GEOMTID^— TnOMOHTS TALP0IDE8. 



625 



Habitat. — Supposed to occur in the Interior of North Americn, from 

 "Hudson's Boy" to the "Columbia River", and to occupy about the northern 

 half of the United States west of the Mississippi, exclusive of the Pacific 

 Coast region ; being replaced, to the west, by T. bulbivorut, and, to the south, 

 by T. umbrinus. (Undoubted specimens seen from Selkirk Settlement, British 

 America; from Minnesota westward through Dakota and Montana to the 

 Rocky Mountains; and from Idaho, Wyoming, Utah, and Nevada.) 



Tail* II.— JfeatwmMal* i/«<fkl frmk fielwtau *f Thomomtk taltoiobh. 



Hon.— Ths ant a** fonfotan (pMliMM, ill alall, takoa Ike ••■• mmm (Jim to SoplMbar, im), wm Mratally 

 «n«wr«d la tko aaok hj >7Mlt Otliir ttnkmna, tnm Ik* mm» ngloa.aot ■uMrad la tin Sook, wiry tka llnHi of lat(| 

 |g!gtfc ftwa akoat to «k— t » l uk oa, wllk » » ii t rM | i « a * lai raafo o( nilatloa la olkor fart*. Tk* UU U IskoafroBll* 

 tnwkoao— H*fP**nakoalk*iriclxk>kott*rlatkoditado«ala. TkowalfMof tkoMtfaalMaaiaagoalVaaiO taTouBOMi, 

 Tkoflrtkof tkookMrtUakNtJIaskooief tk* koUj.OJM. XallMT, 9,kMi II loali-* pain aiUUr;, • pain pM«onl,t 

 pain laiaUul. WkM taUjr dlalradod, la Ik* ft«k ilaia, Ik* wUtk acn** tk* •k**k-poaek** t* tk* (natoot dUawtor of Ik* 

 kodj. Moa.L«M«ric.a*a.l,alladall,w*n nnaand la tk*a**kkrlk««*a«ilar,Ilr. Cl.lloCkMa*j,U.&A. Tk* 

 ■Miiiwiti «f UU «»«■ to kan k*«a takaa ky kha tnm It* appanat hwa 



The most northern specimen I have seen is from the Assiniboine River; 

 the species is supposed to range from Hudson's Bay to the Rocky Mountains 

 in British America (northern limit unknown). In the United States, I have 

 specimens from Minnesota, Dakota, Montana, Idaho, Nebraska, Wyoming, 

 Nevada, and Utah. The southern limit is inferred to be somewhere along 

 the middle of the United States. Its range may not inosculate with that of 

 T. umbrinus ; at any rate, I have seen no intermediate specimens from any- 

 where in the Interior, the approach io umbrinui seeming to be made in the 

 Pacific province, through bulbivorut. True taipoidei exists fuirly westward 

 of the main chains of the Rocky Mountains ; but no Thomomyi of this style 

 is known from immediate Pacific slopes. It meets and inosculates with the 

 Northern style of bulbtoonu ("douglasi") in the Columbia River region. 



This animal is elaborately described, and it« synonymy fully discussed 



in the original memoir. 

 40 M 



