112 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.45. 



all collected on the Boraean mainland, opposite the island of Labuan, 

 by Mr. Hugh Low; skins in fair condition; skulls all considerably 

 damaged in occipital region. 



Geographic distrihution.— Throughout the island of Borneo, and the 

 island of Banguey at the northeastern extremity, and the island of 

 Laut at the southeastern extremity of Borneo. See No. 2 on map 



on page 111. 



Diagnosis.— This subspecies is distinguished from the others m hav- 

 ing a distmct russet wash over the lower back and slightly extended 

 on to base of tail and in having the tails very dark and blackish. 



Shull and teeth.— There are no characters by which the skulls and 

 teeth of Tupaia minor minor may be distinguished from those of the 

 other subspecies. (Plate 10, fig. 3.) 



Measurements.— ¥or measurements of the five cotyj^es see table, 

 page 113. Usual measurements of adults: Head and body, 125-130 

 mm. ; tail, 145-160; hind foot, 32-33 ; condylobasal length, 32-34; zygo- 

 matic width, 19-20; width of brain case, 16-17; maxillary tooth row, 

 12-12.5. For individual measurements, see table, page 113. 



RemarTcs.— Tupaia minor minor is widely distributed throughout 

 Borneo and appears fairly constant in its characters. There is some 

 variation in the distinctness of the shoulder stripe. The shoulder 

 stripe in the cotypes is rather dull and inconspicuous, but in a speci- 

 men from the Trusan River, close to the locality of the cotypes, the 

 shoulder stripes are quite white and conspicuous, nearly as much so 

 as are those in the specimens from Mount Dulit, which have very con- 

 spicuous shoulder stripes. The four mounted Sarawak skins in Genoa 

 also have very distmct whitish shoulder stripes. The smgle specimen 

 from Palo Laut has the tail darker than usual, while in the specimen 

 from Banguey the tail is hghter. 



Miiller and Sclilegel * did not distinguish between the three groups— 

 javanica, minor, gracilis— of the small long-tailed olivaceous tree 

 shrews, but grouped them all as Tupaia javanica. The skull of a 

 young individual illustrated on plate 27,^ figures 13 and 14, is appar- 

 ently an example of Tupaia minor and not of T. javanica. The other 

 figures on that plate intended for T. javanica undoubtedly represent 



that species. 



The skms recorded as Tupaia javanica from Pontianak, Borneo, by 

 Jentink ^ are probably examples of T. m. minor. 



Concermngits habits, Hose « remarks: ''This little tree shrew is fairly 

 common, both on the mountains to a height of 4,000 feet and m the 

 low country. It breeds in a nest in an old stump covered with 

 creepers, but I am not sure whether it makes the nest itself or occupies 

 the nest of a bird. I have found two of these nests, but the materiar 

 used was different." ' 



Specimens examined.— Twenty-jw o. See table, page 113. 



1 Verb. Nat. Gesch. Ned. Overz. Bez., 1839-44, p. 165, pis. 26 and 37. 

 ' Cat. Syst. Mamm. Mus. Hist. Nat., vol. 12, 1888, p. 116. 

 3 Mammals of Borneo, 1893, p. 30. 



