INDEX. : 
Parlatoria Pergandei, new variety 
of, 62. ~ 
Parmarion, new species of, 435. 
Parodon, new species of, 480. 
Peloneustes philarchus, on the struc- 
ture of the skull in, 242. 
Perez, J., on the production of males 
and females in Melipona and Tri- 
gona, 125, 
Perichzeta, new species of, 41, 69. 
Perichztide, on some Javan, 40. 
Perisseretma, characters of the new 
genus, 468. 
Perophora, on budding in, 213. 
Petta, characters of the new genus, 
469, 
Phenacoccus yuccee, new variety of, 
61. 
Pholadid, on the development of 
the, 233. 
Phycita, new species of, 347. 
Physalia, on the origin of the bell- 
nucleus in, 203; on the proto- 
plasmic connexion of lasso-cells in, 
271. 
Pilsbry, H. A., ona new Pupoid type 
of Helicidee, 155; on the status of 
the names Aplysia and Tethys, 424. 
Pimpla, new species of, 445. 
Pionea, new species of, 340. 
Planchonia, remarks on the genus, 
134. 
Planema, new species of, 415. 
Platyhelminthes, on the structure of 
the ectoderm and nervous system 
in parasitic, 495. 
Pleonectusa, new species of, 301. 
Pleurotoma, new species of, 3. 
Pocock, R. L, on some Solifugee in 
the British Museum, 74; on two 
new spiders from Mt. Roraima, 
139; on new genera and species of 
trapdoor spiders, 187 ; on some of 
the types of Mygalomorphee in the 
British Museum, 223; on a new 
sound-producing organ in a spider, 
230; on the name of Galeodes 
intrepidus, 270 ; on new genera of 
Zephroniide, 409; on a new 
species of Scolopendra, 423. 
Podabrus, new species of, 109. 
Ponsonby, J. H., on new species of 
Ennea, 478. 
Pontiothauma, characters of the new 
genus, 2. 
Pontceciella, characters of the new 
genus, 186, 
499 
Popilia, new species of, 403. 
Prionocyphon, new species of, 105. 
Pristurus, new species of, 165. 
Proboscina, observations on the ge- 
nus, and new species of, 447. 
Psammodius, new species of, 384. 
Pteropontius, characters of the new 
genus, 184, 
Ptilodactyla, new species of, 107. 
Pupina, new species of, 364. 
Pupinella, new species of, 365, 
Pyralide, new Indian, 299; new 
West-Indian, 529; new genera 
and species of, 461. 
Pyvralis, new species of, 464. 
Radiolaria, on the occurrence of, in 
chalk, 270. 
Rainbow, W. J., on some New South 
Wales Araneide, 352. 
Reptilia, new, 28, 32, 165, 171, 408, 
481. 
Rhacophorus, new species of, 169. 
Rhax, new species of, 91. 
Rhectothyris, new species of, 471. 
Rhipidoceridz, on the Japanese, 35. 
Rhizotrogus, new species of, 399. 
Rhodoneura, new species of, 298, 
Rhodostrophia, new species of, 331. 
Rhynchomys, characters of the new 
genus, 160. 
Rhynchomyzon, characters of the 
new genus, 177. 
Rhysota Armiti, on the synonymy 
of, 201, 351. 
Robinsonia, new species of, 36. 
Roule, L., on the development of the 
body in the prawn and the cray- 
fish, 127. 
Sagitta, new species of, 290. 
Samea, new species of, 336, 
Sameodes, new species of, 303, 
Sand-eel, on the life-history and 
growth-rate of the lesser, 282. 
Saprosites, new species of, 382. 
Scirtes, new species of, 105. 
Sciurus, new species of, 197, 242, 
Scolia, new species of, 441. 
Scolopendra, new species of, 423. 
Scott, T. and A., on new and rare 
British Copepoda, 353, 
Scytodes, on stridulating-organs in 
the genus, 371. 
Seaweeds, on the dispersal of marine 
animals by means of, 418. 
Senoclia, new species of, 446. 
Serica, new species of, 391. 
Sericania, new species of, 390. 
