I Hill X 



Mammals of Colorado A' alley, cheek- 

 list of, 217; general accounts of, 

 218. 

 Mammals and Birds Found in Por- 

 tions of Trinity, Siskiyou and 

 Shasta Counties, California, Re- 

 port upon, 335; literature cited, 

 389. 

 Mammals of the Trinity region, 

 check-list of, 350; general ac- 

 counts of, 351-379. 

 Marila affinis, 67, 115. 

 Marten, pine, northwestern, 355. 

 Martes caurina, 356. 



caurina, 355, 400, 467; picture 



of habitat, opp. 396. 

 origenes, 467. 

 pennanti pacifiea, 356, 400, 467; 

 measurements of, 357. 

 pennanti, 467. 

 Martynia pi-oboseidea, 79. 

 Mayten, Siskiyou County, 339. 

 Meadowlark, 163. 



western, 383. 

 Meadow mouse, 27. 

 Melanerpes formicivorus bairdi, 381, 



404. 

 Melopelia asiatica trudeaui, 69, 123. 

 Melopiza lincolni, gracilis, 176. 



lincolni, 69, -73, 176, 3S4, 400; 



picture of habitat, opp. 396. 

 striata, 176. 

 melodia fallax, 69, 73, 74, 173. 

 fisherella, 384. 

 merrilli, 384. 

 montana, 174. 

 rufina, 384, 402. 



saltonis, 65, 69, 72, 73, 74, 91, 

 97, 174, 276. 

 Mendelian inheritance, 477. 

 Mephitis estor, 65, 70, 73, 76, !I7. 

 257, 258. 294, 469; measurements 

 of, 258. 

 mesomelas varians, 469. 

 oceidentalis, 257. 25S, 402, 468. 

 holzneri, 469. 

 major, 468. 

 notata, 468. 

 oceidentalis, 359. 

 spissigrada. 468. 

 platyrhina, 469. 

 Merganser, red-breasted, 114. 

 Mergus senator, 67, 114. 

 Men lam, .1. C, cited, 105. 

 Michael. E. L., 475, 476. 

 Microdipodops, the Mammalian 

 Genus, a Second Species of, 

 from California, 301. 

 Microdipodops californicus, 301, 302, 

 304. 

 megacephalus, 302, 304. 



oregonus, 302, 304. 

 pallidus, 302, 304. 

 polionotus. 302, 303. 



Mieropallas whitneyi, 85, 129. 

 Microtus californicus, 27. 

 californicus, 363, 402. 

 montanus montanus, 363, 401. 

 mordax mordax, 363, 400; picture 

 of locality, opp. 396. 

 Mimus polyglottos leucopterus, 76, 



82, 206. 

 Mink, Pacific, 359. 

 Mockingbird, western, 206, 280. 

 Mojave Desert, climatic features of, 



504. 

 Mole, Central California, 351. 



shrew, large, 351. 

 Moles, trapping, 26. 

 Molothrus ater artemisiae, 158. 



obscurus, 69, 71, 76, 156, 157, 

 158; measurements of, L59, 

 160. 

 Mount Eddy, Siskiyou County, 348. 

 Mountain sheep, 218. 

 Mouse, canon, Stephens, 229, 534. 

 harvest, desert. 233. 



Klamath, 360. 

 jumping. Allen, 359. 

 kangaroo, Mono, 302. 

 meadow, 27. 

 California, 363. 

 cantankerous, 363. 

 Peale, 363. 

 pocket, Colorado Desert, 245. 

 intermediate, 248. 

 long-tailed, 244. 

 spiny, 249. 

 Yuma, 243. 

 red-backed, dusky, 362. 

 white-footed, Bovle, 361. 

 desert, 229. 

 Gambel, 361. 

 Gilbert, 361. 

 Sonora, 227. 

 Miihlenbergia debilis, 87. 

 Muridae, 469. 

 Muskrat, pallid, 237. 

 Mustela arizonensis. 467. 

 longicauda, 467. 

 muricus, 358, 401, 467. 

 saturata, 358, 401, 467. 

 streatori, 467. 



vison energumenos, 349, 404, 468. 

 lacustris, 468. 

 nesolestes, 468. 

 xanthogenys munda, 468. 

 oregonensis, 468. 

 xanthogenys, 468. 

 Mustelidae, 46"7. 



Mutations, De A' lies' theory of, 473. 

 Myadestes townsendi, 388.' 400. 

 Myeteria americana, 67, 116. 

 Mviarchus cinerascens cinerascens, 

 69, 75, 82, 85, 147, 148; measure- 

 ments of, 14S. 

 Myiochanes richardsoni richardsoni, 

 09. 75, 150, 382, 404. 



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