1919. 



NATURAL SCIENCES OF PHILADELPHIA. 



329 



Paralichthys dentatus 298, 300 



ParexoccEtuF brachypterus 10 



mesogastei' 10 



Paulovvnia tonientosa 233 



Pedicularis canadensis 290, 291 



lanceolata 290 



palustris 290 



Pegea 166 



carnea 1 66 



Penstemon australis 251, 254 



calycosus 251, 253 



canescens 251, 254 



digitalis 251, 252 



dissectus 250, 251 



laevigatas 263 



1. canescens 254 



multiflorus 250, 252 



pentstemon 251, 252 



pubescens mult'florus £-52 



smallii 251, 253 



tenuiflorus 251, 255 



Perca flavescens 295, 299 



Petromyzon marinus 292 



Phos sloani 27 



Phthiria psi 185 



Physa solidissima 219 



Phyza fontinalis 167 



hypnorum 167 



Pimephales notatus 299 



Pisidium abditum 204 



Plagioscion monacanthus 131 



Planorbis carinatus 168 



cristatus 168 



marginatus 168 



nitidus 168 



reticulatus 168 



spirorbis 168 



vortex 168 



Planorbula obstructa 219 



Platybelone 2 



Pleurotoma tricatenaria 19 



Poecilichthys flabeliaris 300 



Pogonias cromis 296 



Polita binneyana 202 



chersinella 203 



Pollachius virens 298 



Pomatomus saltatrix 295 



Pomolobus pseudoharengus 293 



Pomotis gibbosus 295 



Pomoxis sparoides... 295 



Poronotus triacanthus 295, 300 



Potamorrhaphis guianensis 6 



Prionotus evolans strigatus.. 298 



Pseudohyalina maya 216 



opal 216 



Pseudomonacanthus amphioxj-s . . 141 



Pseudosubulina marten? Jana 314 



Psila angustata 193 



Punctum californicum 202 



Pyramidella carinata 167 



gracilis 167 



Pyramidula cronkhitei 202 



Raja erinacea 293 



Ranapalus eisenii 242 



rotundifolius 242 



Rhinanthus virginicus 269 



Rhinichthys atronasus 299, 300 



cataractffi 299 



Rhinoptera bonasus 293 



Rhombochirus osteochir 154 



Rivellia cognata 191 



Roccus lineatus 295 



Rumina 164 



decollata 164 



Russelia juncea 257 



sarmentosa 257 



Salasiella guatemalensis 213 



hinkleyi 212 



Salmo fario 29S 



formosanus 122 



Salvelinus fontinalis 293, 298 



Sarda sarda 294 



Saraphda 165 



bidentata 165 



plejd'elia 165 



tridentata 165 



unidentata 165 



uniplicata 165 



Schasicheila hinkleyi 221 



Schilbeodes insignis 299 



Schwalbea americana 289 



australis 289 



Sciaenops ocellatus 296 



Scomber colias 294 



scombrus 294 



Scomberesox saurus 6 



Scomberomorus maculatus 294, 300 



Scoparia dulcis 234 



grandiflora 234 



Scrophularia leporella 257 



marilandica 256 



nodosa 256, 257 



serrulata 257 



Seioptera 191 



albipes 192 



colon 192 



vibrans 192 



Selene vomer 295 



Semotilus atromaculatus 299 



buUaris 299 



Seoptera 191 



Seriola zonata 294, 300 



Seymeria heterophyla 26-5 



jacksoni 265 



macrophylla 264 



pectinata 265 



tenuifolia 265 



Silvius jonesi 175 



Sopronanthe hispida 242 



Sparisoma hoplomystax 138 



niphobles 150 



Spheroides marmoratus 142 



Sphyrna zygjena 293 



