new Mammals from tlie Malay Peninsula. 22.5 



Skull and teeth. — Except in their slightly smaller size, 

 the skull and teeth present no differential characters from 

 Sc. e. rubecidns. 



Measurements. — Collectors' external measurements (taken 

 in the flesh) : — 



Head and bo:lv 201 (210^) mm.; tail 195 (208) ; hind 

 foot 48 (50). 



Skull: greatest length 51*8 (54'4) ; condylo-basilar length 

 43"9 (47'1) ; interorbital breadth 19 7 (20'1) ; zygomatic 

 breadth 32-1 (32-2) ; cranial breadth 23-4 (23-7) ; median 

 length of nasals 14"9 (16" 1) ; diastema 11"9 (12'2j ; upper 

 molar series, including /*//r\ 9'4 (10'3). 



Specimens examined. — Sixty-five, including thirty from 

 the type-locality. 



Remarks. — We have long suspected that specimens of this 

 type of squirrel from the mountain ranges of the southern 

 two-thirds of the Malay Peninsula were not strictly con- 

 specific with Sc. rubeculus from Trang. The receipt of a 

 series of eight from the mountains of Bandon shows that 

 the southern form is sufficiently distinct to merit separation, 

 and we have accordingly named it after Sir Arthur Young, 

 K.C.M.G., Governor of the Straits Settlements and High 

 Commissioner, Malay States, who has recently ascended 

 Gunong Tahan. Examination of the type of Sc. griseo- 

 pectus, Blyth f, with which Bonhote has associated it, shows 

 that the present animal cannot be assigned to that form. 



Sciurus concolor falla.x., subsp. n. 



Type. — Adult male (skin and skull). No, 134/13, Federated 

 Malay States Museum, collected on Koh Pennan, N.E. 

 Malay Peninsula, 30th May, 1913, by H. C. Robinson and 

 E. Seimund. Original no. 5504. 



Characters. — A race of Sciurus concolor (with which is 

 included Sc. epumophorus) most closely allied to Sc. c. nulleriX 

 from Trang, but soniewbat duller above ; head, limbs, and 

 under surtace darker and clearer grey in tone. 



(hlour. — Upper surface grizzled black and buff, except on 

 the fore limbs, head, and hind feet, where the grizzle beccmes 

 black and white, producing a grey eficctj shouldtT-patciios 

 and flanks suffused with pale ochraceous, the colour of the 



* Measurements in parentheses are tho-^e of an adult male Sciurus 

 erythrceus rnheciilus from Kao Nawng, 3o(X) ft., lisinclon, N.E. Malay 

 PeninPuJa; Federated Malay States Museum, No. 69/13. 



t Joiirn. Asiat. Soc. Bengal, xvi. p. b73 (1847). 



t Robinson & Wroughton, Journ. Fed. Malay States Mas. i v. p. 233 

 (1911). 



