304 Mr. 0. Thomas on Mammals from 



the Museum collection from the Malay Peninsula and Borneo, 

 each of these latter having distinctive characters of their 

 own. The true S. genibarbis has long- narrow nasals, a very 

 narrow interorbital region, and a much narrower palate than 

 any of the other specimens in the Museu n. 



Externally all are closely similar, though the type is so 

 faded that the Javan form may possess colour-characters 

 which will only be perceptible on Eresh .specimens. By the 

 skulls, however, the two following races may be dis- 

 tinguished : — 



Sciuropterus genibarbis malaccanus, subsp. n. 



Size and other essential characters as in true S. genibarbis i 

 but the nasals markedly shorter and broader, the teeth heavier, 

 and the palate broader. 



General colour above rich chestnut, greyer on the head and 

 fore-quarters. Under surface clay-culour. Tail dark brown 

 above, more rufous beh>w. 



Dimensions of the type (measured in skin) : — 



Head and body (stretched) ; tail 190 mm. ; hind foot 30. 



Skull: basilar length (e.) 32'5; greatest breadth 25; 

 nasals, length 10, greatest breadth G'4, breadth posteriorly 

 4-2; breadth of brain-case 18*7; palatilar length 17'3 ; 

 breadth of palate outside in 9"3 ; length of upper tooth-series 

 exclusive ot'p 3 7*4. 



Jlab. Malacca. 



Type. Adult female. B.M. no. 60. 5. 4. 83. Collected by 

 Dr. T. Cantor. Presented by the East India Company. 

 Two specimens. 



The broad short nasals are the most marked characteristic 

 of this form. 



Sciuropterus genibarbis borneoensis, subsp. n. 



Like true genibarbis in the shape of the nasals, but the 

 interorbital region and palate broad, as in malaccanus, 

 markedly broader than in the Javan form. 



Colour as in malaccanus, or (as, for example, in the type) 

 rather paler, the posterior dorsal colour approaching Ridgway \s 

 11 vinaceous cinnamon.''' 



Dimensions of the type (measured in skin) : — 



Head and body 190 mm. ; tail 1G0 ; hind foot 32. 



Skull : basilar length (c.) 32 ; greatest breadth 24'8 ; 

 nasals, length 9 - 4, greatest breadth 4'6, posterior breadth 

 3'5 ; interorbital breadth 8 ; breadth of brain-case 19 ; 

 palatilar length 17"3 ; breadth of palate inclusive of m 1 9*5; 

 length of upper tooth-series exclusive of p 3 7'G. 



