130 Merriam — Tiro New Squirrels. 



parts mainly blark instead of white, and tail mainly wJiite all over instead of 

 white on under side onl}\ 



Color. — Upperparts from nose to baseof tail dark grizzled gray, consider- 

 ably darker than in aherti ; back with a ferruginous dorsal area extending 

 from shoulders to rump, and sometimes reaching anteriorly to top of head 

 as in aberti; lower sides, upper part of fore legs, and thighs, mainly solid 

 black ; median parts below, from mouth to base of tail, black mixed with 

 gray; ears in summer blackish (in nft^Hi gray), in winter anterior fold gray, 

 tufts black ; tail white, except extreme base, which is gray, and an indis- 

 tinct streak along the middle of upper side, which is dark butfy gray, 

 ending in a subterminal blackish band ;> nose black; face (including 

 cheeks and sides of nose), fore feet, and toes finely mixed gray and black ; 

 hind feet in summer mainly gray, in winter mainly black. 



Sciurus aberti mimus subsp. nov. 



Tijpe from Hall Peak, at south end of Cimarron Mountains, northeastern 

 New Mexico. Adult female. No. 70,908, U. S. National Museum, Biological 

 Survey Collection. January 16, 189-5. C. M. Barber. Original No. CA. 



Characters. — Similar to <S'. aberti, but gray of upperjmrts decidedly paler ; 

 red dorsal area usually obsolete or nearly so ; upper side of tail paler ; ear 

 tufts ]>ale fulvous, grizzled and tipped with black (instead of mainly black) ; 

 tail apparently shorter. 



Measurements of type speclnieti. — Length, 485 ; tail vertebrae, 215 ; hind 

 foot, 70. 



