336 MICROTINyE 



2. Hyperaciius altchisoni Miller. 



1897. Microtiis (H^jpcracrius) aitchisoni Miller, Proc. Biol. Soc. 

 Washington, 11, p. 141 ; Proc. Acad. Nat. Sci. Philadelphia, 

 1899, p. 289; Wroughton, "Summary," J. Bombay N.H.S., 27, 

 1920, p. 61. 



Tyj)e.—BM.., No. 96.11.2.3; adult male in alcohol (skull 

 defective), collected by Dr. J. E. T. Aitchison. 



Type locality. — Gulmerg, Kashmir. Altitude 9000 feet. 



Range. — Known only from the type locality. 



Characters. — Outwardly resembling H. fertilis, but distin- 

 guished by its larger size (hind-foot 18 mm.) and by its apparently 

 yellower colour. 



The colour is described by Miller as follows : " Colour on 

 back bistre slightly darkened with blackish and fading rapidly 

 on sides into the light yellowish wood brown of belly. Tail 

 obscurely bicoloured, dark brown above, light yellowish-brown 

 below. Feet dusky. Whiskers scant and short, the longest 

 reaching about to ears, mixed brown and silvery grey." Feet 

 as usual in the genus ; the claws long and slender, those of the 

 hand slightly longer than those of the foot ; thumb well developed, 

 with a large flattened nail. 



Skull reduced to fragments in the only known specimen, but 

 obviously considerably larger than in H. fertilis. What is left 

 of the frontals shows the characteristic linear crest of the inter- 

 orbital region. Palate and teeth as in smaller members of the 

 genus, differing only by their larger size. 



For external and cranial measurements, see tables at end of 

 volume. 



Remarks. — This form is undoubtedly very closely allied to 

 H. fertilis. When further and better material comes to hand 

 from Kashmir it is not unlikely that this animal will have to be 

 regarded merely as a subspecies. 



3. Hyperacrius wynnei Blanford. 



1863. Arvicola roylei Blyth, J.A.S. Bengal, 32, p. 89; Catal. Mus. 

 As. Soc, p. 125, 1863. Not of Gray. 



1880. Arvicola wymiei Blanford, J.A.S. Bengal, 49, pt. 2, p. 244; 

 ihid., 50, pt. 2, p. 99, 1881 [section Alticola]. 



1891. Arvicola (Alticola) wynnei Sclater, Catal. Mamm. Ind. Mus., 

 pt. 2, p. 90. 



1891. Microtvs wynnei Blanford, Fauna Brit. India, Mammalia, 

 p. 431; Miller, N. Amer. Fauna, No. 12, 1896, p. 55. 



1899. Microtus (Alticola) loynnei Miller, Proc. Acad. Nat. Sci. Phila- 

 delphia, 1899, p. 292; Wroughton, "Summary," J. Bombay 

 N.H.S., 27, 1920, p. 60. 



Co-tyfes.—V>.M., Nos. 8.3.9.18 and 92.2.27.1. 



Lectotype. — B.M., No. 8.3.9.18, selected by Thomas (J. Bom- 

 bay N.H.S., 25, 1918, p. 371); adult male, skin and skull (ex 

 alcohol), collected by A. B. Wynne. 



