1905.] 



NATURAL SCIEx\CES OF PHILADELPHIA. 



969 



vSeriolinse 62 



Sermyle physconia 840 



Serpula barbata 4 



habrogramma 4 



Serpulidse 4, 18 



Sesuvium portulacastrum 696, 698 



Siajis microlepis 483 



Sialia mexicana 690 



Sicj-os angulatus 700 



Siderite 880 



Siderolite 882 



Sigmodon hispidus eremicus 677 



Silica 869, 871, 878, 882, 895, 896 



Siliqiia cretacea 17 



iutuspurpurea 118 



hicida 118 



Siliqiiaria biplicata 17 



pauperata 21 



Siluridse , 462 



Silurinse 463 



Silunis micronemus 469 



Siplionalia fusoides 103 



liinnulus 103 



liyperodon 103 



longirostris 103 



mikado 103 



pseiidobuccinum 103 



spadicea 103 



semiplicata 103 



stearnsii 103 



vanattai 103 



Sistrum cancellatum 292 



undatum 292 



Sisyrynchium bermudianum....698, 699 



Sitala angulifera 745 



circumcincta taiwanica 745 



conulus 745 



hirasei 744,745 



insignis 745 



trochulus 744 



t. formosana 744 



Solariella 115 



Solarium abj'ssina 20 



Soleidse 517 



Solemya planulata 17 



Solenia tumidula 6 



Solenidse 17 



Solenoceras annulifer 27 



Solidago sempervirens 698, 699 



Solonoceras 27 



Solyraa lineolata 17 



Soiiorella 222, 225, 253-255, 261 



arizonensis 262 



ashmuni 251,259 



daUi 259, 265, 266 



goldmani 257 



granulatissima 256, 261-265 



g. latior 264, 265 



g. parva 264 



hachitana, 254, 256, 257, 259, 260, 

 261,265,266,268 



Sonorella h. ashmuni 256, 257, 259 



h. bowiensis 256, 260, 261, 266 



lolirii 254 



mearnsi 259, 264, 265 



nelsoni 257,2o7 



roweUi 256, 261, 262 



virilis 256, 260, 266-268 



V. circumstriata 256, 267 



V. huachucana 267 



wolcottiana 254 



Spanionyx bidens 840 



Spatangus cor-marinum 7 



parastatus 7 



Stella 7 



ungula 7 



Spatula ch'peata 688 



Spermestes cucullatus 779 



Sphceriola umbonata 14 



Sphenodiscus lenticularis var. mis- 



sissippiensis 28 



Sphinx euphorbia 141 



Spiranthes brevilabrus 697 



Spiropalpus 308 



Spirorbis? rotula 4 



Spizella breweri 684 



socialis arizonse 684 



Spondylidce 12 



Spondylus capax 12 



gregale 12 



Spreo superbus 781 



Stagmatoptera insatiabilis 840 



Stagmomantis 794 



androgyna 794, 840 



Carolina 33, 53 



dimidiata 840 



heterogamia 840 



montana 795 



nahua 794,840 



theophila 840 



tolteca 794,840 



venusta 794,840 



Statice lefroyi 696 



Steirodon 807 



prasinus 807 



thoracicus 807 



validum 807,842 



Stelgidopteryx serripennis 767 



Stenacris chlorizans 39, 53 



Stenophora '••89, 91 



julipusilli 90,91,99 



nematoides 91 



(Cnemidospora) spiroboli..90, 93, 94 

 Stenotaplirum americanum, 696, 698, 



699, 700 



Stenothyra formosana 749 



glabra 749 



Stephanibex coronatus 759 



Sterna antillarum 687 



dougalli 687 



elegans 687 



hybrida 758 



