LAGOMYID^— LAGOMYS— LAG0MY8 PL. .PS. 



407 



munities, and lay up a Btorc of food for winter use. They sit erect liiie a 

 Marmot, and utter frequently n siiarp, slirili, barking cry. They arc thus in 

 their habits totally unlike the Hares. 



A single species only is found in North America, which is confined (o 

 the higher parts of the mo'jntains of the western half of the continent. Tlic 

 group is more numerously represented in Nortliern Asia, and is not now 

 found elsewhere. Three species inhabit the elevated parts of Northern India, 

 and three others occur farther northward. None occur west of the Black 

 Sea, but they range thence eastward to Kamtschatka. Their habitat hence 

 embraces only Western North America and Northern Asia. Formerly they 

 extended much farther westward and southward ; their fossil remains having 

 been found in the Pliocene strata of England, France, and on the islands of 

 Corsica and Sardinia. The species are apparently all referable to the single 

 genus Lagomtjs. The Pikas are a less specialized form than the Hares. 



-Genus LAGOMYS G. Cuvior. 



m 



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£a0Oiiiy«CcviRR, KigDe Auitn., i, 1H17, 310. 



Ogotoma Oriy, Add. St Mag. Nat. Hist., 3d Mr., xx, 1807, 320 (type, tAipM ogoloma, Pullos). 



LAGOMYS PRINCEPS Richardson. 

 Xortb American PIka. 





SYNONYMY. 



Leput (Lagomgi) prinotpt RicnARnsoN, ZnSl. Jonrn., 188H, r>30 ; Fiinnn Bor.-Amer., I, 1839, 887, pi. xix.— 

 FiscilEll, 8yu. Mum. (wid. 18:10), 403 [603] (from RichBrdaon). 



Lagom]i$ prinerpi Vi AanKS, Supp. Sobrebet's SUiiget., iv, 1844, 183, pi. ccxxxix a (Troni Ricbardson). — 

 Wateiiiiouse, Nat. Hist. Ham.,!!, 1844, 88.— Aududon& Bachwan, Nortb Aiuer. Quad., ii, 

 1651, 814, pi. Ixxxiii (mainly from RlchunlBon). — Qikbel, SUuget., IS&.'i, 455.— Baiiid, Mum. 

 N. Amer., 1857, 610 (from WaterhoiiBe).— CooFER, Proc. Cal. Acad. Nat. Sci., iii, 18&3, G!); 

 ib., 1868, 6 (Sierra Nevada, Cal.).— Okay, Aun. & Mag. Nut. HUt., 3<1 aer., xx, 1867, 280.— 

 CnpB, Proo. Acad. Nat. Bel. Pbil., 1866,8 (Lower California).— AiXEK, Dull. Ktuex Iimtitiitc, 

 vi, 1874, 57, 66.— CouES & Yarrow, Whoeler's Expl. and Surv. west of Ibo lUOlb Mcrld., v, 

 Zodl., 1875, 185. 



lagomyi tn<*<m«i< LonD, Proo ZoOI. Soo. Loud,, 1863, 96.— Gray, Ann. & Mag. Nat. Iliat., 3d wr., xx, 

 1807,380. 



DESCRIPTION. 



Above grayish-brown, varied with black and yellowisli-brown ; sides 

 yellowish-brown ; below grayish, more or less strongly tinged with pale 

 yellowish-brown. 



The color varies greatly in different specimens, irrespective of age, sc.x, 

 season, or locality. The dorsal surface is always more or less varied with 

 block, through the prevalence of numerous black-tipped huirs, especially over 



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