l'2(i Mt'i'i'unn — \iir Tiodfiiitfi fraiii ( 'nliforiiid. 



Both were obtained by Aureliiis Todd. The type specimen is a woolly 

 fulvous animal with a large hairy blafl<ish tail and dark Tore and hind 

 feet. The other specimen is jiale bulif'y fulvous and seems to be a par- 

 tial albino. Compared with the type of P. lonyicaiKJux, P. alhipix differs 

 strikiii<:ly. the body being coarsely grizzled brownish bister, like an 

 ordinary field mouse (Mirrotiis), instead of fulvous, the feet white in- 

 stead of dark brown, the tail slender, scantily haired, and wiiite under- 

 neath, instead of large, hairy and blackish all round. 



The skull of the type of lonriiniiidux is reduced to I'ragments but the 

 parts that remain agree essentially with corresponding parts of the .skull 

 from Meadows, Lane County. ( )regon (No. 42,()21 9). Compared with 

 the latter the .skull of (dbipcx differs markedly in greater length and 

 narrowness, less spreading zygomata, narrower and longer braincase, 

 longer rostrum and nasals, larger bulla', and longer interplerygoid fos,sa, 

 which is square anteriorly instead of rounded or angular. 



.V('((sin'nii('nts.—Ty\^i.' specimen {$ ad.): total length KiS: tail verte- 

 bne i)2\ iiind fool li). 



Callospermophilus chrysodeirus trinitatis subsji. nov. 



7>yi^> from Tri nit \ Mountains east of Hoopa Valley, Calift)rnia (alti- 

 tude o70t) feet). No. 95, 531, 9 ad. U. S. National Museum, Biological 

 Survey Collection. September 10, 1S9S. Vernon Bailev. Oriuinal Xo. 



mm. 



('//ana-frrs. -S\/A- large: gronnd color dark: nndcr side of tail dark 

 chestnnl. In fall pelage similar to rhri/x/n/iirux. but larger: uround color 

 darker: inside of tail dark chestnut (instead of golden fnhous): skull 

 aiul teeth larger: nasals longer. 



i^f^WY/y'/Av.— This spermophile. which is common in the Siskiyou. Sal- 

 mon, and Trinity Mountains of northwestern California and south- 

 western Oregon, is much larger and darker than r/,ri/.so(h'ini.s, and never, 

 so far as known, develops the golden mantle which covers the head and 

 shoulders of that species. In size it e<|uals s.itunttiis of ihc Cascade 

 Range in the State of Washington, but differs widely from that species 

 ill having the inner black stripe strongly developed (as in r/in/.soiJr/nis). 

 and the under side of the tail solid chestnut in.stead of grizzled fulvous. 



Mt'ostirriin /I f.s. —Type, specimen ( ? ad.): total length 2!)0: tail verte- 

 brtv 105: hind foot 44. Average of (i specimens from type localii v: total 

 length :is:!: tail vertebne 100: hind foot 1.'!. 



