1910.] 



NATURAL SCIENCES OF PHILADELPHIA. 



709 



Periplaneta americana 5, 586 



australasia? 5 



brunnea 586 



Phalusia mammilata 43 



Phasmidae 6, 587 



Phegopteris hexagonoptera 546, 578 



Philosamia cynthia, 295, 297, 301, 302, 



318 



Phlox pilosa 548, 582 



subulata 54s. 549, 572 



Photogenis ariommus...: 288 



cseruleus 282 



callistius 281 



leucops 291 



1. engraulinus 291 



luciodus 288 



pyrrhomelas 283 



sea briceps 288 



spilopt en is 282 



stigmat urus. 2 81 



telescopus 289 



Phyllodromia borealis 422, 423 



Phyllodrominae 408 



Phylloscyrtus pulchellus....598, (110.649 



Physa 42, 53 



caliban CCS 



cubensis 668 



pomilia 668 



virgata 144 



Physarum pulcherrimum 272 



Pie'ris mariana 547, 548, 570 



Pinus rigida 545, 547, 548, 550 



virginiana 548, 553 



Pisidium abditum 672 



a. huaclmcanum 52, 144 



novaboracensis 672 



volutabundum (571 



Placostegus 495 



?assimilis 494 



incomptus 495 



tridentatus 495 



Placuanimia rudis 496 



Plagostegopsis 495 



Planorbis alabamensis 669, 670 



a. avus 669 



dilatatus 669, 670 



exacutus 670 



imus 669 



rubellus 669, 670 



uliginosus 668 



Plargyrus bowmani 283, 284 



Platamodes pennsvlv; nica, £22, 423, 



425, 427 



unicolor 436 



Platyrhina triseriata 469, 470 



Platvrhinoidis triseriatus ..469, 470 



Platystoma 533 



Plecotrema cubensis 667 



Plectocyclotus 533, 533 



Pleurodonte acuta 515 



a. acuta 515 



a. goniasmos 514 



Pleurodonte acutissime 515 



anomala 515 



(Dendrocochlis) aspera 515 



bainbridgei 514 



cara 515 



conspurcatella 507 



(Eurycratera) jamaicensis 515 



i j. cornea 510 



lamarckii 515 



nannodonta 514 



nobilis 514 



otis 502, 504 



(Labyrinthus) otis 504, 505 



o. annulii'era 504 



o. erecta 505 



(Labyrinthus) o. orthorhinus, 



502, 505 



o. subplanata 504, 505 



o. sipunculata 504, 505 



pera cut issima 515 



picturata 515 



(Labyrinthus) plicata 505 



p. marmatensis 505 



pretiosa 514 



sinuata 515 



(Labyrinthus) tenaculum 506 



uncigera 502 



(Labyrinthus) uncigera 506 



(Labyrinthus) u. chiriquensis. 50(5 



Poa pratensis 583 



Pcecilozonites bermudensis, 665, 667 r 



oos 



circumfirmatus 665-668 



goodei 665, 666 



reinianus 666 



Polycodium candicans 582 



stamineuin 546, 570 



Polyodontiche 604 



Polygala sanguinea 567 



senega 567 



verticillata 567 



Polygonum arit'olium 580 



sagittatum 580 



scandens 580 



tenue 545, 548, 562 



Polygyra 96 



albolabris 21-40 



a. alleni 21 



a. dentata 21 



a. fusca 21 



a. fuscolabris 21 



a. major 21 



a. maritima, 21, 24, 26, 28, 31, 38 



a. minor 21, 24, 27, 28, 31, 38 



a. traversers, 21, 24, 27, 28, 31 , 3S 



appressa sculptior 665 



chiracahuana 40 



microdonta 664 



plana 664, 666, 667, 668 



Polynoe (?) aciculata 367 



brevisetosa 329 



calif ornica 331 



