1901.] 



NATURAL SCIENCES OF PHILADELPHIA. 



851 



Ophiocoma getulus 76, 77 



g. boylii 78 



g. californine 78 



g. getulus 77 



g. sayi 76 



g- niger 77 



g. splendidus 7G 



leonis 613 



multistratus 7^, 75 



pyrrhoraelas 79, 613 



rhombomaculalus 79 



sayi 76 



splendidus 76 



zonatus 79, 613 



Ophiocten kroyeri 177 



sericeum 177 



Ophioglypha robusta 176 



sarsii 176 



struwitzii 181 



Ophiolepis fasciculata 177 



robusta 176 



sundevalli 17S 



Ophiopholis aculeata 178, 181 



bellis 17S 



Ophiura fragilis 179 



sarsii 176 



sericea 177 



squamosa 176 



Ophiuroidea 176 



Opuutia spiuossissima 559 



tuua 559 



Orbitoides 516 



mantelli 514-518 



Orchomenella iiiinuta 167 



Oreodoxa oleracea 557 



Ortbemis ferru^iiiea 128 



Orthetrum ''. 127 



( )rycturopus 366 



Osceola 70 



annulatus 75 



doliata triangula 73 



elapsoidea 74 



syspilus 75 



Ostracoda 145 



Oxyliaboa ferretti 276 



Oxyopes 568 



pictipes 587 



Oxyopbthalma gracila 286 



()xyopida3 587 



Oxypila annulata 286 



Pacbylomerus 568 



modestus 570 



Pacbytylus migratoroides .... 372 



Paliana 350 



Pallene discoidea 166 



hispida 106 



Palophus reyi 288 



Paludina 188 



Pampbaginai 375 



Pandalus borealis 161 



Panicum colonum 558 



birsutum 558 



maximum 558 



Panopeus 2 



Pantala hymensea 128 



Papillina 513 



Papio 124 



Paradulichia typica 154 



Parampliitboe bicuspis 150 



megalops 152 



Paraphlebia 131, 133, 136 



Parapolia aurantiaca 688 



Paraspbeudale minor 285 



Paratylus smitti 167 



Paroedicerus lynceus 149 



Pardosa glacialis 569, 587 



luteola 5S7 



sterualis 587 



Parnasnus griseus 588 



Paspalum disticbum 558 



paniculatum 558 



platycaule 558 



virgalum 558 



Passitlora coerulea. 557 



laurifolia 558 



perfoliata 558 



Patella grata 202 



luchuana 202 



pallida 202 



Patellidte 202 



Pecten poulsoni 514-517 



Pellenes birgei 592 



cockerelli 591, 591 



coguatus 592 



birsutum 591 



klauserii 593 



oregonense 591 



politus 592 



Penicillium crustaceum 541 



Pentadactylogascer oculatus.. 174 



Pentatomidge 264 



Pereskia aculeata 559 



Periplaneta atricolli.s 275 



wablbergi S75 



Peristernia crocea 390 



infracincta 197 



scabrosa 390, 391 



ustulata 198 



ustulata var. Ir.cbuana 197, 390 



xantbostoma 390 



Perodicticus 121, 122 



Persea gratissima 560 



Petasia grisea 375 



sp 375 



Petricola cyclus 204, 205, 400 



cj'clus var. sculpt urata . . . 400 



