SOME NOTES ON SCIURUS FINLAYSONI, AND 
OTHER SQUIRRELS OF SIAM. 
—___# +44 
By C. Bopen K1ioss, F.Z. 8. 
Through the kindness of Dr. Malcolm Smith I have recently 
received from Lopburi, two fresh spirit specimens of the ‘ white” 
squirrel of Siam (Seturus finlaysoni finlaysoni, Horsfield). 
As our knowledge of this species is very slight and is based 
mainly on old and badly-prepared specimens I have taken the following 
measurements of these two examples and, in order that the difference 
in size between them and my recently described Sciwrus jinlaysonr 
portus from Koh Si Chang may be seen at a glance, have placed in a 
third column the mazimwm dimensions from the table of measurements 
accompanying my account of that small island race.! 
S. f. finlaysona S. f. portus 
Lopburi Ko Si Chang 
Male Female Maximum, both sexes. 
Head and body 210 207 _ 202 
Tail 207 218 193 
Hind foot 48 49 44.5 
Skull :— 
Greatest length Beets 53.0 AT 7 
Condylo-basilar length 43.0 4.4.0) 41.0 
Palatilar length ot” 1209 21.2 20.0 
Diastema oY ORE 2 11.4 10.7 
Upper molar row soa OO 10 4 9.5 
Interorbital breadth ... 19.9 19.6 17.0 
Zygomatic breadth ... 32.3 31.6 28 
Median nasal length ... 14.7 17.0 15 
A large series of the mainland animal would doubtless show 
much greater differences than are evident here, but even with the 
present material these are sufficiently distinct. 
1]. antea, p. V7: 
