ARCTOMYS. 41 



Genus SPERMOPHILUS. 



Spermophilus, F. Cuvier Mem. Mus., Paris, vi, p. 293 (1822). 



Spermophilus bactrianus. 



Spermophilus bactrianus, Sctdly J. A. S. B., Ivi, p. 70 (1887). 



Distribution. — Afghan Turkestan. 



a. Skin, skull $ Khamiab, Oxus R., C. E. Yate, 

 12-6-86. 



[Type of Spermophilus bactrianus, Scully.] 



Genus ARCTOMYS. 



Arctomys, Schreber Saugeth., iv, p. 721 (1792). 



In the following catalogue of the Marmots of Central Asia, 

 Blanford's paper (J. A. S. B., xliv, p. 113) has been followed. All 

 the species found in Central Asia are represented in the Museum 

 collections with the exception of Arctomys robustus of Milne 

 Edwards (see below under A. himalayanus). 



J^ey of the Indian Species. 



a. Tail less than one-third of the length of the head and body ; 

 colour grayish yellow with diffused black tips to the hairs ; 

 length 22 to 24 inches. . A. himalayanus, p. 41. 



a^. Tail one-third or more than one-third of the head and body. 

 b. Smaller, length 14 to 16 inches; colour grayish yellow. 



A. hodgsoni, p. 42. 



b^. Larger, length about 25 inches; colour rufous yellow with 

 a black patch on the back and ferrugineus below. 



A. caudatus, p. 43- 



Arctomys himalayanus. 



Arctomys himalayanus, Hodgson J. A. S. B., x, p. 777, imith plate (1841) ; id. 



J. A. S. B., xi, p. 287; Blanford J. A. S. B., xliv, p. 121 ; Lydekker 



J. A. S. B., xlvi, p. 285 ; Blanford Yarkand Ma7nmals, p. 36, pis. xii, xiia, 



Lydekker J.A. S. B.,xlix,p. y ; Buchner Wiss. Result. Prze-walski Reisen 



Rodent ia, p. 25. 

 Arctomys himalayanus ^ojfzws tibetensis hodie, Hodgson J. A. S. 5., xii, 



p. 409 (1843)- 

 Arctomys bobac apud Gray, List Mamm. B. M,, p. 148 (1843); id. Cat. Hodgs. 



Coll. B. M., 1st ed., p. 23 ; Blyth J. A. S. B., xvi, p. 875 ; Horsfield Cat. 



E. I. Mus., p. 164; Blyth Cat., no. 348, p. 108; Jerdon Mamm.., p. 181 ; 



Anderson P. Z. S., 1871, p. 560. 

 Arctomys tataricus, Jameson L'Inslit., xv, p. 384 (1847)*. * 



Arctomys tibetanus, Adams P. Z, S., p. 521 (1858). 



Distribution. — The Himalayas and Thibet from Western Ladak 

 eastwards, the Kuenlun Mountains south of Yarkand, and the 



