RESULTS FROM THE MAMMAL SURVEY. 229 



another from Assam, examples from Aimole and Machi, Manipur, 

 also presented by Mr. Hume, and now the Shortridge-Macmillan 

 collection includes six specimens from Tamanthe, one from Homalin, 

 one from Nankakauk, Kabaw Valley, and two from Haingyan, Chin 

 Hills. One of these last-named has a grey grizzled line down the 

 centre of the belly, the other not. 



Callosciums erythrmus crotalitos, subsp. n. 



Like 0. 6. naganmi but the tip of the tail with an admixture of 

 white or yellowish hairs. 



General colour above grizzled grey, more or less suffused with 

 buffy ( " dresden-brown " of Ridgeway). Shoulders, sides and hips 

 clearer grey without the buffy suffasion. Hands and feet grizzled 

 grey darkening terminally to black ; the metapodials often with a 

 slight extension of rufous trespassing over them from below. Whole 

 of undersurface and inner side of limbs deep rich rufous. Tail for 

 its basal three-fifths grizzled or indistinctly annulated with black and 

 pale buffy, the subterminal fifth black, the tip with a variable niim- 

 ber of white and pale yellowish hairs which may amount to enough 

 to make a definite terminal light tassel, or may in a few cases be 

 altogether absent, the tail end being then black ; in the majority of 

 specimens an intermediate condition occurs. 



Dimensions of the type, measured in the flesh : — Head and body 

 245 mm. ; tail, 228; hindfoot, 52; ear, 21. Skull :— Greatest 

 lengiih, 55. 



Habitat. — Extreme Upper Chindwin. Type series from Hkamti.* 

 Alt. 500'. One specimen also from Hukong Valley, 20 miles North 

 of Hkamti. 



Tyjje- — Adult male B. M. No. 15.5.5.69. Original number 5,969. 

 Collecfced 7th August 1914 by G. 0. Shortridge and S. A. Mac- 

 millan. Presented by the Bombay Natural History Society. 

 Thirty-nine specimens. 



Callosciurus erytlirceus Mnneari, subsp. n. 



Tail white with a black tip. 



Colour of body and limbs as in the previous race, though on the 

 average the back is rather less suffused with buffy, so that the 

 general tone is near "light greyish olive" of Ridgeway. Tail 

 for its basal inch or two grizzled grey like the body, then for five 

 or six inches its hairs are creamy white, their extreme tips only 

 black ; finally the terminal tuft is deep black. 



Dimensions of the type, measured in the flesh : — Head and body, 

 230 mm.; tail, 233; hindfoot, 57; ear, 22; weight, 11| oz. 

 Skidl : — Greatest length, 56*5. 



* This is the Hkamti on the Chindwin, about 2G"5 N., 9o"55 E. There is 

 another in Kachin, about 27-30 N., 27'30 E. 



