the Geogrophical Races o/Citellus fulvus. 423 



on the pencil ; on the npperside, however, the dark sub- 

 terminal bands on the hairs are seen to ])ass some way up 

 each side of tlie tail ; tips of all the hairs buffy. 



Skull decidedly shorter and proportionally rather broader 

 than in fulvus. 



Dimensions of the type (measured in ilesh) : — 



Head and body 240 mm. ; tail 94 ; hind foot 46. 



Skull: greatest length 54; condylo-incisive length 51; 

 zygomatic breadth 40*5 ; nasals 21 x 8"6 ; interorbital breadth 

 10 ; palatilar length 28 ; upper tooth-row 13*7 ; molars only 

 (worn) 9. 



Hab. Bokhara and Samai-kand. Type from 50 miles 

 S.W. of Bokhara. Alt. 600'. 



Ti/pe. Old female. B.M. no. 9. 4. 3. 26. Original num- 

 ber 40. Collected 1 9th March, 1908, by Douglas Oarruthers. 

 Six specimens. 



Citellus fulvus parthianus, subsp. n. 



Size about as in C. f. oxianns. Colour above a rather 

 warmer and more cinnamon-buff, though the difference is 

 not great. Head and nape distinctly greyer than the back, 

 the difference greater than in oxianus. Under surface much 

 greyer than in oxianus^ the ends of the belly-hairs light or 

 creamy instead of cinnamon buff. Inner side of limbs more 

 buffy than the underside generally, but not nearly so strong 

 a buff as in oxianus. Tail with scarcely any of the strong 

 cinnamon-buffy hairs on its underside, so that, as a con- 

 sequence, the pale buffy bases and black subtermiual band of 

 the upper and lateral hairs are visible from below ; tips 

 of the hairs white or whitish. 



Skull about as in oxianus. 



Dimensions of the type : — 



Head and body (c.) 240 mm. ; tail 38 ; hind foot 47. 



Skull : greatest length 57 ; condylo-incisive length 53*7 ; 

 zygomatic breadth 40*3 ; nasals 20'6 X 8'7 ; interorbital 

 breadth 10*7 ; palatilar length 29"5 ; upper tooth-row 15'2 ; 

 molars only 10*1. 



Hal. N.E. Persia. Type from Meshed, alt. 3000'. One 

 specimen from Kain. 



Type. Adult male. B.M. no. 8.6. 10. 2. Collected April 

 1908, and presented by Col. P. M. Sykes. Six specimens 

 in all, presented by Col. Sykes, Col. Yate, and Major 

 Watson. 



This Persian subspecies differs from C.f. oxianus by its 



