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PR0CEEDIN08 OF THE NATTONAL MUSEUM. 



VOL. 45, 



lighter and duller, and in greater proportion than the black element; 

 entire underparts, including inner side of legs, oclu^aceous rufous, 

 much clearer than in Tupaia hypochrysa; hands and feet blackish 

 brown, slightly and finely grizzled with an ochraceous color; shoulder- 

 stripe barely indicated, sometimes practically obsolete, ochraceous 

 rufous. 



Slcull and teeth. — The skull and teeth of Tupaia chrysogaster are 

 essentially like those of T. hypochrysa, but the rostrum is distinctly 

 slenderer, and the teeth not so large and heavy and the bullae not so 

 reduced ; in other respects the two skulls are similar. The slenderness 

 of the rostrum suggests the genus Tana. (Plate 9, fig. 9.) 



Measurements. — Type: Head and body, 205 mm,; tail, 140; liind 

 foot, 46; condylo-basal length, 51.5; zygomatic width, 27; width of 

 brain-case, 19.5; maxillary toothrow, 20. These measurements are 

 quite characteristic of the series, which show little individual varia- 

 tion. The tail is seen to be much shorter than the head and body. 

 For individual measurements, see table below. 



Specimens examined. — Thirteen; six from North Pagi, four from 

 South Pagi, one marked simply Pagi Islands, and two from Sipora 

 Island. 



Remarlcs. — Tupaia chrysogaster is a very distinct species and needs 

 no close comparison with any other member of the genus. It has few 

 affinities with the treeshrews of Sumatra, the nearest land mass, but is 

 clearly related by the size and form of its skuU and color of the under- 

 parts to Tupaia hypochrysa of Java. 



Measurements of Tupaia chrysogaster and T. hypochrysa. 



1 77(3 just level with alveolus. 



2 Type. 



» Permanent pm^ and pm* not in place. 



< Preserved in alcohol. 



6 About three-fourths grown. 



