1911.] 



NATURAL SCIENCES OF PHILADELPHIA. 



631 



Saxifraga nivalis 68, 74, 83, 95 



punctata 74 



Scalpellum gracilis 173 



hendersoni 172 



proximum 282 



Scaphandridae 339 



Scaphiopus conchii 223 



hammondi 223 



Scaphopoda 165 



Sceloporus biseriatus 228 



clarkii 227 



consobrinus 227 



couchi 228 



graciosus 228 



jarrovii 227 



magister 227 



merriami 228 



occidentalis 228 



Schilbeodes 4 



gyrinus 9 



Schizocephala chalybsea 325 



Sciaenops ocellatus 16, 203 



Scirpus lacustris var. occidentalis 74,91 



maritimus 30 



validus 30,74,79 



Scleropages guntheri 220 



leichardti 220 



Scomber scombrus 12 



Sconsia laevigata 356 



Scotina 442 



Scotinella 442 



pallida 442 



Scotolemon brunnea 456 



Scutellaria 66, 76 



Scytodes thoracica 440 



Scytodidae 440 



Sedum debile 86 



glandulosum 35, 74 



Selene vomer 16 



Semele sayi 368 



Semotilus 4 



atromaculatus 7 



bullaris 7 



Senecio 35,74,93 



Sergiolus cyaneoventris 441 



variegatus 441 



Seriola zonata 16 



Serrasalminae 424 



Serrasalmo albus 432 



(Pygocentrus) notatus 428 



Serrasalums aesopus 432 



brandtii 432 



caribe 432 



coccogenis 428 



elongatus 432 



gibbus 432 



gymnogenys 432 



humeralis 432 



iridopsis 432 



maculatus 432 



marginatus 432 



paraensis 432 



Serrasalums rhombeus 432 



spilopleura 432 



unimaculatus 432 



Serripes grcenlandicus 536 



Seserinus paru 16 



Shepherdia argentea 26, 75, 80 



canadensis .' 75 



Sidalcea malvaeflora 75, 84, 85 



Sigaretus gatunensis 360 



(Lupia) gatunensis 360 



perspectivus 360 



Sigmataxis laeviusculus 575 



Signalosa mexicana 211 



Silene acaulis 75, 93, 98 



antirrhina 75 



menziesii 35, 75, 99 



multicaulus 40, 75, 90 



scouleri 75 



Siluridae 433 



Singa truncata 450 



Sisymbrium canescens 32, 75, 90 



Sium cicutaefolium 75, 88, 95 



Smilacina amplexicaulis, 27,75,81,82.91 



stellata 75, 88 



Solanum tuberosum 76, 81 



Solariidse 360 



Solarium alveatum 337 



gatunense 860 



granulatum 360 



g. gatunensis 360 



quadriseriatum 360 



Solecurtus gatunensis 372 



strigillatus 372 



Solenida?.. 372 



Solenosteira 338 



anomala 349 



dalli 348,349 



elegans 349 



mengeana 349 



pallida 349 



vaughani 349 



Solidago canadensis 76, 86 



nemoralis 76, 86 



spectabilis 76 



Sonchus asper 76, 85 



Sonorella 176, 178, 179 



coloradoensis, 174, 176, 178, 179,184 



Spartina gracilis 76, 86 



Sphaeralcea emoryi 76, 82, 89 



malvastrum 76 



rivularis 76, 90 



Spha?riidae 198 



Spheroides maculatus 16, 203 



Sphodromantis 322 



lineola 322 



rudolfae 322 



Sphodropoda rudolfae 822 



Sphyrna zygsena 5 



Spintharus flavidus 446 



Spiraea caespitosa 39, 76, 93 



millefolium 40 



Spiranthes romazoffiana 76, 91 



