KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 60. N:0 6. 



49 



extending some distance down the inner side of the hindlegs. Chin and throat paler 

 than the remainder of the under parts of the body and slightly washed with orange. 

 Upper parts tawnv oehraceous, darker along the middle region where tliere is an 

 admixture of brown. Fur between the ears dark tawny washed with maroon. 



•This form of Muntjac is well-characterized as stated above by its very short 

 antiers. In the three males which seem to be quite fullgrown, the antiers vary 

 between 21 mm. and 34 mm., thus agreeing better with the specimens recorded by 

 Lyon (Proc. U. S. Nat. Mus., vol. 40, 1911, p. 72 & pl. 1) than those mentioned 

 in the original description. In the Catalogue of the Ungulate Mammals in the British 

 Museum, vol. IV, 1915, p. 16 the basal length of the skull is given to 171—178 mm. 

 In the adult males of the present series the basal length is still less. As al ready 

 remarked by Lyon (tom. cit.) the nasals do not merely meet the premaxillare, but 

 are articulating extensively with it. The lachrymal pits are very large. 



Besides M. m. pleiharicus another form of Muntjac also inhabits Borneo. This 

 species which has been named M. m. rubidus by Lyon may, however, at once be 

 distinguished by its much larger size and by having rather stout and robust antler 

 pedicles. 



Skull measurements : 



ef 



ef 



ef 



9 imm. 



9 imm. 



No. 53 



No. 64 



No. 70 



No. 69 



No. 1 



178,2 



177,ö 



182.4 



166.0 



167,1 



107.7 



165,7 



172,7 



152.7 



156,9 



156,8 



15C,ö 



161,8 



141,1 



147,5 



153,8 



158.8 



160,2 



146,0 



146,4 



74.2 



78,7 



76,1 



71.1 



70,7 



51,4 



54,7 



53,3 



55.0 



53,0 



44,0 



46,6 



51,2 



43,8 



41,3 



72,6 



72,2 



71,0 



66,7 



66,5 



38,0 



41,1 



39,2 



34,3 



35,0 



52,4 



52,3 



54,3 



— 



— 



o:!, t 



90,2 



97.0 



84,2 



86,0 



Greatest length of skull 



Condylobasal length of skull 



Basicranial length of skull 



Oceipitonasal length 



Zygomatio width . • 



Greatest width of braincase 



Length of nasnls mesially 



Length of frontals mesially 



Least interorbital breadth 



Length of upper inolar series 



Lachrymal notch to tip of premaxillare 



48. Muntiacus muntjak rubidus Lyon. 



Proc. U. S. Nat, Mus., vol. 40, 1911, p. 73. 



No. C>8. $ Camp 6, Eastcrn Borneo l */g 1914 (2,000 feét). Head and body: 878 mm. Tail: 115 

 mm. Hindfoot: 224 mm. Ear: 83 mm. 



In the present collection there is only a single female specimen, which has to 

 be referred to this race, which apparently is found on the same localities as M. m. 

 pleiharicus Kohlbr. From that species it may be distinguished by its larger size 

 and somewhat different colouration. General colour shining rufous, darkening on the 

 middle parts of the back. Individual hairs of dorsal region dirty whitish at base, 



K. St. Vet. Akad. Handl. Band 60. X:o 6. 7 



