Pelagia, 133, 139. 
P. cyanella, 133, 139. 
Pelagic, 23. 
Flora, 38. 
Pelecypoda, 301, 320, 321, 405, 
409, 420. 
Classification of, 419. 
Peltogaster, 239, 256. 
Pen, 467. 
Penzus, 240, 260. 
P. brasiliensis, 240, 260. 
P, setiferus, 240, 260. 
Penicillus, 51, 58. 
P. capitatus, 51, 58. 
P, dumentosus, 51, 58. 
P. Phoenix, 51, 58. 
Pennaria, 124. 
P. gibbosa, 116, 124. 
P. tiarella, 116, 124. 
Pennatula, 141. 
P, aculeata, Plate XLVII. 
P. borealis, Plate XLVII. 
Pennatulacea, 141, 153. 
Pentaceros, 204, 210. 
P. occidentalis, 204, 210. 
P. reticularis, 204, 210. 
Pentacerotidz, 204, 210. 
Pentacrinus, 234, 235. 
Pentacta, 228, 292. 
P. frondosa, 43, 228, 232. 
Pentagonasterida, 204, 209. 
Pericardium, 341, 416. 
Pericolpa, 133, 136. 
P. quadrigata, 133, 136. 
Peridiniez, 38. 
Periostracum, 303, 425, 
Perisaltic, 172. 
Perisarc, 118, 119. 
Peristome, 190, 194, 218, 303. 
Peristomium, 176. 
Periwinkles, 371. 
Perna, 405, 432. 
P. ephippium, 405, 432. 
Peromedus2, 133, 136. 
Petricola, 407, 452. 
P. carditoides, 407, 452. 
P. pholadiformis, 407, 452. 
Petricolidz, 407, 452. 
Petrocelis, 78, 95. 
P. cruenta, 40, 78, 95. 
Petrolisthes, 240, 270. 
P. armatus, 240, 270. 
P. sexspinosus, 240, 270. 
Peyssonnelia, 78, 95. 
P. Dubyi, 78, 95. 
Phzophycee, 28, 61, 62. 
Phanerogams, 25. 
Phanerozonia, 204, 208. 
Phascolosoma, 162, 186. 
P, Gouldii, 162, 186. 
Pholadidz, 407, 460. 
Pholas, 407, 460. 
P. californica, 407, 461. 
P. costata, 407, 461. 
P. truncata, 407, 461. 
Phoxichilidium, 242, 297. 
P, maxillare, 242, 297. 
Phyla, 1g. - 
Phyllitis, 62, 66. 
- P. fascia, 62, 66. 
Phyllodoce, 161, 175. 
P. gracilis, 161, 175. 
Phyllodocidz, 161, 175. 
INDEX 
Phyllolithodes, 240, 271. 
P. pap ilosus, 240, 271. 
Phyllonotus pomun, 382. 
Phyllophora, 76, 81. 
P. Brodizi, 76, 82. 
P. membranifolia, 76, 82. 
Phyllopoda, 238. 
Phyllospora, 63, 73. 
P. Menziesii, 63, 73. 
Phylun, 19. 
Phyncopodia helianthoides, 
a 
107. 
Physalia, 131. 
P. arethusa, 117, 131. 
Pikea, 78, 94. 
P. calitornica, 78, 94. 
Pill-bugs, 291. 
Pinna, 405, 431. 
P. muricata, 405, 431. 
P. seminuda, 405, 431. 
Pinnotheres, 241, 287. 
P. maculatum, 287. 
P. ostreum, 241, 287. 
Pinnotheriidz, 241, 287. 
Pitho, 241, 286. 
P. aculeata, 241, 286. 
Placunanomia, 405, 425. 
P. macrochisma, 405, 425. 
Planaria, 160, 167. 
P. grisea, 160, 167. 
Planarians, 166. 
Planarian worms, 12. 
Plankton, 21, 23. 
Planocera, 160, 166. 
P. nebulosa, 160, 166. 
Planula, 120, 135. 
Platyhelminthes, 159, 
164. 
Platyonichus ocellatus, 276. 
Pleurobrachia, 154, 156. 
P. rhododactyla, 154, 156. 
Pleurococcus, 26. 
P. vulgaris, 25. 
Plocamium, 77, 85. 
P. coccineum, 77, 85. 
Plumularia, 127. 
P. falcata, 116, 127. 
Plumularians, 116, 127. 
Pluteus, 201, 220. 
Polian vessels, 201. 
Polina, 160, 170. 
P. glutinosa, 160, 170. 
Polycheta, 161, 172. 
Polycirrus, 161, 182. 
P. eximius, 161, £82. 
Polycladida, 160, 165. 
Polyides, 78, 95. 
P. rotundus, 78, 95. 
Polymastia, 100, 106. 
P. robusta, 100, 106. 
Polynices, 12, 310, 314, 325, 
335, 367. 
P. duplicata, 11, 325, 344, 
160, 
367. 
P. heros, 3, 10, 44, 325, 343, 
367. 
P. lewisii, 325, 368. 
P. recluziana, 325, 368. 
P., triseriata, 325, 367. 
Polyneé, 161, 174. 
P. squamata, 161, 174. 
P. sublevis, 161, 174. 
Polyphemus, 238. 
487 
Polypide, 190, 192. 
Polyplacophora, 300, 321. 
Polyps, 111, 114, 119. 
Polysiphonia, 77, 87. 
P. Baileyi, 77, 88. 
P. dendroidea, 77, 87. 
P. fastigiata, 43, 77, 87. 
P. fibrillosa, 77, 88. 
P. Harveyi, 77, 88. 
P. nigrescens, 77, 87. 
P. Olneyi, 77, 88. 
P. parasitica, 77, 87. 
P. urceolata, 77, 88. 
P. urceolata, var. formosa, 
17, 88. 
P. variegata, 77, 88. 
P, violacea, 44, 77, 88. 
P, Woodii, 77, 89. 
Polyzoa, 8, 188, 191. 
Polyzoans, 8, 12, 22, 
Pontonema, 161, 170. 
P. marinum, 161, 170. 
Porcelanous, 304, 345. 
Porcellana, 240, 269. 
P. sayana, 240, 269. 
Porcellanasteridz, 204, 208. 
Porcellanide, 240, 269. 
Porcupine Island, 42. 
Porifera, 100, 101. 
Porites, 147. 
P. astrzaoides, Plate XLV. 
P. furcata, Plate XLV. 
Porocidaris, 217, 222. 
P. sharreri, 217, 222. 
Porphyra, 48, 78, 96. 
P. laciniata, 78, 96. 
P. vulgaris, 38, 78, 96. 
Porpita, 132. 
Portunidz, 241, 274. 
Prawns, 258, 259. 
Preserving invertebrates, 14. 
Prionitis, 78, 94. 
P. Andersonii, 78, 94. 
P. lanceolata, 78, 94. 
Proboscis, 333. 
Procerodes, 160, 167. 
P. frequens, 160, 167. 
Propodium, 335. 
Prosobranchiata, 300, 324, 
349, 355- 
Prostomium, 176, 243. 
Protista, 22. 
Protobranchiata, 301, 405, 
420, 421. 
Protococcacee, 38, 
Protococcus nivalis, 25, 33. 
Protophyta, 21. 
Protozoa, 21, 101, 
Pseudolamellibranchiata, 
301, 405, 420, 429. 
Psilaster, 204, 209. 
P. flora, 204, 209. 
Psolus ephippiger, 231. 
P. fabricii, 232. 
Pterogorgia acerosa, Plate 
XLVI. 
Pteronotus, 326, 384. 
P. festivus, 326, 384. 
Ptilota, 78, 92. 
P. densa, 78, 92. 
P. elegans, 78, 92. 
P. hypnoides, 78, 92. 
P. serrata, 78, 92. 
