MAMMALS COLLECTED IN SIAM. 363 
race does not seem to occur in 8. W. Siam where it is replaced by 
S ec. davisoni Bonh. and the following form. 
(For measurements see table posted.) 
23. Sciur-13 caniceps inexpectatus. 
Sciurus epomophorus inexpectatus, Kloss, Journ. Nat. Hist. Soe. 
Siam, IT, p. 178 (1916). 
Sciurus epomophorus davisoni, Gyldenstople, Kungl Sv. Vet. Akad. 
Handl., 57. No. 2, p..35 (1917). 
5 9 ad. Koh Lak. 
Most nearly resembling S. ¢. milleri Robinson & Woughton 
from Trang, Peninsular Siam, but paler throughout. 
Occiput, back and sides a grizzle of maize-yellow and _ black, 
blending into a grizzle of white and grey (silvery) on the face and 
limbs but the yellow brightening on the sides of the neck, Ears 
slightly tinged with yellowish, their backs grey to silvery. 
Underparts, an indistinct grizzle of white and grey with a scarcely 
perceptible darker median line. Axillae and groin dull buff-yellow, 
these areas sometimes joined by an indistinct wash of the same 
colour along the line of contact between side and belly. Tail like 
back but the grizzle coarser and tending to form bands distally, 
the last 50-70 mm. pure black sharp'y margined from the 
grizzled part. 
A specimen taken in June at the same place* only differs in 
having the axillary and inguinal regions brighter, the latter being 
ochraceous-orange, and the lower median line of the tail ochraceous- 
buff. Seasonal variation, therefore, does not affect the general 
colour of the upper parts as in true caniceps, 
It is curious to find these squirrels most resembling mlleri 
of Trang, for I havea series from Chumporn, an intermediate 
locality, which are S. c. davisoni (type locality Bankachon, South 
Tenasserim), a race of much darker colour than either. 
Type. Adult female (skin and skull) No. 2434/C.B.K. 
Collected at Koh Lak, 8S. W. Siam on 15th November 1916, 
(For measurements see table posted.) 
* Obtained by Messrs. Williamson and Smith’s collectors. 
VOL. Il, NO. 4, -1919, 
