304 Mr. O. Thomas on Mammals from 



the Museum collection irom the Malay Peninsula and Borneo, 

 each of these latter havinu; distinctive characters of their 

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

 narrow interorbital region, and a much narrower palate tiuin 

 any of the other specimens in the Museum. 



Externally all are closely similar, though the type is so 

 faded that the Javan form may possess coLnir-characters 

 which will only be perceptible on fresh specimens. By the 

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

 tinguished : — 



S<'iuropte7'us geniharhis malaccanus, subsp. n. 



Size and other essential characters as in true S. genibarhis, 

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

 and the palate broadei'. 



General colour above rich chestnut, greyer on the head and 

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

 above, more rufous below. 



Dimensions of the type (measured in skin) : — 



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



(Skull: basilar length (c.) 32*5; greatest breadth 25; 

 nasals, length 10, greatest breadth 6*4, breadtli posteriorly 

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

 breadth of palate outside ?«^ 9"3 ; length of upper tooth-series 

 exclusive of^^ 7*4. 



JJab. Malacca. 



Tgpe, 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 genibarhis horneoensis, subsj). n. 



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

 interorbital region and palate broad, as in maiaccanuSf 

 markedly broader than in the Javan form. 



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

 rather paler, the posterior dorsal colour ai)proaching Hidgway's 

 " vinaceous cinnamon.''' 



Dimensions of the type (measured in skin) : — 

 \ Head and body 190 mm. ; tail IGO ; hind foot :V2. 



\Hkull : basilar length (c.) 32; greatest breadth 24-8; 

 na:^,als, length i)"4, greatest breadth 4*0, posterior breadth 

 ;)-r)\ interorbital breadth 8 ; breadth of brain-case I'J ; 

 palalilar length 17*3; breadth of palate inclusive of m' il'a; 

 icngt"l\i of u|i[>cr tooth-sciius exclusive of j(/ 7'G. 

 \ 



