54 MR. C. BODEN KLOSS ON 
All these specimens seem to me to belong to the same race, and 
I would call them 7’. g. belangeri: the animal from Me Nga is perhaps 
baginning to show some approach towards 7. laotum Thomas (Ann. & 
Mag. Nat. Hist. (8) XIII, p. 224, 1914) from Nan, as there isa very 
slight darkening of the rump. Some of them, however, probably 
represent 7’. siamensis Gyldenstolpe (op. cit. supra, p. 20) from Koh 
Lak and T. g. tenaster Thomas (Journ. Bombay N. H. S., XXV, p. 201 
(1917) from Tagoot to Tenasserim town. 
( For measurements see table postew ). 
8. Tupaia glis clarissa. 
Tupaia clarissa, Thomas, Journ. Bombay N. H. S., XXV, p. 200 
(1917) [Victoria Point, S. Tenasserim]. 
Lupaia belangeri, Wroughton (partim) Journ. Bombay N. H. S., 
XXIII, p. 707 (1915) [Victoria Point and Bankachon]. 
1d subad., 1d ad. from Chumporn river mouth, S. W. Siam. 
[ Nos. 2552,3/CBK. ]. Obtained by Messrs. Williamson and Smith’s 
collectors. July 1917. 
The material is unsatisfactory but the long muzzle of the adult 
points to its being an example of clarissa. 
The younger animal has the rump blackish and throughout the 
grizzling is rather fine. The adult isin very worn pelage, the saddle 
is black and there is a black patch on the rump: the fur (probably old) 
of the head and shoulders is ferruginous, much deeper in colour than 
the silky hair of the rump where the fur is very thin. 
This Tree-shrew seems to me to link up those of the Malay 
Peninsula and some of the islands with those of Indo-China. The 
animals of the former region (ferruginea. group) have backs markedly 
more rufous, longer snouts and, in females, two pairs of mammes only. 
Northern animals (belangeri group) have little or no rufous suffusion 
above, shorter snouts and three pairs of mamme. 
The description of clarissa indicates that it is intermediate in 
colour between belangeri of Pegu and Tenasserim, and wilkinsoni of 
Trang, Peninsular Siam, being brighter and clearer than the first but 
less richly coloured than the latter; the muzzle, from tip to orbit, is as 
long as in wilkinsont but the mamme are as in belangeri, i.e., 3 pairs; 
or when only four or five mammae are present, as happens, their 
spacing and position are as in the latter. 
JOURN, NAT. HIST. SOC, SIAM. 
