TWO NEW SQUIRRELS FROM TRONG, LOWER SIAM 8 1 



like back but slightly paler. Underparts and inner surface of legs 

 whitish smoke gray faintly washed with buff on throat, the pale ventral 

 area much narrower than the red in S. notatus. Tail coarsely grizzled 

 black and ochraceous, the individual hairs ochraceous at base (2 mm.), 

 then narrowly (i mm.) ringed with black, then again with ochraceous 

 (3 mm.), then with black (8 mm.), and finally tipped (5 mm.) with 

 pale buff ; pencil clear buff. On under side of tail the colors tend to 

 a definite arrangement in longitudinal bands. Whiskers black. A 

 light buff area behind each ear. 



Skull and teeth. — The skull and teeth are not distinguishable from 

 those of typical 6". tenuis. 



Measure77ients. — External measurements of type : total length 244 ; 

 head and body 130; tail vertebra 114; pencil 45 ; hind foot 37 (35). 

 Average of five specimens from the type locality : total length 247 

 (235-257); head and body 137 (127-149); tail vertebrae 108 (i03- 

 127) ; hind foot 36.2 (35.4-37) ; hind foot without claws 33.7 (33-35). 



Rejnarks. — As compared with the race occurring at Singapore this 

 squirrel is less differentiated than the Trong form of Sciurus notattis., 

 and, curiously enough, toward dullness instead of richness of color. 



