![]() The Yellow-pine Chipmunk can be found at elevations of up to ¢.3000 m in the extreme south ofits distribution. Dry forests in the transition zone, but may inhabit lower areas in the Canadian zone. The karyotype is type B for Tamias and consists of five pairs of metacentric autosomes, six pairs of submetacentric autosomes, four acrocentric autosomes, three pairs of small metacentric or acrocentric autosomes, a submetacentric X chromosome, and a small acrocentric Y chromosome. Chromosome number of the Yellow-pine Chipmunk is 2n = 38. Subspecies vallicola is similar to amoenus, but with an overall paler coloration. Outer pair oflight stripes is white with a faint reddish brown wash. Subspecies septentrionalis is a large subspecies, with the inner pair of light stripes being reddish brown anteriorly and becoming paler posteriorly. Subspecies ochraceus is larger than amoenus, with paler dark dorsal stripesĪnd a more ocherous head and dorsum. ![]() Subspecies monoensis is a paler and grayer subspecies, with whiter light stripes. Subspecies luteiventrisis similar to amoenus, with a strong suffusion of ocherous buff on ventral pelage. Subspecies ludibundus is the largest subspecies, with dark and tawny sides and yellowish ventral fur. Upperparts are a rusty brown tone and dorsal stripes are broad. Subspecies felix has a heavy suffusion of ocher on sides, cheeks, and underside of tail. Outer pair of light stripes is lighter than inner pair. Subspecies cratericus has a dull gray pelage, with smoke-gray light stripes. Subspecies celeris is a smaller and paler subspecies, very similar to monoensis. Subspecies caurinus is similar to amoenus, but darker and with reduced ear patches. Subspecies canicaudus has a general vinaceous gray dorsum with broad dorsalstripes, and tail is edged with gray. Inner pair of light stripes is smoke-gray and outer pair is whitish. Subspecies albiventris has grayish dorsal pelage and whitish or cream ventral pelage. Subspecies affinis is indistinguishable in appearance from amoenus. Head is a mixture of gray, rufous, and black, with a dark ear patch. The two inner light stripes are grizzled gray and the outer pair of light stripes is white. Nominate amoenus has well defined black dorsalstripes, sprinkled with rufous. The Yellow-pine Chipmunk is similar in appearance to several other species of Tamias and it is suggested that genital bones may be necessary to make a positive identification. Females are larger than males, and body size is generally smaller than the Lodgepole Chipmunk (T. Each lateral dark stripe is bordered by a white stripe, and the more median light stripes are grayish. Dorsum is reddish brown, dark in appearance, with five dark stripes, usually black. The Yellow-pine Chipmunk is a small species of Tamias. Howell, 1922 - Bitterroot Valley and adjacent foothills, W Montana (USA).ĭescriptive notes. T.a.septentrionalisCowan,1946-WCBritishColumbia(Canada). T.a.ochraceusA.H.Howell,1925-SiskiyouMtsregionofSOregonandNWCalifornia(USA). T.a.luteiventrisJ.A.Allen,1890-SAlberta(Canada),WMontana,andNWWyoming(USA). T.a.ludibundusHollister,1911-boundaryareabetweenBritishColumbiaandAlberta(Canada). T.a.felixRhoads,1895-WaputickMtsinMtBakerRange,SWBritishColumbia(Canada)andNWashington(USA). T.a.cratericusBlossom,1937-ButteCounty,SIdaho(USA). T.a.celerisHall&Johnson,1940-PineForestMts,HumboldtCounty,NWNevada(USA). T.a.caurinusMerriam,1898-OlympicMts,NWWashington(USA). T.a.canicaudusMerriam,1903-EWashingtonandNIdaho(USA). T.a.albiventrisBooth,1947-betweenAsotinandGarfieldcountiesinSEWashingtonandinNEOregon(USA). T.a.affinisJ.A.Allen,1890-SBritishColumbia(Canada)andNCWashington(USA). ![]() T.a.amoenusJ.A.Allen,1890-SCWashington,SthroughC&EOregonandSIdahotoNECalifornia(USA). French: Tamia améne / German: SumpfkieferBackenhornchen / Spanish: Ardilla listada de pino Amarillo
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