I ml, X 



Cyanoeitta stelleri frontalis, 382, 

 401; picture of habitat, opp. 396. 

 Cyprinus carpio, 02. 

 Dafila acuta, 67. 115. 

 Dalea spinosa, 83, 505. 

 Deer, black-tailed, Columbian, 378. 



burro, 2 lit. 

 Dendragapus obscurus fuliginosus, 

 380, 402. 



sierrae, 380, 401; picture of 

 habitat, opp. 396. 

 Dendroica aestiva aestiva, 197, 386. 

 brewsteri, 69, 196, 197, 200, 405. 

 rubiginosa, 69, 200. 

 sonorana, 65, 69, 71, 07, 195; 

 measurements of, 198, 109. 

 auduboni auduboni, 69, 76, 200, 

 386, 4oo; picture of habitat, opp. 

 396. 

 nigrescens, 69, 76, 200, 386, 400. 

 occidentalis, 69. 201, 386, 400; pic- 

 ture of habitat, opp. 396. 

 townsendi, 69. 73, 201, 386, 405. 

 De Vries' theory of mutations, 47::. 

 Diadophis amabilis, 41, 46, 48. 

 Dipodomys californicus, 367. 

 califomicus, .'166, 402. 

 pallidulus, 367. 



trinitatis, 366, 367, 402, 403, 407. 

 deserti, 79, 80, 221. 2 11, 243, 290; 

 picture of burrows of, opp. 

 540. 

 deserti, 65, 78, SO, 92, 9::, 101, 

 240. 

 merriami, 243, 282. 



merriami, 78, 79, 80, 82, ml, 128, 



241. 

 simiolus, 242. 

 Dipoides, 458, 459. 

 1 »ipper, American, 386 

 Dipsosaurus dorsalis, 507, 508, ."ill. 



515. 

 Distribution of River Otters in Cali- 

 fornia, with Description of a 

 New Subspecies, 305; literature 

 cited, 309. 

 Distribution of amphibians ami rep- 

 tiles of southeastern California, 

 503. 

 Dixon, Joseph, 52. 

 Dove, western mourning, 122, 380. 



white-winged, 12.'!. 

 Dryobates pubescens gairdneri, 381, 

 403. 

 sealaris eactophilus, 6.1. 69, 75, 82, 



132. 

 villosus orius, 381 . 400. 

 Duck, lesser scaup, 115. 



ruddy, 116. 

 Geologic niches, how filled, 479. 

 Egret, American, 119. 

 Empidonax diffieilis difficilis, ^9, 150. 

 griseus, 69, 76, 153; measurements 

 of. 152. 



liaiimioii.il. 69, 151, 382, mi; meas 



urements of. 152. 

 trailli trailli, 69, 151, 382, mi. 

 wrighti, 69, 152, 382, 400; meas 

 urements of, 152. 



Encelia farinosa, 87, 24s, 288. 



Environments of southeastern Cali 



t "i i' in. nai I ami characterized, 



506; canon bed, 506; rocky mesa, 

 506; picture of, opp. 542; wash- 

 bed, 506; low plain, ami high 

 plain. "'ii6; pictures of. opp. .", in ; 

 drifting sand, picture of. opp. 

 542; canon spring, 506; animals 

 of Turtle Mountain region, map 

 of, opp. 538. 



Eptesicus Euscus, so, 268. 

 fuscus, 352, 404. 



Erethizon, ami Castor, parallelism in, 

 126. 



Eriogonum inflatum, 79, 81 . 



Erismatura jamaicensis, 07, in;. 



Eucastor, 158, 159. 



Euhapsis, 458. 



Km es (sp.?), 49. 



gilberti, 49. 



skiltonianus. 40. 46. 4S. 

 Eu'phagus eyanocephalus, 164. 383, 



404. 

 Eutamias amoenus amoenus, 373, 

 loo; pictures of habitat of, opp. 

 392, 396. 

 hindsi, 321, 323, 329. 

 merriami pricei, 324. 

 quadrimaculatus, .'124, 373. 

 senex, 373, 400; picture of habitat, 



opp. 396. 

 sonomae, 321, 323, 3.24. 

 townsendi ochrogenys, 323, 324. 

 Eutamias sonomae, A New Chipmunk 

 from the Inner Northern Coast 

 Belt of California, 321; litera- 

 ture eited, 325. 

 Eutypomys, 457. 



Evolution, considerations of, 414, 

 460; polytypic, 415, 472; current 

 theories of, 473. 

 Evotomys obscurus, 362, 401. 

 Fagonia ealiforniea, 87. 

 Palco columbarius richardsoni, 126. 

 m'exicanus, so, 12-"i. 

 spaiveiius deserticola, 126. 

 peninsularis, 127. 

 phalaena, <V. 85, 126. 

 sparverius, 126. 380, I" I. 

 Falcon, prairie, 125. 

 I'n una of the Colorado Desert, 6.",. 97. 

 Fannal gaps, 407. 

 Faunas, nomenclature of, 408. 

 Felis aztecus browni, 252. 

 hippolestes aztecus. 253. 

 oregonensis browni, 65, 70, 76, 2."il ; 

 measurements of. 253. 

 oregonensis, 360, 404. 



[549] 



