667 
Planicellaria ociilata, Orb. +, 315. 
Planispiriiiii, Sei/., 609. 
— auriculatii, Ei/y., 609. 
Plankiwistridla inammiUmis, Linidenf., 489. 
Plankton, Crustacean, of English Lakes, 
411-447. 
Planorbiilina, Orb., 63o. 
— larvata, Brady, 63o. 
■— niediterranensi.s, Orb., 635. 
— rxibra, Orb., 638. 
— tulgaris vai'. larvata, Park. & Jones, 
• 035. 
Plecanium rwjosum, lieuss, 018. 
Pleotoptei-a, wing venation in (Tillyard), 
143-16L'. 
Pleurobranclms (pars), Beryh, 536. 
— ornatus, Ckeesm., 538. 
Plover, Ringed, courtship activities, 287. 
Policella australis. Gray, '2\, 22. 
Polyaspiniis cylindricus, Bert., 376, 393. 
Polymastia, Bowerb., 509. 
— niauimillaria, Boiverb., 479, 509. 
Polymorphiua, Orh., 625. 
^ communis, Orb., 625. 
— problema. Orb., 625. 
— regina, Brady, Park. Sf Jones, 626. 
Polyphemus pediculus, Straus, 42o; distrib., 
" 414, 418, 424. 
Polypterus larvae, 85. 
Polystomella, Lam., 640. 
— crispa, Brady, 640. 
— macella, Brady, 640. 
— millettiaua, Heron-All. ^- Earl., 040. 
— striato-punctata, Brady, 640. 
— verriculata, Millett, 640. 
Polytrema, Risso, 039. 
— miniaceum, Brady, 639. 
var. alba. Carter, 639. 
Polyzoa, Cellularine, 293. 
Pontharpinia, Stebb., 4, 5. ■ 
— ■ I'ostrata {Dana), 5, 6. 
— uncinata, Chev., 6. 
— villosa, Tatt., 6. 
Porcellana, A7ew, 28, 31, 56. 
Poroellanopagrurus, Filh., 2S, 56. 
Poricellarja-, Orb. t, 315, -322. 
— alata, Orb. f, 315. 
Poroellio ci'istatns, Dotlf., 107, 
Porooriuus, Bill., 94. 
Portunion, Giard, 86, 90. 
Postgeuse of CLloi'ops, 405. 
Potamobius, Leach, 39. 
Powder-post beetles, 217-227. 
Prionocidaris baculosa var. annulifera, 
Mortensen, 248 ; distrib., 2.32. 
— bispinosa var. chinensis, Doderlein, 
248 ; distrib., 232. 
Prodinychus, Berk, subgen., 379. 
Prorodon, Ehrenb., mentd., 450. 
Protereisma sp. t, wing-veins, 144-161. 
Protocaroinus, 52. 
Protolfelaps, Berl., subgen., 363. 
Protozoa, 83 ; from iSpitsbergen, 449. 
Psammopemraa crassum, Lendenf., 479, 511. 
Pseudoboletia Indiana, A. Ayassiz, 249; 
distrib., 232. 
Pseudoesperia carteri, Dendy *, 479, 500, 
503, 519. 
— enigmatica, 500. 
— trichophora, Dendy *, 479, 509. 
Pterodoris, Ehrenb., 553. 
— picta, Ehrenb., 553. 
Pteroides griseum, 23. 
— hymenocaulon, Broch, 21, 23. 
— malayense, 23. 
— sp., 22. 
Ptilinum of Chlorops, 404. 
Ptychodera capensis, Gilchr., 393-398. 
— flava, 397. 
— minuta, 397. 
— natalensis, Gilchr., 393. 
— proliferans, Gilchr., 393-398. 
Pulvinulina, Park. (§■ Jones, 636. 
— canarieusis, Brady, 636. 
— concentrioa, Park. ^- Jones, 036. 
— crassa, Brady, 636. 
— elegans, Brady, 637. 
— lateralis, Brady, 636. 
— • repanda, Brady, 636. 
— truncatulinbides, Heron-All. S; Earl., 
636. 
Pygopodes, courtship activities, 266. 
Quadrula irregularis. Arch., 453, 457, 471. 
Quercus Robur, Linn., mentd., 219. 
Quinqueloculina aubcriuna, Orh., 607. 
— bicostata, Orb., 607. 
— bosciana, Orb., 606. 
— cordorta, Orb., 608. 
— cuvieriana. Orb., 607. 
— dilatata, Orb., 604. 
— ferussacii. Orb., 608. 
