76 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.45. 



Color. — Upper parts of head, neck, and anterior half of body and 

 outer side of forelegs a fine grizzle of black and tawny, the latter color 

 in excess; posterior portions of upper parts including base of tail, 

 and outer side of hind legs a fine gi'izzly mixture of ocln^aceous buff 

 and blackish, both colors in about equal proportions; upper surface 

 of tail blackish brown faintly grizzled with a buff-like color; under- 

 surface of tail similar, but the buffy color predominating in the middle 

 line; anterior half of underparts light orange ochraceous, posterior 

 portions dull buffy, inner side of legs similar to adjacent portion of 

 underparts, but colors duller; feet blackish brown with a very few 

 light specks. 



Sl'uU and teeth. — Of the same general form as in Tupaia glis 

 ferruginea, but slightly larger tlu-oughout and very similar to the 

 skull of T. discolor, with a similar inflation of the brain case and rather 

 enlarged balla?, but the skull and teeth as a whole decidedly larger 

 than in discolor. 



Measurements. — Head and body, 200 mm., or slightly more; tail, 

 190; hind foot, 50-53; condylobasal length, 48-52; zygomatic width, 

 2G-2S; width of brain case, 20-21; maxillary tooth row, 19-21. 



Forms. — Tupaia longipes is separable into two fau'ly well marked 

 forms, T. longipes longipes from northern Borneo, and a form from 

 southern Borneo described below as new, 



TUPAIA LONGIPES LONGIPES Thomas. 



1893. Tupaia ferruginea longipes Thomas, Ann. Mag. Nat. Hist., ser. C, vol. 11, 



p. 343, May, 1893. 

 1911. Tup>aia longipes, Lyon, Proc. U. S. Nat. Mus., vol. 40, p. 122, April 25, 



1911. 



Type-locality. — Northwestern Borneo. 



Type-specimen. — In British Museum, Reg. No. 7G.9.20.5, collected 

 in 1876, by II. Low.; a fairly well made skin in good condition; skull 

 with the occipital portion cut away after the manner of bird collectors. 



Geographic distribution. — Northern Borneo, specimens from Sara- 

 wak to Mount Kalulong. See No. 9 on map on page 75. 



Diagnosis. — Tail and lower back more brownish, and less gray than 

 in the southern subspecies, and less contrast in color between anterior 

 and posterior portions of body; maxillary tooth row usually over 

 20 mm. in length. 



Measurements. — Type: Hind foot, 51 mm.; zygomatic width, 27; 

 width of brain case, 20.5; maxillary tooth row, 21. For measure- 

 ments of other specimens, see table, page 77. 



Specimens examined. — Twelve, from northern Borneo. For exact 

 localities, see table, page 77. 



