Index 



Towhee, Abert, 177, 280. 

 brown, northern, 385. 

 green-tailed, 178, 385. 

 Nevada. 177. 

 Sacramento, 385. 



Toxostoma erissale, 65, 74. 75, 7(1, 77, 

 97, 98, 100, 207. 



Tree, smoke, 505. 



Trinity County, report upon mam- 

 mals and birds found in portions 

 of, 335; map showing portions 

 traversed in zoological explora- 

 tions, 337; description of locali- 

 ties in region of, 338-350. 



Trinity region, description of mam- 

 mals of, 350-379, of birds of, 

 379-389; analvsis of vertebrate 

 fauna of, 399, '405, 406, 409, 410; 

 fauna of, allied with Sacramento 

 fauna, 4H7. 



Troglodvtes ai'dou parkmani, 70, 210, 

 387, 405. 



Trogontherium. 458. 



Tropical zone, lower Colorado River 

 valley referred to, 66. 



Turtle Mountains, California, descrip- 

 tion of, 505; amphibians and rep- 

 tiles of, 503, their habitat limi- 

 tations, 507, check-list of, 508- 

 509; canon spring environment 

 represented in, 506; map show- 

 ing animal environments opp. 

 538; picture of high plain en- 

 vironment at south end of. opp. 

 540, of rockv mesa environment, 

 opp. 542. 



Two New Aplodontias from Western 

 North America, 497. 



Tyrannus verticalis, 69, 146. 



I'ma notata, 507, 508, 510, 511, 516; 

 measurements of, 578; picture of 

 home of, opp. 54:2; pictures of, 

 opp. 544. 

 rufopunctata, 516, 517. 

 seoparia, 516, 517. 



United States Department of Agri- 

 culture, Bureau of Biological 

 Survev, acknowledgment of loan 

 of material, 416, 497. 



United States National Museum, 

 acknowledgment of loan of ma- 

 terial, 1, 416. 



Urocyon einereoargenteus ealiforni- 

 cus, 255, 404. 

 scotti, 70, 82, 255; measurements 



of, 256. 

 sequoiensis, 404. 

 townsendi, 354, 404. 



Ursus americanus, 353, 404. 



Uta graciosa, 507, 509, 511, 525. 

 mearnsi, 34, 46, 48, 49. 

 stansburiana, 35, 46, 48, 507, 509, 

 511. 

 elegans, 524. 



Verdin, 211, 282. 



Vermivora celata celata, 69, 7:;, 194. 

 lutescens, en. \\n, m:,, 386, 105; 

 picture of locality of, op 

 luciae, 65, 76, 77, !)7, lis, 191 292, 



294. 

 ruficapilla gutturalis, 69, Hi.'., 194, 

 385, -tiKi; picture of locality of, 

 opp. 396. 

 ruficapilla, 194. 

 Vertebrate Fauna of the Trinity 

 Region of Northern California, 

 An Analysis of the, 399; litera- 

 ture cited, 410. 

 Verticaria hvpervthra beldingi, 40, 



46, 48, 49. 

 Vespertilionid Bats from California, 



Three New Races of, 317. 

 Vesperugo merriami, 267. 

 Yireo belli arizonae, 65, 69, 71, 73, 76, 

 97, 98, 189, 190. 

 huttoni huttoni, 285, 405. 

 Yireo, Cassin, 189, 385. 

 Hutton, 385. 

 least, Arizona, 189. 

 warbling, western, 189, 385. 

 Vireosylva gilva swainsoni, 69, 76, 



189, 380, 405. 

 Yulpes macrotis arsipus, 65, 80, 255; 



measurements of, 255. 

 Vulture, turkey, 123. 

 Wagner and Jordan's law, 464. 

 Wagner's theory of migration and 



geographical isolation. 475. 

 Warbler, Audubon, 200, 386. 

 Calaveras, 193, 385. 

 gray, black-throated, 200, 386 

 hermit, 201, 3S6. 

 Lucy, 191, 292, 294. 

 lutescent, 195, 386. 

 orange-crowned. 194. 

 pileolated, Alaska, 205. 



golden, 205, 386. 

 Tolmie, 201. 

 Townsend, 201, 386. 

 yellow, Alaska, 200. 

 California, 200, 386. 

 Sonora. 195. 

 Waxwing, Bohemian. 187, 385. 

 Weasel, least, Sierra, 358. 



Siskivou, 358. 

 Wildcat, barred, 360. 



desert, 253. 

 Wildcat Peak, Siskiyou County, 



California, 342. 

 Wilsonia pusilla chryseola, 70, 70, 

 205, 386, 405. 

 pileolata, 70, 76, 205. 

 Wood rat. Colorado Valley, 233. 



desert, 235. 

 Woodpecker, cactus, 132. 

 California, 381. 

 Gairdner, 381. 

 Gila, 133, 286. 



[557] 



