582 PROCEEDINGS OF THE NATIONAL MUSEUM. 



MUNTIACUS« BANCANUS, new species. 



1891." Cerrnlas muntjac Je^ttink, Notes Leyden Museum, XIII, 1891, p. 209 



(Billiton specimens). 

 1905. Cervulus muntjac Willink, Natuurkundig Tijdscrhift Nederlandsch-Iudiu, 



XLY, p. 189. (Banka and BiUiton.) 



T^i^^.— Skin and skull of adult female, Cat. No. 124726, U.S.N.M., 

 collected at Tanjong- Bedaan, island of Banka, east of Sumatra, June 

 7, 1904, by Dr. W. L. Abbott. Original number 3296. 



Diagnostic characters. — Externally similar to Muntlacns moschatus 

 (Blainville) of Sumatra, but decidedly smaller. Skull similar to that 

 of 2funtlacus j^leiJiaricus (Koblbrugge) of Borneo, but interpterygoid 

 space narrower and lachr3"mo-maxillary suture distinctl}^ longer. 



Color. — General color of upper parts of liod}' and tail something 

 between Ridgwa^'s hazel and ferruginous, deepest along the middle 

 line, becoming duller and lighter along the sides and flanks and thighs. 

 Beginning at the ears and extending over the shoulder the ferruginous- 

 hazel color is overwashed with blackish, caused by the black subapical 

 rings of the hairs in that region. Crown of head, bright ferruginous- 

 hazel. A black line extends from near the base of ear downward 

 and inward to meet the corresponding line of the other side in the 

 middle line at about the level of the opening of the lachrymal gland. 

 Muzzle indefinitely brownish. Sides of head and neck similar to sides 

 of body. Under parts from axilhv to inguinal region similar to sides 

 of body, an indistinct brownish mid-ventral line. Chin, upper throat 

 (lower throat similar to sides of neck), axilhe, narrow band across chest, 

 inside of upper foreleg, inguinal region, inner side of thighs, and 

 under surface of tail white. Fore and hind legs washed with dull 

 brownish. A small lighter colored area just above hoofs corresponds 

 to the conspicuous white spots seen in the same location in the Indian 

 Muntjacs. External surface of ears blackish; internally, scantily 

 haired, buff 3^. 



Skull and teeth. — Very similar to those in 3Iunt!acus 2^^<^''^haricu8 

 from Borneo. If the inferior-external boundaries of the interptery- 

 goid space be prolonged backward the}^ will bo found to pass internal 

 to the paramastoid process in the Banka Muntjac, while in the Bornean 

 Muntjac they pass much external to this process. In Mimtiacus 

 lancaiias the lachrymo-maxillary suture measures about 20 mm., 

 while in M. pleiharicus it is about 15 mm. The posterior root of the 

 zygomatic process is sharply marked off from the glenoid fossa by a 

 conspicuous rounded ridge in the Muntjac from Borneo, while in the 

 one from Banka the posterior root of the zygomatic process gradually 

 merges into the rest of the process. This difference is rather hard to 



« The well-known name Cervulus Blainville, 1816, is antedated by Muntiacus Rafin- 

 esque, 1815. 



