8 SMITHSONIAN MISCELLANEOUS COLLECTIONS [vOL. 45 



RATUFA PINIENSIS sp. nov. 



Type. — Adult male (skin and skull), No. 121,840, United States 

 National Museum. Collected on Pulo Pinie, Batu Islands, March 

 I, 1903, by Dr. W. L. Abbott. Original number, 2343. 



Characters. — Like Ratufa masce but darker throughout, particu- 

 larly on the ventral surface. Head grayish in strong contrast with 

 back. Femoral spot less well developed than in the two related 

 forms. 



Color. — In general the color is like that of the two other Batu 

 members of the group, but the vandyke-brown wash on the back is 

 heavier, particularly in lumbar region, and the underparts are 

 darkened nearly to ochraceous-rufous. The inguinal and axillary 

 regions are not as dark as the rest of the ventral surface. Crown 

 even lighter and clearer gray than in Ratufa masce, scarcely yellower 

 than cheeks. Femoral spot not as large as in the related forms, and 

 so heavily grizzled by dark yellowish brown annulations as to be 

 less conspicuous than in any of the Sumatran members of the group 

 except Ratufa nigrcscens. 



Skull and teeth. — The skull and teeth do not differ tangibly from 

 those of Ratufa balce. 



Measurements. — Measurements of type : head and body, 325 ; tail 

 imperfect; hind foot, "/t^ (69); skull, greatest length, 62; basal 

 length, 52 ; basilar length, 48.4 ; length of nasals, 1 1 ; greatest 

 breadth of both nasals together, 12; least interorbital breadth, 26; 

 zygomatic breadth, 38; mandible, 39; maxillary toothrow (alveoli), 

 12; mandibular toothrow (alveoli), 13. 



Specimens examined. — Six, all from Pulo Pinie. 



SCIURUS BILIMITATUS sp. nov. 



Type. — Adult female (skin and skull). No. 105,072, United States 

 National Museum. Collected at Tanjong Laboha, Tringanu, Malay 

 Peninsula, September 29, 1900, by C. B. Kloss. Original number 

 (Dr. W. L. Abbott), 671. 



Characters. — Similar to the Javan Sciurus nigrovittatns Horsfield, 

 but tail longer, back more distinctly grizzled, gray of underparts 

 paler, and outer lateral stripe conspicuous and sharply defined. 



Color. — Upperparts a fine grizzle of black and cream-buff, the 

 latter rather in excess, and brightening to buff on shoulders, neck, 

 and flanks. Cheeks, muzzle, chin, and throat buff, brighter and 

 more rusty than that of Ridgway. Chest, belly, and inner surface of 

 legs pale smoke-gray, the darker bases of the hairs appearing 



