no. 1809. MAMMALS FROM BORNEO AND VICINITY— LYON. 73 



MUNTIACUS RUBIDUS, new species. 



1907. Muntiacus plciharicus, Lyon, Proc. U. S. Nat. Mus., vol. 33, p. 550, Decem- 

 ber 24, 1907. (One pair of antlers from the Sakaiam River.) 



Type.— -Skin and skull of adult male, Cat. No. 151863, U.S.N.M., 

 collected at Pamukang Bay, southeastern Borneo, March 20, 1908, by 

 Dr. W. L. Abbott. Original number, 5907. 



Diagnostic characters. — A medium-sized member of the genus, much 

 larger and darker in color than Muntiacus pleiharicus of Borneo, 

 smaller than M. moscliatus of Sumatra, and closely resembling M. 

 bancanus 1 of Banka, but slightly larger and with darker and longer 

 legs. 



Color. — Type: General color of upper parts of body hazel, richer 

 and darker in the median line and over the hind quarters, everywhere 

 with a fine blackish grizzle, on the shoulders the hazel paling almost to 

 ochraceous; neck a mixture of dull tawny ochraceous and blackish, 

 the two colors about equally mixed on the sides, and the blackish 

 in excess above; face dull brownish; top of head bright hazel; outer 

 surface of ears dull hazel, except blackish margins; inner surface of 

 ears whitish; covering of pedicles hazel, with a conspicuous black 

 line running down them and continued down on the face over the 

 eyes; sides of head similar to sides of neck; chin and upper portion of 

 throat whitish; underside of neck generally clay color with darker 

 grizzling; middle line of chest and upper belly brownish, something 

 like hair brown, lightening laterally to drab, which gradually blends 

 with the grizzle of tawny ochraceous and blackish of the sides of the 

 body; inguinal and axillary regions whitish, the light color extending 

 part way down the inner side of the legs; outer side of forelegs black- 

 ish brown, a narrow area on inner side tawny ochraceous, a small 

 indistinct tawny ochraceous spot above each half hoof; hind legs 

 somewhat darker than forelegs, the inner side being lighter only as far 

 as the heel, a very ill-defined tawny spot above each half hoof; tail 

 deep rich hazel above, white on the sides and below. 



Antlers. — Normal for the genus, those on the type rather smaller 

 than usual, and the left one injured. (See pi. 3, figs. 1 to 7, pi. 1, 

 figs. 1 and 3, and pi. 2, lower figure.) 



STcull and teeth. — The skull of Muntiacus rubidus is at once dis- 

 tinguished from that of M. pleiharicus by its much larger size, stouter 

 antler pedicles, and a marked concavity on its dorsal aspect at the 

 posterior end of the nasals. It is, however, very similar to the skull of 

 M. bancanus, the main distinguishing characters being larger size 

 and shorter antero-posterior diameter of the interparietal. The teeth 

 in M. rubidus have about the same size that they do in M. bancanus 



1 Lyon, Proc. U. S. Nat. Mus., vol. 31, p. 582, December 18, 1900. 



