( 659 ) 



vSkuU apparently quite as usual. 



Measm-emeuts of the type, an adult iiiale, in skin : — Head and body, 350 mm. ; 

 tail, 420; hind-foot, 63. Skull, basal length, 52'4 ; basilar length, 48-2 ; greatest 

 breadth, 39; nasals, length, 19'4; greatest breadth, 11; interorbital breadth, 24'5 : 

 palate, length, 27'0; diastema, 13; length of upper molar series (crowns), 12'2. 



This handsome squirrel, the representative of ki. blcolor in Bunguran, differs 

 considerably in colour from any other known form, while at the same time the series 

 obtained by Mr. Everett shows that it is extremely constant in its own locality, and 

 we are therefore compelled to assign a special name to it, reluctant as we are to add 

 to the already encumbered synonymy of this intricate grou[i. 



One of the specimens is partially affected by albinism, the colours throughout 

 being feebler and paler, and the back coarsely mottled with cream-colour. 



26. Sciurus bicolor albiceps Desm. 



Two specimens from Sirhassen. They are both alike, and are pale amber-brown 

 above, and of a beautiful deep cream-colour below; but we do not doubt that — so 

 far as our present knowledge goes — they should be assigned to the form to which 

 the name S. albiceps has been applied, as there are very similar skins from N. I'orneo 

 in the British Museum. For the present, however, in view of the transitional 

 specimens described by W. Sclater,* it seems better to treat this race as simply a 

 subspecies of S. bicolor. Native name " Tupai-rajah," a name generally applied by 

 the Mala3's to the large squin-els, as in Sumatra, ^Malacca, etc. 



27. Sciunis prevosti Desm. 



A fine series of this beautiful hut common squirrel from Sirhassen only. 

 [Abundant in Sirhassen. I observed no sign of this species in Bunguran. — A. E.] 



28. Sciurus notatus Bodd. 



Both Bunguran and Sirhassen. 

 [Common on both islands. — A. E.] 



29. Sciui'US lowi tiray. 



Sent in spirits from Sirhassen. 



[Found in Sirhassen only. Occurs in suitable situations over the entire N.M . 

 districts of Borneo. — A. E.] 



30. Sciurus tenuis Horsf. 



A series from Bunguran. 



[Obtained only on Bunguran, where it is very common. — A. E.] 



31. Nannosciurus sp. (?). 



[A pigmy .squirrel is described by the Malays as existing on Sirhassen. — A. E.] 



» Cat. .^famm. Iiul. .Vk.v.. ii., |i. 8, 18111. 



