142 BULLETIN 61, UNITED STATES NATIONAL MUSEUM. 



pl'iteau recrion. At the present time, therefore, elegans is not defi- 

 nitely known to occur east of this region, aUhou-h it may occur to 

 some extent along the streams on the great plams mimediately 









^♦l l|r"^ *' Jft * *"^ *- 



"^■a^'^^t^ft * * *• 

 ♦' «- * * ^•iun';'^ '^■■ 





'f;i?V ♦r *■ ♦^" * .* .^ * Jr * '^J^f 

 _!/>>»(..* ^*y Aril 



1 l(. 



Vt-l)lsTK..a'TIOV OF TH.MN0P..I9 (.H.>INO.nLS LLEGAN3, ^. INDRVTID in T..L U.< VLm 



KtUURDo. 



Thus, Coues (1S78, 275) found in 



adjoining, as will be shown later. 

 Montana that: 



The wandering gartcr-snake does not appear to be generally distributed along 

 thlnorthern boundary line. It was not met wUh during the first year of my on- 

 nection with the survey in any part of the Red River -^-^^-.'i;, ^I^^ Moun- 

 the second season except to the westward from the main ovitl.ers of the Rocky Moun 

 tains to the main chain itself. 



