36 GYLDENSTOLPJG, ON A COLLECTION OF MAMMALS MADE IX EASTERN AND CENTRAL BORNEO. 



body, tail and outer sides of the feet and legs glistening coal black. Lower parts 

 of the body as well as the inner sides of hands and feet chestnut, though in the 

 males there is a slight indication of a blackish area just above the genital organ. 



Skull meaaurements : 



Greatest length of skull 



Length from eondylus to gnathion . . 



Basicranial length of skull 



Zygomatic width 



Greatest width of braincase 



Least inteiorbital breadth 



Least postorbital breadth 



Longth of nasnls mesially 



Bieadth of combined nasals anteriorly . 

 Breadth of combined nasals po9teriorly 



Diastema 



Length of foramina incisiva 



Length of upper tocthrow (alveoli) . . 



er 1 



& 



? 



No. 2 



No. 55 



No. 78 



55,0 



54,2 



56,1 



50,0 



49,8 



53,2 



47,0 



46,5 



49,7 



34,7 



33,2 



34,9 



23,5 



25,0 



23,1 



22,9 



22,0 



22,3 



19,6 



19,8 



18,3 



ld,3 



17,1 



15.0 



7,9 



8,1 



8,1 



4,2 



4,7 



4,6 



12,c 



12,0 



13,1 



3,0 



3,1 



3,2 



10,2 



10,0 



11,0 



32. Callosciurus vittatus dulitensis Bonhotk. 



Ann. & Mag. Nat. Hist., 7 ser., vol. VII, 1901, p. 451. 



Pipoh, Boelongean, Eastern Borneo: No. 128. £ 1G /:, 1914. Head and body: 167 mm. Tail: 195 

 mm. Ilindfoot: 43 mm. Ear: 16 mm. 



Long Pangian, Boelongean, Eustern Borneo: No. 105. J 1 lh /é 1914. Head and body: 212 mm. 

 Tail: 209 mm. Hindfoot: 46 mm. Ear: 20 mm. — No. 102. $ 12 A 1914. Head and body: 212 mm. 

 Tail: 204 mm. Hindfoot: 42 mm. Ear: 15 mm. — No. 113. J ' 8 /i 1914. Head and body: 219 mm. Tail: 

 183 mm. Hindfoot: 43 mm. Ear: 17 mm. — No. 101. 2 n /i 1914. Head and body: 218 mm. Tail: 

 186 mm. Hindfoot: 47 mm. Ear: 13 mm. 



Long Palabar, Boelongean, Easteni Borneo: No. 125. J 1 10 /s 1914. Head and body: 214 mm. Tail: 

 196 mm. Hindfoot: 46 mm. Ear: 17 mm. — No. 122. 9 % 1914. Head and body: 216 mm. Tail: 

 205 mm. Ilindfoot: 49 mm. Ear: 17 mm. 



Kaborean, Boelongean, Easlern Borneo: No. 1. 9 lu /i 1914. Head and body: 206 mm. Tail: 192 

 mm. Hindfoot: 48 mm. Ear: 16 mm. — No. 73. J 1 3 /3 1914. Head and body: 204 mm. Tail: 192 mm. 

 Ilindfoot: 45 mm. Ear: 17 mm. 



Camp 6, Boelongean, Eastern Borneo (2,000 feet): No. (11. J 1 35 /-> 1914. Head and body: 219 mm. 

 Tail: 114 mm. Hindfoot: 48 mm. Ear: 17 mm. — No. 41. J 1 6 /g 1914. Head and body: 216* mm. Tail: 

 174 mm. Hindfoot: 47 mm. Ear: 19 mm. — No. 42. % J 1 1914. Head and body: 226 mm. Tail: 199 

 mm. Ilindfoot: 45 mm. Ear: 17 mm. — No. 43. 9 G /a 1914. Head and body: 219 mm. Tail: 189 mm. 

 Hindfoot: 44 mm. Ear: 18 mm. — No. 33. 9 V« 1914 - Head and body: 224 mm. Tail: 153 mm. Hindfoot: 

 44 mm. Ear: 17 mm. — No. 63. j ls /-> 1914. Head and body: 213 mm. Tail: 179 mm. Hindfoot: 42 

 mm. Ear: 16 mm. — No. 64. 12 / 2 1914. Head and body: 232 mm. Tail: 163 mm. Hindfoot: 49 mm. 

 Ear: 17 mm. 



Boelongean, Eastern Borneo: No. 81. 9 28 /:i 1914. Head and body: 195 mm. Tail: 189 mm. 

 Ilindfoot: 38 mm. Ear: 16 mm. 



Toembang Maroeive, Central Borneo: No. 5313. $ Sept. 1915. Hindfoot: 48 mm. (measured in skin). 

 — No. 5320. ($ Sept. 1915. Hindfoot: 47 mm. (measured in skin). — No. 5321. $ Sept. 1915. Hindfoot: 

 48 mm. (measured in skin). 



This a very variable form as to the colour of the underparts which may be 

 chestnut, cream buff or whitish. The chestnut of the underparts is mostly developed 





