58 SMITHSONIAN MISCELLANEOUS COLLECTIONS [vOL. 45. 



20; maxillary toothrow exclusive of incisors (alveoli), 19; mandible, 

 35; mandibular toothrow exclusive of incisors (alveoli), 19.4.' 



Specimens examined. — Two, both from Tana Bala. 



Remarks. — The color of the underparts is exactly as in Tnpaia- 

 phceura, that of the upperparts is slightly darker, and the tail is very 

 different from that of the related species. When the hairs are in 

 natural position the basal half of the tail does not differ appreciably 

 in color from the back, except that the silvery tips of the hairs are 

 more noticeable. The least disarrangement, however, brings to 

 view the buff under color. The distal half is very different from the 

 back, and the whole under side is very much lighter than in Tnpaia 

 phcBura. Both specimens are in fresh, unworn pelage. In the male 

 the shoulders and back are not quite as dark as in the female, and the 

 buff of the tail is much paler. Otherwise the two specimens are 

 essentially alike. 



TUPAIA CHRYSOGASTER sp. nov. 

 (Plate X, figure i) 



Type. — Adult female (skin and skull). No. 121,572, United States 

 National Museum. Collected on North Pagi Island, Sumatra, No- 

 vember 21, 1902, by Dr. W. L. Abbott. Original number, 2078. 



Characters. — Like the Javan Tnpaia hypochrysa (Thomas), but 

 upperparts darker than in Tnpaia ferniginea, tail strongly tinged 

 with yellowish brown below, and entire ventral surface of body and. 

 inner side of legs brownish yellow. 



Color. — Type : upperparts and outer side of legs a fine, incon- 

 spicuous grizzle of black and dull ferruginous, the former in excess 

 everywhere except on neck 4nd along sides of body. Face slightly 

 tinged with gray. Feet and ears blackish, but not strongly con- 

 trasted with surrounding parts. Ventral surface of body and inner 

 side of legs clear brownish yellow, the exact shade ochraceous on 

 throat, chest, legs, and along median line, somewhat tinged with clay- 

 color elsewhere. The two color's form a rather sharp line of de- 

 markation on legs, but on sides the fur is thin and the shades less defi- 

 nite. Wrists and ankles tinged with blackish. Tail like back above, 

 but more coarsely grizzled, its under side a peculiar indefinite 

 grizzled yellowish brown, very different from the gray of Tupaia 

 ferruginea. 



Sknll and teeth. — The skull and teeth (pi. x, fig. i) are larger 

 than in Tupaia ferruginea (pi. x, fig. 2) and with age the rostrum 

 becomes decidedly more elongate than is ever the case with the 

 mainland animal. In the latter character the skull is intermediate 

 between that of Tnpaia ferruginea and that of T. tana. Its other 



