358 



CALIFORNIA ACADEMY OF SCIENCES. 



Sialla arctica 60 



mexicana 50 



Slcydlum 56 



plumieri 56 



Slcyopteris 56 



gymnogaster 56 



salvinil 56 



Sidalcea malvseflora 202, 208 



Sierra Madre 189 



Silene conoidea 202 



laciniata 207 



simulans 207 



Silurid8B 1 20, 172 



Silurus bagre 148 



chilenis 149 



megacephalus 134 



quadrimaculatus 134 



sapipoca 126 



Simiolus 261 



SimmondsiaCalifornica. 237 



Sisymbrium 227 



canesceus 227 



reflexum 207 



Sisyrinchium bellum 217 



Sitta canadensis 50 



Solanum elsaguifolium '2'H 



nigrum var. Douglasii 215 



Xanti var. Wallacei 215 



Solidago Californica 211 



Sonchus asper 214 



oleraceus 214 



Song sparrow, Brown's 197 



Description of a new subspecies 



from Lower California 197 



Samuel's 8 



Sorubim 138 



caparary 138 



infraocularis 138 



jandia 139 



lima 138 



pirauaca 139 



Sorubimichthys 139 



gigas 139 



ortoni 139 



planiceps 139 



spatula ... 1 39 



Sphacele calycina 215, 267 



var. glabella 267 



var. Wallacei 268 



fragrans 215,268 



Sphseralcea 228 



Sphaerozosma pulchrum. 79 



Sparrow, Gambel's 47 



Sparrow, golden-crowned 47 



western chipping 47 



Specularia biflora 203 



Speotyto cunicularia hypogaea 45 



Spinus psaltria 47 



tristis 8 



Spiraea discolor 203 



Spirogyra Grevilleana 79 



tenuissima 79 



Spizella soclalis arizonae 47 



Stachys acuminata 216 



bullata 216 



coccinea 235 



Slaphylea geniculala 228 



Staurastrum arctiscon 80 



avicula 80 



commutatum 79 



coronulatum 79 



dejectum 80 



Dickiei 80 



echinatum 80 



inconspiouum 80 



muticum 80 



Sebaldi 80 



Staurospermum quadratum 80 



Steindachneria 119, 137 



amblyurus 119, 137 



parahybfB 137 



Stellaria media 208 



Stemodia durautifolia 235 



Stephanomeria elata 213 



exigua 213 



tomentjsa 213 



virgata 213 



Stipa eminens 205 



setigera 20.5, 218 



viridula 205 



Sturnellamagoa negleota 46 



Slygngenes 164 



humboldti 164 



Stylocline gnapUalioides 20i, 212 



SusBda Torreyana 216, 236 



Succinea avara 15 



Swallow, barn 9, 48 



tree 10 



Sylvaniapusilla pileoUta 49 



Sympetaleia aurea 232 



Symphorlcarpus mollis 211 



Syrmatium dendroideum 208 



Tachisurus 139, 145 



agassizii 119, 145 



albican.s 141 



