 307. 
Ins. 338. 
Reservoir, egg. Ann. 166. Crus. 290, 292. 
——— sperm. See Receptaculum Seminis. 
Raopopa, 4. 
Ring, aquiferous. Ech. 92. 
cesophageal. Ech. 80. Hel. 104.1 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. 
Roraroria, 130. 
Ss. 
Shell. Aceph. 174. Ceph’r. 203. Ceph’d. 235. 
rus. 265. 
Siphon. Aceph. 173. Ceph’r. 203, 220. Ceph’d. 
35. 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. 
Spermatophores. 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- 
