

INDEX. 



353 



Salamandra lunda, 



289 



Serapta palipes, 



100 



maculatOy 



286 



pusilla, 



100 



melanosticta, 



286 



rugosa, 



100 



millepundata, 



284 



Serropalpus obsoletus, 



98 



niger, 



285 



substriatus, 



98 



opaca, 



283 



Shells, fossil and recent, of the United 





ocellatus, 



288 



Slates, 



207 



pida, 



286 



Sialla arctica, 



37 



platydadylus. 



286 



Mexicana, 



37 



porphyritica, 



288 



ocddentalis, 



37 



pundata, 



283 



Sideranthus, (s. g.) 



177 



guadridigitata, 



287 



Sieversia paradoxa, 



181 



quadrimaculata, 



286 



Sigaretus Mississippiensis, 



113 



ruber, 



286 



Siliqua floridana, 



208 



rubriventris, 



286 



lucida. 



213 



scutata, 



286 



Nuttallii, 



213 



similis, 



288 



Siredon axolotl, 



292 



sinciput alba, 



289 



Mexicanus, 



29] 



subfusca, 



286 



maculatus, 



292 



subviolacea. 



283 



Sirena maculosa, 



290 



symmetlrica, 



284 



Siren intermedia. 



291 



talpoidea, 



288 



lacertina, 



291 



tereticauda, 



288 



operculata, 



286 



tigrina. 



284 



pisciformis, 



291 



variolata, 



- 285 



striata. 



291 



venenosa, 



283 



Sisymbrium reflexura, 



183 



Samolus floribundus, 



181 



Sitta Canadensis. 



33 



Sanguinolaria Nuttallii, 



214 



Carolinensis, 



33 



Saurophagus Bairdii, 



40 



pygmasa, 



33 



sulphuratus, 



39 



Solarium triliratum, 



113 



Saurothera Botta, 



215 



Solecardia, 



278 



Californiana, 



215 



eburnea, 



279 



marginata, 



215 



Solecurtafragilis, 



208 



Saxicava Californica, 



213 



Solecurtus lucidus, 



213 



carditoides, 



213 



maximus, 



213 



Scarabeeus gregarius, 



87 



JYuttallii, 



213 



juvencus, 



87 



radiatus, 



213 



Scalaria trigentanaria, 



114 



Solen splendens, 



213 



Scobinella caelata, 



120 



Spatula clypeata, 



226 



Scolecophagus ferrugineus, 



47 



Spelerpes bilineata. 



287 



Mexicanus, 



47 



cirrigera. 



287 



Scohpax semipalmata. 



223 



guttolineata, 



287 



Scraptia Americana, 



100 



longicauda, 



287 



bi-impressa, 



100 



ludfuga, 



287 



flavicollis, 



100 



Spelerpes, 



283 



lutea, 



100 



Sphoenia Californica, 



208 



