Index 



lark, western, 167, 383. 

 Lincoln, 176, 384. 

 sage, Nevada, 173, 282. 

 Savannah, Nevada, 167. 



western, 167. 

 song, Modoc, 384. 



Rocky Mountain, 173. 

 rusty, 384. 

 Salt'on Sink, 174. 

 vesper, western, 166. 

 white-crowned, 167. 

 Spatula clypeata, 67, 115. 

 Speciation, of beavers of western 

 North America, 413, 495; rela- 

 tion of isolation to, 462; action 

 of geographic isolation in process 

 of, 482. 

 Sphaeralcea ainhigua, 516. 

 Sphyrapicus varius daggetti, 381, 

 401. 

 varius nuclialis, 69, 75, 1 'i 2 . 

 Spilogale arizonae arizonae, 73, 259, 

 468. 

 martirensis, 468. 

 gracilis gracilis, 468. 



saxatilis, 46s. 

 phenax latifrons, 359, 468. 

 olvmpica, 468. 

 phenax, 359, 402, 468. 

 Spinus pinus pinus, 383, 4o4. 

 Spirostachys occidentalis, 79. 

 Spizella atrogularis, 86, 172. 

 breweri, 78, 80, 86, 171, 172. 

 pallida, 172. 



passerina arizonae. 9. 70, 86, 170, 

 384, Hit. 

 Squirrel, living. Trinity, 375. 

 gray, < lalifoinia, 375. 

 ground, antelope, 221. 

 Douglas, .".72. 



golden-mantled. Trinity, 374. 

 Harris, 219, 292. 

 round tailed, 224. 

 Stelgidopteryx serripennis, 68, s 0, 



186. 

 Stellula calliope, 382, 400. 

 Steneofiber, 457, 459. 

 Stephens. Frank, 52, 219. 

 Stern. X., collector of mammals, 301. 

 Sterna forsteri, 67, 114. 

 Study, A, of a Collection of Geese 

 of the Branta canadensis Group 

 from the San Joaquin Valley, 

 California, 1 ; literature cited, 20. 

 Sturnella neglecta, 77, 163, 383, 404. 

 Suaeda suffrutescens, 79. 

 Summerville, Siskiyou County, 5-14. 

 Swallow, barn, 185. 

 cliff, 183. 



northern violet-green, 185. 

 rough winged, 186. 

 tree, 185. 

 Swarth, Harry S., 1, 53. 



Swift, long tailed, 509, 511, 525. 

 Vaux, 143. 

 white-throated, 143. 

 Svlvilagus auduboni arizonae, 70, 73, 

 75, 76, 78, 101, 25ii. 

 bachmani ubericolor, 378, 403. 

 Tachycineta thalassina lepida, 185. 

 Tanager, Cooper, 182. 



western, 182, 380. 

 Taxidea taxus berlandieri, 78, 259, 

 469. 

 infusca, 469. 

 neglecta, 469. 

 Tavlor, W. 1'.. 5::, u'97, 413, 497. 

 Tea, desert, 506. 

 Teal, cinnamon, 1 15. 

 green-winged, 115. 

 Telmatodvtes palustris plesius, 72, 



100, 211. 

 Tern, Korster, 114. 

 Testudo agassizii, 507, 508, 512. 



polvphemus, 513. 

 Thamnophis elegans, 49. 

 Hammondi, 43, 46, 48. 

 Thomomys albatus, 65, 78, 101, 239. 

 angularis angularis, 313, 314. 



pascalis, 314, 315. 

 bottae bottae, 25. 313, Ml 4. 



pascalis, •"•14, 315. 

 cabezonae, 316. 

 , hrysonotus, 80, 101, 222, 239. 

 diaboli, 313. 

 infrapallidus, ."14, 315. 

 leucodon navus, 313, 340, 364, 402. 

 monticola monticola, 312, 365. 

 pinetorum, 312, 365, 401, 402, 

 4n7; picture of locality of, opp. 

 392, 396. 

 premaxillaris, ."12. 

 nigricans nigricans, 313, 315. 



puertae, 315. 

 perpallidus, 239. 

 Thrasher, crissal, 207. 280. 



sage, 206. 

 Three New Races of Vespertilioiiid 



Bats from California, 317. 

 Thrush, hermit, 7. 

 Alaska, 215. 

 dwarf, 215, 388. 

 Monterey, 388. 

 olive-backed, 388. 

 russet-backed, 215, 388. 

 varied, 388. 

 Thrvonianes bewicki drymoecus, 387, 

 ' 403. 

 bewicki eremophilus, 78, 82, 209, 

 210. 

 Titmouse, plain, 387. 

 Toad, Arroyo, 331. 



horned, desert, 509, 511, 527. 

 spotted, 508, 512. 

 Tortoise, desert, 508, 512. 513, 514. 

 Tower House, Shasta County, 339. 



| 5501 



