116 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 45. 



34.5; zygomatic width, 20.5, 19.5; width of brain case, 16.5, 16.5; 

 maxillary tooth row, 13.5, 13. See table below. 



Remarks. — Tupaia minor sincipis is a fairly distinct form; it is 

 suJOGiciently distinguished by its slightly larger size and more russet 

 color of the lower back. It is rather closely approached by the 

 small tree shrews of the neighboring island of Lin^a, which specimens 

 are rather intermediate between T. m. sincipis and T. m. malaccana, 

 but in general more like the latter form. The Sinkep specimens 

 have previously been identified as T. malaccana.^ 



Specimens examined. — Six from Sinkep Island. 



Measurements of Tupaia minor sincipis. 



' Type. 2 pm.* just appearing. ^ gii di ", dc^ still in place. 

 * dpm 3, dpm < still in place, ^m^lnst appearing. 



TUPAIA GRACILIS Thomas. 

 (Synonymy, type locality, etc., under the subspecies.) 



Geographic distribution. — Borneo, and fhc islands of Karimata, Bil- 

 liton, and Banka, west of Borneo. See Nos. 5, 6, 7 on map on 

 page 111. 



Diagnosis. — One of the small long-tailed olivaceous members of the 

 genus Tupaia intermediate in size between Tupaia javanica and T. 

 Tninor; skull of the same general shape as that of T. minor, only larger, 

 but teeth resemble tho^e of T. glis ferruginea in form, that is, cen- 

 tral upper incisors and the lower canines are not unusually enlarged 

 as they are in T. javanica. Number of mammas not known. 



Color. — General color effect of upper parts of head, neck, and body 

 and outer side of legs olive often washed with russet posteriorly, pro- 

 duced by a very fine (much finer than that of Tupaia minor) , grizzle 

 of blackish and a color that varies from cream buff to russet, the 

 latter color when present more prominent posteriorly; underparts, 

 including inner side of legs whitish to buff in color, sometimes with 

 dark bases of the hairs showing through, especially on hind legs, 

 rarely with indications of grizzUng, but never so dark or grizzled as 



> Miller, Proc. U. S. Nat. Mus., vol. 31, p. 272, Sept. 11, 1906. 

 p. 490, June 1, 1909. 



Lyon, Proc. U. S. Nat. Mus., vol. 36, 



i 



