38 GYLDENSTOLRE, OX A COLLECTION OF MAMMALS MADE IN EASTERN AND CENTRAL BORNEO. 



33. Tomeutes hippurus grayi Bonhote. 



Ann. & Mag. Nat. Hist., 7 ser., vol. VII, 1901, p. 171 (foot note). 



No. 31. $ Cämp 6, Eastern Borneo, 3I /i 1914 (2,000 feet). Head and body: 244 ram. Tail: 269 

 mm. Hindfoot: G3 mm. Ear: 19 mm. — No. 10'J. £ Long Pangian, Boelongean, Eastern Borneo 20 /i 1914. 

 Head and body: 217 mm. Tail: 265 mm. Hindfoot: 59 mm. Ear: 18 mm. — No. 10S. $ Long Pangian, 

 Boelongean, Eastern Borneo *% 1914. Head and body: 259 mm. Tail: 257 mm. Hindfoot: 60 mm. Ear: 

 20 mm. — No. 83. $ Kaboerau, Boelongean, Eastern Borneo 2l /:s 1914. Head and body: 246 mm. Tail: 

 107 mm. Hindfoot: 55 mm. Ear: 18 mm. 



This Squirrel belongs to the hippurus-growp and its nearest relative is T. 

 hippurus hippurellus Lyon 1 (Smiths. Misc. Co]]., vol. 50, part 1, 1907, p. 27). It 

 differs among other particulars in having the forearm grey on the outer side, while 

 in the latter form the forearm in concolor with the colour of the back and has only 

 a narrow streak of grey down the outer side. The middle dorsal area, beginning at 

 the base of the neck and extending down to the base of the tail is nearest to »burnt 

 sienna» (Ridgway pl. 2). 



Skull measurements . 



9 



No. 83 



? ef ? j o" Mt, 



No. 108 i No. 109 No. 31 i Kalulong 



Greatest length of skull 



Length from condylus to gnathion 



Basicranial length of skull 



Zygomatic width 



Greatest width of braincase 



Least interorbital width 



Least postorbital width 



Length of nasals mesially 



Breadth of combined nasals anteriorly 



Breadth of combined nasals posteriorly . . . . 



Diastema 



Length of foramina incisiva . . . .• 



Length of upper toothrow (alveoli) 



Remarks: Specimens 31 & 109 are not fully adult. 



56,1 



52,9 



49,9 



34,0 



24,3 



19.6 



19,2 



17,2 



7," 



4.0 



13,5 



2,7 



10,9 



58,7 



54,0 



51,3 



33,5 



23,2 



19,0 



17,1 



18,0 



7,3 



4,0 



14,8 



• 3,2 



10,1 



54,0 



49,6 



46,1 



31,5 



24,6 



18,3 



18,8 



15,0 



6,8 



3,2 



13,7 



3,0 



10,2 



51,3 

 47,0 

 43,8 

 30,8 

 23,6 

 18,8 

 17,5 

 14,5 



6,3 

 3.9 

 11,4 

 2,6 

 9.0 



56,1 



48,2 

 33,6 

 23,8 



18,5 



17,5 



7,3 



3,3 



13.7 



3,0 

 10,0 



34. Tomeutes lowii lowii Thomas. 



Ann. & Mag. Nat. Hist., 6 ser., vol. IX, 1892, p. 253. 



No. 92. (£ Long Pangian, Boelongean, Eastern Borneo 30 /s 1914. 



No. 129. <£ Pipoh, Boelongean, 

 Eastern Borneo Ui /5 1914. Head and body: 135 mm. Tail: 81 mm. Hindfoot: 33 mm. Ear: 13 mm. — 

 No. 133. $ Pipoh, Boelongean, Eastern Borneo 19 /ö 1914. Head and body: 135 mm. Tail: 104 mm. Hind- 

 foot: 34 mm. Ear: 14 mm. — No. 12G. $ Long Palabar, Boelongean, Eastern Borneo J % 1914. Head and 

 body: 145 mm. Tail: 59 mm. Hindfoot: 32 mm. Ear: 14 mm. 



This Squirrel of which Mr. Lumholtz collected four specimens belongs to the 

 ferwus-group. Its nearest allies are T. tenuis tenuis 2 Horsf., T. tenuis surdus 3 Miller 



1 Type locality: Batu Ampar, Laudak River, W. Borneo. 



2 Type locality: Singapore Island. 



8 Type locality: Träng, Peninsular Siarn. 



