236 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXIV. 



to the north, and T. lyycjerythrus janetta to the south of this point. 

 Once across therefore there would be no competition to restrain its 

 establishing itself on the eastern bank. 



As usual we find the Lower Chindwin form of lokroicles different 

 from the Upper, the former being T. I. mearsi, Bonh., with type 

 locality Ohinbyit, not very far from Kin, while the latter does not 

 at present appear to be separable from true T. lokroicles. But about 

 this we shall know more when the Society's Survey collections from 

 Sikkim arrive. 



Judged by the present fine series T. I. mearsi is distinguishable 

 from true lokroicles by the more buffy suffusion of its back, and by 

 the whitish hip-patch being bordered above by a more or less pro- 

 minently ochraceous area, which may pass right across the lower 

 back. It is true that the ochraceous coloration does not occur in 

 the type series (4 specimens), but these were all collected in the 

 winter, and do not show the hip-patch at all. In the specimens of 

 true lokroicles the general colour of the hips is dark grizzled greyish, 

 with which the whitish hip-patch abruptly contras. 



The collection in all contains 53 examples of T. lokroicles, and 36 

 of T. lokroicles mearsi. 



Tomeutes similis oivensi, subsp. n. 



Tomeutes similis, Gray, from Nepal and Sikkim, has not usually 

 been recognized as distinct from T. lokroicles, its characteristic 

 ochraceous hips having been ascribed in the usual casual way to 

 "variation" in the latter species. But, on such material as now 

 exists, we think that Gray was right in separating them. The hip- 

 patch of T. lokroicles, is white or whitish, that of similis ferruginous. 

 In specimens without hip-patch (presumably killed in winter) we 

 are not as yet able to point out any distingaiishing marks. 



On the East bank of the Upper Chindwin our collectors obtained 

 six specimens agreeing with T. similis in having ferruginous 

 hip-patches but differing in other characters, as follows. 



General ground colour above essentially of the same dark grizzled 

 olive grey as in true similis, but the whole back strongly suffused 

 with deep rufous, becoming stronger posteriorly, the loins practically 

 grizzled "chestnut", passing without contrast into the ferruginous 

 of the hip-patch. Head, neck and shoulders grey, Undersurface 

 buffy, a more or less distinct grizzled greyish line running down the 

 centre from the throat to the belly ; a small central patch in inguinal 

 region whitish. Inner side of forearms whitish, of legs strong buffy. 

 Hands and feet grizzled grey, with or without buffy intermixture. 

 Tail coarsely grizzled grey with but slight buffy suffusion ; the 

 terminal hairs black. 



Dimensions of the tvpe : — Head and body, 216 mm.; tail, 202; 

 hindfoot, 46; ear, 23," Skull:— Length, 51-5. 



