46 . MR. C. BODEN KLOSS OX 



opinion of Anflex"son [oj). cit. p. 245) with regard to ;S'. cinna- 

 7)wnieus will likewise apply, (. e., that they are only local forms 

 of S.fe7'rugineus. 



Even in the present series, collected along a 50-mile stretch of 

 coast, there are indications of geographical vai'iation ; for the 

 eight specimens from the northern stations (Lem Ngop and 

 Ivlong Menao) most nearly resemble Gray's var. 3, while, with 

 the exception of three or four individuals like them, the eighteen 

 darker southern animals come nearer var. 2. 



19. SCIURUS FERRUGINEUS FRANDSEM, Sllbsp. n. 



Type. Adult male (skin and skull), No. 1502/C.B.K. B.M. 

 No. 15.11.4.85. Collected on Koh Chang Id., S.E. Siam, 12th 

 December, 1914. 



Characters. — Like >S'. f. cinna^nomeus of the adjacent main- 

 land, but with chin, throat, sides of head, outer sides of fore and 

 hind limbs grizzled blackish or olive-brown. 



Colour. — Top of head, upper part of body, and tail intense 

 shining red-bay, becoming moi'e fulvous towards the sides and 

 on the thighs and behind the ea.rs, the hairs black-tipped except 

 on the distal half of the tail, which is clear reddish chestnut, 

 somewhat bleached to fulvous a,t the extremity. 



Muzzle, sides of head, chin, throat, shoulders, and sides of body 

 olive-brovk'n variably annulated with bulF-yellow, strongest on 

 throat and flanks ; the shoulders, outer sides of fore limbs and 

 thighs becoming black, finely annulated with bufi:'. Entire 

 under surface, except chin a.nd throat, rich tawny, this colour 

 extending to the fore feet and also to the hind feet, where it is 

 mingled with black. There is a faintly indicated grizzled line 

 down the centre of the chest and abdomen. Eai-s like the hind 

 feet, their bases posteriorly dull ochraceous bulFy. 



Skull and Teeth. — As in the mainland race. 



Measurements. — Type; Ear, 22 mm. Skull : basilar length, 

 44'4 ; brain-case breadth, 20 ; proximal breadth of nasals, 4 ; 

 distal breadth of nasals, 8. Ears of the series, 19^22 mm. For 

 other measurements see table, p. 70. 



Sjjecimeus examined. — Sixteen, 9 males and 7 females, all from 

 the type-locality. 



Remarks. — In some of these animals the extent of black on 

 the head is almost sufficient to form a black line between the 

 crown and the grizzled portion of the face, and the fore feet are 

 also partially black ; in others the under surface is somewhat 

 more orange than in the type. 



The definition of Sciurus splendens var. 4, Gray (P. Z. S. 1861, 

 p. 137), applies to some extent, as does also Anderson's descrip- 

 tion (Zool. Res. pp. 245-6) of an example considered by him to 

 be S. siamensis Gray. The locality from which these latter two 

 specimens came is unknown and, though I am unaware that 

 Koh Chang has been previously visited by any naturalist, such 

 may have lieen the case. The characters of ^S'. /, frandseni are 



