1903.] Allen, Mammals from Northeast Siberia, 137 



8. Eutamias asiaticus (GMELIN). 

 PALLAS GROUND SQUIRREL. 



'Sciurus striatus SCHREBER, A. Das asiatische, Saug. IV, 1785, 790. 



Sciurus striatus, a. asiaticus GMELIN, Syst. Nat. I, 1788, 150. Based 

 on Sciurus striatus Pallas, Nov. Spec. Quad. Glir. Ord. 1778, pp. 378 

 384, ex Siberia. 



Type of present description, No. 18474, $ ad., Gichiga, Northeast 

 Siberia, August 12, 1900; N. G. Buxton, Jesup North Pacific Expedi- 

 tion. 



Post-breeding Pelage. Front half of dorsal surface, from nape pos- 

 teriorily, and sides of shoulders, light gray faintly tinged with yellow- 

 ish; rest of dorsal surface, including top of head, rump and thighs, 

 yellowish brown; five black dorsal stripes, the median one extending 

 from crown to base of tail, the inner pair from sides of nape to rump, 

 the outer pair from shoulder to hip, all equally distinct and about equal 

 in width ; the four light dorsal stripes are whitish gray anteriorly and 

 yellowish rufous posteriorly, the outer pair less strongly yellowish than 

 the inner pair; supraocular stripe, from nose to posterior border of eye, 

 pale buffy white, from eye to ear rusty brown; subocular stripe, from 

 front border of eye to posterior base of ear, pale buffy white, confluent 

 with the small white postauricular patch ; below this a broad maxillary 

 streak, rusty brown mixed with black- tipped hairs ; fore and hind feet 

 pale dingy buffy gray ; whole ventral surface with a barely appreciable 

 tinge of buff; ears like the top of the head, with narrow whitish tip and 

 edging; tail with the hairs broadly tipped with white, giving a general 

 whitish gray effect, the hairs individually being pale rufous at base, 

 forming, when seen from below, a broad central area of pale yellowish 

 rufous, about one third the total width of the tail ; this area is bordered 

 with a band of black, and a broad outer edging of white. 



Measurements. Type, total length, 259 mm.; tail vertebrae, 113; 

 hind foot, 37. Four adult males and eight adult females measure as 

 follows: Males, total length, 258 (250265); tail vertebrae, 118 (112 

 129); hind foot, 38.5 (37-40). Females, total length, 261 (253-280); 

 tail vertebras, 116 (108-120); hind foot, 37.5 (35-39). 



Skull. Type, total length, 37 mm.; zygomatic breadth, 21; length 

 of nasals, 13; posterior breadth of nasals, 3.4. 



This species is represented by 12 specimens collected at 

 Gichiga, n of which were taken July 6-10, 1901, and one 

 September 27, 1900; and one from Ola, about sixty miles 

 south of Gichiga, taken September 12, 1900; also one from 

 Marcova, without date. A single specimen from Saghalin 



