INDEX. 



653 



Oyster beds of France, 378. 



., beds on Lake Fusaro, 388. 

 ,, claires of Marennes, 394. 

 ,, cultivation, 16. 

 farms at Whitstable, 396. 

 Oyster fisheries, dredge employed in, 387. 

 ,, bank, artificial, in Lake Fusaro, 

 388, 391. 



Oysters, young, 'with locomotive organs, 

 376. 



Pacific Ocean, 3. 



Pagurus Bernhardus, 517. 



Pagurus Bernhardus, 518. 



Palaemon, 525. 



Palinurus vulgaris, 511. 



Palinnrus vulgaris, 512. 



Paramecium aurelia and its parasites, 



97- 

 Paramecium aurelia and its parasites, 



102. 



Parr, or young Salmon, 581. 

 Parry's discoveries, 42. 

 Patella barbata, 430. 

 ,, ccerulea, 430. 

 ,, granatina, 430. 

 ,, longicosta, 431. 

 ,, umbella, 430. 

 Patella caerulea, P. umbella, 429. 

 Pearl fisheries, 366. Value of, 367. 



Oyster, 364. 

 Pearly Nautilus, 472. 

 Pecten glaber, P. japonica, P. opercu- 

 laris, P. plica, P. pseudamussium, 308. 

 Pecten glaber, 401. 

 ,, japonica, 405. 

 opcrcularis, 402. 

 plica, 405. 

 ,, pseudamussium, 401. 

 Pectenidse, 308. 

 Pectunculus aureflua, Delessertii, P. 



pectiniformis, P. scriptus, 353. 

 Pectunculus aureflua, 352. 

 ,, Delessertii, 352 



pecteniformis, 353. 

 ,, scriptus, 353. 



Pennatula phosphorea, 241. 



,, spinosa, 241. 



Pennatula spinosa, 242. 

 Pennatulidae, 240. 

 Pentacrinus, 265. 



caput Medusae, 265. 



Pentacrinus, europseus, 269. 

 ,, fasciculosus, 264. 

 Pentacrinus caput Medusa, 265. 



,, europ&us, 266. 



Perch (common), skeleton of, 5-S. 

 Perforated madrepores, 184. 

 Petromyzon, 534. 

 Peyssonnel's discoveries, 225. 

 Phallusia grossularia, 310. 

 Pholades, or borers, 326. 

 Pholas crispata, P. papyracea, and P. 



melanoura, 326. 

 Pholas crispata, 327. 



dactylus, 325, 326. 



,, melanoura, 328. 



,, papyracea, 328. 

 Phorus conchyliophorus, 433. 

 Phosphorescence of the sea, 88. Causes 



of, 313- 



Phosphorescent chain of Salpae k , 313. 

 Phyllactis prsetexta, 215. 

 Phyllactis pr&texta, 216. 

 Pf]ysa castanea, 416. 

 Physa castanea, 417. 

 Physalia, 140. Its poisonous proper- 

 ties, 143. 



Physalia utriculus, 148. 

 Physophora hydrostatica, 136. 

 Physophora hydrostatica, 137, 139, 141. 

 Picked dog-fish, the, 550. 

 Pilchards, Cornwall, 599. " Huers, " ib. 



The pilchard fishery, 60 1. 

 Pilchard, the, 600. 

 Pinna bullata, P. nobilis, 371. 

 Pinna bullata, 372. 



,, nicrina, 371- 



,, nobilis, 372. 



,, rudis, 371. 



Pinnoctopus cordiiformis, 493. 

 Pinnoctopus cordiiformis, 493. 

 Pipe-fish (Syngnathus), 562. 

 Pipe-fish, the, 563, 622. 

 Pisa tetraodon, 507. 

 Pisa tetraodon, 507. 

 Plaice (common], the, 608. 

 Plaice (Platessa vulgaris), 608. 

 Planorbis corneus, 416. 

 Planorbis corneus, 416. 

 Pleurobrachia, 250. 

 Pleuronectidse, 605. 

 Plumatella cristallina, 305. 

 Plumatelia cristallina, 306. 



