166 W. T. Blanford — Oft some Mammals from Tcnasserim. [No. 3, 



XJkgulata. 

 Tragulus napu. 



JToschus napu, Rafflct', Linn. Trans. XIII, p. 262. 



Tragtdus napu, A. Milne-Edwards, Ann, Sc. IS at. Ser. 5, II, 1864, pp. 106, 158, PL 

 II, fig. 2 ;— Blyth, J. A. S. B., XLIV, 1875, Pt. 2, Extra number, p. 44 ; P. Z. S., 

 1864, p. 483. 



T. fuscatus, Blyth, J. A. S. B., XXVII, 1858, p. 278. 



T. javanicus, Blyth, Cat. Mam. Mus. As. Soc, p. 155, nee Pallas. 



As was suggested by Blyth in his remarks on Tragulus Jcanchil, the 

 larger form of chevrotain is also found in Southern Tenasserim, Mr. Davi- 

 son having procured an adult and a young animal from Bankasun. Owing 

 to the extreme confusion which formerly prevailed as to the synonymy of 

 the Traguli, the nomenclature and distribution of the different species can- 

 not be said yet to be rightly determined in all cases, but it is clear that 

 two distinct forms are found in the Tenasserim provinces and these forms 

 appear to be the T. Jcanchil and T. napu of A. Milne-Edwards' monograph 

 of the TragulidcB in the ' Annales des Sciences Naturelles', as has already 

 been pointed out by Mr. Blyth. 



The most striking differences between the two species are, — first, size ; 

 T. napu being probably thrice the weight of T. kanchil ; — second, the much 

 stouter limbs of the former ; the length of the tarsus and hind foot in two 

 specimens before me of T. napu and T. 'kanchil respectively being 5 85 and 

 4*8, wliilst the circumference of each tarsus in the middle is 1'3 and 085 ; 

 — and, third, colouration, especially below. There is but little difference 

 above ; both are brown, becoming paler and greyer on the sides, but the 

 dark line from the nape down the back of the neck is much more distinct 

 in T. kanchil. The colouration of the throat and belly, however, is very 

 different ; in T. napu there are five white stripes on the throat, one longitu- 

 dinal in the middle, and two oblique stripes on each side, the upper lateral 

 band being much shorter than the lower. In the adult skin from Tenasse- 

 rim all these bands unite in front, but not in the young specimen, in which 

 the median stripe is separated from the others, as described by Milne- 

 Edwards. The interspaces between the white bands are dark brown, darker 

 than the sides of the neck, but this appears sometimes to be the case in T. 

 kanchil also. The abdomen in adult T. napu is mostly white, the breast 

 and the space between the thighs purer white than the rest ; in the young 

 all the middle portion of the abdomen between the broad white breast and 

 the narrower white groin is smokey brown ; in both there is a rudimentary 

 dark median band, not nearly so distinct as in T. kanchil. 



In T. kanchil there are but three white stripes on the throat, the 

 median line being sometimes entirely distinct from the two broad and long 



