1909.] 



NATURAL SCIENCES OF PHILADELPHIA. 



603 



Xeriene emarginata 206 



gemma 206 



maculosa 205 



postica 206 



Nerium oleander 487 



Nomonyx dominicus 355 



Nostoc 107 



Nothoscordium bivalve 490 



Notomastus tenuis 277 



Numida meleagris 357 



Nvcticorax violaceus 357 



Nymphaea odorata. .391, 392, 394-396 



Ocyale (Micrommata) undata 553 



Odontosyllis phosphorea 327 



Odynerus 13 



<Ecanthus californicus 483 



fasciatus 175 



niveus 483 



quadripunctatus 175 



tEdaleonotus truncatus 470 



<Edicnemus dominieensis 356 



<Edipoda 7 



(Enothera biennis 380, 387 



Onuphida? 253 



Oonopida? 196 



Opeia imperfecta 137, 138 



obscura 138 



testacea 142, 425 



Ophiodromus 243, 336 



Opsanustau 407 



Opuntia vulgaris 382 



Orehelimum minor 479 



Oreohelix 511 



strigosa concentrata 497, 511 



s. huachucana 496, 512 



Orphulella affinis 428 



compta 427 



pelidna 142 



picturata 142 



Oscillaria 107 



Osmunda cinnamomea 389, 486 



spectabilis 486 



Oxyopeidon putum 219 



Oxyopida? 219 



Pachycheilus 538 



atratus 521, 522. 524-528 



a. ganinus 525 



a. suprastriatus 526, 528 



dalli 519,531 



ganinus 527 



humerosus ...521, 522, 525, 526 



moctezumensis 522 



monachus 527 



pila 521, 522, 523, 525 



p. pilula 522 



pleurotoma 519, 529, 530 



pluristriatus 519, 523, 524 



p. longus 524, 525 



p. tamasopensis 524 



Pachycheilus saussurei 529 



suturalis 529, 530 



tristis 522, 527 



vallesensis 528, 529 



v. attenuatus 528 



Pachylomerus rugosus 195 



Palpimanidae 300 



Palpinus laevis 230 



Paludestrina stearnsiana 516 



Paludina 107 



Paludomus 519, 521 



Pandion haliaetos 359 



Panicum crus-galli ...391, 392, 394, 397, 



398 



virgatum 380, 386-392, 394 



Panorpa 19 



Papaver rhceas 491 



Parabacillus 119 



coloradus.... 112, 119, 419 



Paratettix mexicanus 130 



toltecus 419 



Pardosa falcifera 219 



prolifica 219 



uncatula 219 



Parompala 132 



acris 134, 135 



calamus 116, 133, 134 



cylindrica 133 



dissimilis 132, 133 



pallida. 132, 133, 422 



perpallida 133 



virgata 112, 116, 132-134, 423 



wyomingensis 133 



Parula americana 364 



Patula strigosa 496 



s. concentrata 497 



Pectinaria brevicoma 277 



Pedicellaria pentaphylla 491 



Pelayo insignis 199 



Pelecanus fuscus 355 



Peltandra virginica 387, 398 



Peisidice aspera 242 



Peperomia magnoliaefolia micro- 



phylla 490 



septentrional is 490 



Peripatus 313 



Petrochelidon fulva 364 



Petromyzon marinus 407 



Peucetia 302 



viridans 219 



Phalangida 225 



Phalangium ornatipes 231 



Phanias marginalis 224 



Phaseolus lunatus 492 



Phasmidaa 119, 419 



Phassus 20,22 



schamyl 21 



Phidippus 549, 550, 560 



chrysis * 220 



disjunctus 220 



funebris 220 



