58 MR. ©. BODEN KLOSS ON 
13. Ratufa gigantea. 
Sciurus giganteus, McClelland, P.Z.S. 1839, p. 150. 
Ratufa gigantea, Boubote, P.Z.S. 1900, p. 193 (Nan). 
1 od ad. from Me Puan, N. N. E. of Lakon Lampang, N. Siam 
1,500-2,000 ft. [No. 2664/CBK.]. Messrs. Williamson and Smith’s 
collectors. 26 Nov. 1917. 
This animal differs from Ratufa melanopepla and its allies, 
phaeopepla and leucogenys, which are more common in Siam, in having 
tufted ears, while the buff of the forelimb is confined to the inner side, 
instead of extending over the upper surface behind the wrist. Typic- 
ally it is also larger. 
The black upper parts of the present specimen are slightly 
tinged with dark brown on the occiput and thighs, and there are about 
a dozen white hairs at the tip of the tail. 
Originally from Assam, I. gigantea has already been obtained 
from North Siam* and is known fiom the North Shan states and 
Northern Burma.t Under Ratufa bicolor (P.Z.S. 1900, p. 855) Flower 
states that he thought he could distinguish through field-glasses tufted 
ears On an animal near Krabin, Bangpakong River, but it is unlikely 
that P?. gigantea extends so far south. A local form, It. g. lutrina Thos. 
- & Wr. (Journ. Bombay N. H.S8., XXIV, 1916, p. 226) occurs opposite 
Kindat on the Upper Chindwin, Burma. 
( For measurements see table postea.) 
14. Sciurus caniceps caniceps Gray. 
Sciurus caniceps, loss, Journ. N. H. 8. Siam, II, pp. 18,83 (1916). 
1d subad. from Me Wang, N. N. KE. of Lakon Lampang, North 
Siam [ No. 2677/CBK. ]. Obtained by Mr. W. J. F. Williamson’s 
collectors. 29 Oct. 1917. 
This specimen is assuming the winter pelage ; the grizzled grey 
nape, back and sides are tinged with yellow, and there are present some 
spots and patches of orange ochraceous ; the tail is suffused with yellow 
and tapers towards the end where there is a large tuft of black hair ; 
the limbs are grey, hands and feet whitish and the under parts greyish 
white with a grey median stripe. 
(for measurements see table postea.) 
* Vide Wroughton, Journ, Bombay N. H. 8., XIX, p. 890 (1910) 
t Wronghton, op. cit. XXIII, p. 462 (6915). 
JOURN. NAT, HIST. SOC, SIAM. 
