NO. 1498. 3LUfMALS OF BAXKA AND BILLITOX— LYON. 579 



Measurements. — See pag'e 581. 



Specimens examined. — Eight males, two females, all from the island 

 of Billitou; Tanjong Batu, six; Bukit Menguru, three; Tanjong Poe- 

 tak, one. 



Bemarlis. — The series is fairly uniform in color. The underparts 

 are mainly whitish in most of the specimens; the type has the most 

 extensive sufi'usion. Many of the specimens have a narrow, dark line 

 extending in the median line of the chest, sometimes from the collar 

 to the middle of the belly, but usuall}' shorter. Two of the speci- 

 mens. Cat. Nos. 124930 and 125003, U.S.N.M., are somewhat lighter 

 and grayer than the average of the series; Cat. No. 124930, U.S.N.M., 

 is further abnormal or partl}^ albinistic in having a thick scattering of 

 gray hairs on the top of the neck and shoulders and a few scattered 

 whitish patches over the surface of the body. 



TRAGULUS LUTEICOLLIS, new species. 

 1891. Tragulus kanchil Jentink, Notes Leyden Museum, XIII, 1891, j). 209. 



Type.—K&wM male, skin and skull. Cat. No. 124733, U.8. N.M., col- 

 lected at Tanjong Bedaan, island of Banka, east of Sumatra, June 12, 

 1904, by Dr. W. L. Abbott. Original number 3311. 



DliKjnostlc chnraciers. — Very closely related to l^ragulus ka/ic/iil of 

 Sumatra, from which it differs in a generally duller color very notice- 

 able on side of head and neck, and less black on the upper parts. It 

 is slightly larger than h/nchil, as may be seen by reference to table of 

 measurements on page 581. 



Color. — Type: General color of hairs above a dull ochraceous-buff 

 or orange-butf, tipped with black; the two colors about equally promi- 

 nent except along the well-marked nape stripe and crown of head, 

 which are neaVly entirel}^ black. On the sides of the body the black 

 is less in evidence than on the back, and the ochraceous-buti' is paler. 

 Underparts generally white, a buff}' suffusion in axilla?; a suffused 

 patch, 18 cm. long, of similar color in the ventral line, al)out 1 cm. 

 wide anteriorly where it is of the same color as the collar and widen- 

 ing out posteriorly to 4 cm. where it is a dull ochraceous-l)ufl' unmixed 

 with blackish tips of the hairs. Throat pattern normal, similar in 

 color to the middle of the sides; less black in the collar, so that it is 

 nearly a clear dull ochraceous-buff'. Forelegs almost a pure ochra- 

 ceous, slightly sprinkled with black in the upper portion. A narrow 

 white stripe on inner side of leg. Hind leg generally similar to color 

 of middle of sides, but a little brighter; inner side white. Upper 

 surface of the tail like back; tip and underside white. Sides of head 

 and neck a dull orange or ochraceous-l)uff', more buffy anteriorly, 

 grizzled by the blackish tips to the hairs. Ears blackish. 



Five of the specimens of Tragulus luteicollis are considerably lighter 

 in color along the back and sides than is the t^^pe specimen and rest of 



