50 PROCEEDINGS OF THE NATIONAL MUSEUM. tol. 45. 



tinguished from T. glis and its subspecies by the characters of its 

 tail. It seems curious that with all the large collections made in 

 the Rhio-Linga Archipelago by Dr. W. L. Abbott that on only four 

 islands — Batam, Bintang, Linga, Sinkep — have treeshrews been 

 collected by him: a slightly differentiated form of T. glis on Batam, 

 the very distinct Tupaia phseura or Sinkep, and on Bintang a mem- 

 ber of the splendidula group. On Linga and Sinkep occur treeshrews 

 of a very different group (Tupaia minor) and genus (Tana) . 

 Specimens examined. — Three. See table, page 51. 



TUPAIA TEPHRURA Miller. 



1903. Tupaia. tephrura Miller, Smiths. Misc. Coll., vol. 45, p. 57, Nov. 6, 1903. 

 1909. Tupaia tephura (sic), Lyon and Osgood, Bull. U. S. Nat. Mus., 62, 

 p. 250. 



Type-locality. — Tana Bala, Batu Islands, off west coast of Sumatra. 



Type-specimen. — In United States National Museum, Cat. No. 

 121752, skin and skull of adult female, Tana Bala Island, February 

 12, 1903; collected by Dr. W. L. Abbott; original number, 2276; in 

 good condition. 



GeograpJdc distribution. — Known only on Tana Bala Island, but 

 probably occurring on other islands of the Batu group. See No. 20 

 on map on page 75. 



Diagnosis. — A dark-colored member of the Tupaia glis group of 

 treeshrews, darker than T. pliseura, but with a distinctly lighter tail. 

 Mammse 2-2 = 4. 



Color. — Compared with Tupaia glis ferruginea, T. teplirura has a 

 generally darker color effect, the ferruginous tones being deeper and 

 richer, and on the posterior half of the body there is a greater ad- 

 mixture of black; the ferruginous extends further forward, distinctly 

 coloring the top and sides of head. The legs are darker in color 

 than they are in T. glis ferruginea; the feet are almost black. The 

 underparts are slightly darker than is usual in T. glis ferruginea. 

 The tail is a mixture of black or blackish and buff or buffy; above 

 at the base the black predominates, but for the posterior half the 

 two colors are about equally mixed ; on the underside the buffy color 

 in excess, and on either side of the middle line is almost unmixed 

 with blackish, and rather closely approaches the style of tail of the 

 T. splendidula group. 



SJcull and teeth. — The skull and teeth of Tiqmia teplwura are not 

 essentially different from those of T. glis ferruginea. (Plate 8, fig. 7.) 



Measurements. — Type: Head and bod}^, 193 mm.; tail, 130 hind 

 foot, 43; condylo-basal length, 48.5; zygomatic width, 25.5; width of 

 bram case, 19.5; maxillary tooth row, 19. See table, page 51. 



RemarJcs. — Tupaia tephrura is a well-marked geographic form of 

 T. glis. Curiously enough it has many external resemblances to T. 

 phxura of Sinkep on the opposite side of Sumatra, but it is dis- 

 tinctly darker and more ferruginous anteriorly, and its tail is buffy 



