186 



INDEX 



M. edulis, 42, 43, 287, 405, 



427, 428. 

 M. hamatus, 405, 428. 



N 



Naming of plants, 28. 

 Nanomia, 130. 



N. cara, 117, 130. 

 Narcomedusoe, 117. 

 Nassa, 3, 10, 12, 327, 335, 390. 



N. fossata, 327, 391. 



N. mendica, 327, 391. 



N. obsolete, 10, 12, 327, 390. 



N. perpinguis, 327, 391. 



N. tegula, 327, 391. 



N. trivittata, 10, 11, 327, 390. 



N. vibex, 327, 391. 

 Nassidse, 327, 390. 

 Natica, 311, 325, 334, 367. 



N. canrena, 325, 368. 



N. clausa, 325, 368. 



N. heros, 367. 

 Naticidse, 325, 366. 

 Nauplius, 248, 251. 

 Nautilus, 328, 467. 

 Navicula ostrearia, 435. 

 Nekton, 23. 

 Netnalion, 76, 79. 



N. multifidum, 76, 79. 

 Nemalionaceae, 76, 79. 

 Nemathelminthes, 159, 161, 



170. 



Nematoda, 161, 170. 

 Nematophore, 118. 

 Nemerteans, 167. 

 Nemertes, 160, 169. 



N. socialis, 160, 169. 



N. viridis, 160, 169. 

 Nemertinea, 160, 167. 

 Neopanopeus, 241. 



N. texana, 241, 281. 

 Nephridia, 319. 

 Nephridium, 303. 

 Nephthydidae, 161, 177. 

 Nephthys, 161, 178. 



N. ingens, 161, 178. 



N. picta, 161, 178. 

 Nereidae, 161, 176. 

 Nereis, 161, 176. 



N. limbata, 161, 177. 



N. pelagica, 161, 177. 



N. virens, 161, 177. 

 Nereocystis, 63, 70. 



N. Lutkeana, 35. 

 Nerine, 161, 181. 



N. agilis, 161, 181. 



N. coniocephala, 161, 181. 

 Nerita, 325, 363. 



N. peleronta, 325, 363. 



N. tessellata, 325, 363. 



N. versicolor, 325. 

 Neritidae, 325, 363. 

 Neritina, 311, 325, 363. 



N. recliyata, 325, 364. 



N. viridis, 325, 364. 

 Nervous system, 247, 320. 

 Neverita, 309, 325, 368. 



N. duplicate, 11, 325, 367. 



N. recluziana, 325, 368. 

 Nicothoe, 239, 250. 



Nidorella, 204, 210. 



N. armata, 204, 210. 

 Nitophyllum, 77, 85. 



N. laceratum, 77, 85. 



N. punctatum, 77, 86. 



N. Ruprechteanum, 77, 86. 

 Noah's-ark shell, 426. 

 Node, 303. 

 Nodules, 344. 



Non-Calcarea, 100, 104, 106. 

 Norrisia, 312. 

 Nostocaceae, 48. 

 Nucula, 309, 405, 422. 



N. proxima, 405, 422. 

 Nuculidae, 405, 421. 

 Nudibranch, 328, 349, 353. 

 Nudibranchiata, 300, 324, 352. 

 Nullipores, 31, 147. 

 Nummulites, 22. 



Obelia, 125. 



O. commissuralis, 116, 125. 

 Oceania, 125. 



O. languida, 116, 125. 

 Ocinebra, 326, 384. 



O. circumtexta, 385. 



O. interfossa, 326, 385. 



O. lurida, 326, 384. 



O. poulsoni, 326, 384. 

 Octopi, 315. 



Octopoda, 301, 464, 468. 

 Octopus, 464, 468. 

 Oculina, 141, 148. 

 Ocypoda, 11, 241, 282. 



O. arenaria, 241, 274, 282. 

 Ocypodidae, 241, 282. 

 Odontophore, 303. 

 Oliva, 10, 311, 313, 327, 334, 400. 



O. literata, 327, 400. 

 Olivella, 10, 312, 327, 400. 



O. biplicata, 327, 400. 



O. boetica, 327, 401. 



O. mutica, 327, 400. 

 Olividae, 327, 400. 

 Ommastrephes, 464, 468, 469. 



O. illecebrosus, 464, 469. 

 Opercula, 193. 



Operculuin, 254, 303, 331, 355. 

 Ophiocoma, 213, 216. 



O. aethiops, 213, 216. 



O. Alexandri, 213, 216. 



O. riisei, 213, 216. 

 Ophiopholis, 213, 215. 



O. aculeata, 43, 213, 215. 

 Ophiothrix, 213, 216. 



O. angulata, 213, 216. 

 Ophiurida, 213, 215. 

 Ophiuroidea, 200, 213, 214. 

 Opisthobranchiata, 300, 324, 



349, 350. 

 Oral, 202. 



Surface, 201. 

 Orbits, 243. 

 Orchestia, 11, 43, 242, 289. 



O. agilis, 242, 289. 

 Organ-pipe coral, 151. 

 Organs of feelinp, 249. 

 Orifice, 190, 412. 

 Oscillaria, 48, 49. 

 Osphradiuni, 303, 339. 



Ossicles, 201, 203, 218. 

 Ostracoda, 238. 

 Ostrea, 405, 410, 435. 



O. edulis, 435. 



O. frons, 405, 435. 



O. lurida, 405, 435. 



O. yirginica, 310. 405, 435. 

 Ostreidae, 405, 432. 

 Otocysts, 165, 303. 

 Otter Cliffs, 43. 

 Ovalipes, 241, 276. 



O. ocellatus, 241, 276. 

 Ovicell, 190, 193. 

 Oyster-crab, 287. 

 Oyster-culture, 432. 

 Oysters, 321, 432. 



Pearl-, 430, 431, 432. 



Pacific fauual divisions. 

 Pacygrapsus, 241, 282. 



P. crassipes, 241, 282. 

 Padica, 63, 71. 



P. pavonia, 63, 71. 

 Paguridae, 240, 264. 

 Pagurus, 240, 267. 



P. bernhardus, 240, 267. 



P. longicarpus, 240, 267. 



P. pollicaris, 240, 267. 

 Palaemonetes, 240, 260. 



P. vulgaris, 240, 260. 

 Palaemon vulgaris, 260. 

 Pallial line, 303, 418. 



Sinus, 303, 419. 

 Palps, 176, 416. 

 Palpus, 258. 

 Panamic province, 312. 

 Pandora, 407, 463. 



P. trilineata, 407, 463. 

 Pandoridae, 407, 463. 

 Panopeus, 12, 281. 

 Pantopoda, 242, 296. 

 Panulirus, 240. 263. 



P. americanus, 263. 



P. argus, 240, 263. 



P. interruptus, 240, 263. 

 Papillaceous, 303. 

 Paraphyses, 72. 

 Parapodia, 171. 

 Parenchyma, 26. 

 Parypha, 123. 



P. crocea, 116, 123. 

 Peachia, 144. 

 Pearls, 430, 431. 

 Pecten, 309, 405, 435. 



P. aequisulcatus, 405, 438. 



P. dislocatus, 405, 437. 



P. hastatus, 405, 438. 



P. irradians, 405. 437. 



P. islandicus, 405, 436. 



P. jacobius, 436. 



P. magellanicus, 287, 405, 

 436. 



P. tenuiscostatus, 436. 

 Pectin idae, 405, 435. 

 Pedal opening, 412. 

 Pedata, 228, 231. 

 Pedicellariae, 201, 205, 219. 

 Pedicellina, 189, 198. 



P. americana, 189, 198. 



