22 JOURNAL, NATURAL BIST. SOCIETY OF SI AM. Vol. I. 



markedly predominating, and with the longer hairs tipped with light 

 brown. It is mat-like and of great length, some of" the hairs b.^iug as 

 much as 12 inches long. There is a jet-black, dorsal crest reaching 

 to the tail. Sides of neck and face black, upper surface of head the 

 same, but with some reddish hairs intermixed. Throat reddish grt-y, 

 lower lips, chin and inside of ears whitish. 



I have hunted Serow at various places in Siam fi"om Lat. 15° 

 N. above Lopburi to Lat. 11° 48' N. below Koh Hlak in the Peninsula. 

 Except in the case of one Serow, which I shot near Kuh Hlak, the 

 colouration of all the specimens seen by me was black on the ujipei- 

 parts of the body, interspersed with white hairs on the back — these 

 becoming more numerous on the breast between the forelegs, along 

 the belly and under the edges of the tail, which is thus sometimes 

 fringed with white ; from the knees and hocks downwards ver}'^ light 

 grey, or dirty white shading into gi'ey on the front of the forelegs ; 

 the muzzle not noticeably gre}' ; no fawn or red hairs at all anywhere 

 on the body or legs. The animal shot by me near Koh Hlak was 

 coloured as above descrioed, with the exception that the legs froui 

 midwaj^ between the elbow and knee joints, and midway between the 

 stifle and hock joints downwards, were a reddish gre}^ owing to tlie 

 mixture of a preponderating number of red hairs with the white. 



From the descriptions I have given above I submit that there 

 can be no doubt whatever that at least two distinct races of Serow 

 inhabit Siam, the distinguishing marks being that one race has no 

 rufous colouration at all, while the other has a considerable amount ol 

 such colouration. I have never heard of the ruf.jus variety occurring 

 in Siam north of Latitude 12° 40' N. ; all the specimens 1 have seeri ca- 

 heard of from the north of that line have had only black and white 

 hairs in their pelts. The information at my disposal leads n;ie to think 

 that the Serow without any rufous colouration at all, being simply 

 black and gY*ij or white, with dirty white or gre}' legs, may be a 

 sub-species which has not yet been described bj- anyone as a distinct 

 race. From the description alreadj' given of tliar, it appears to be 

 most closely allied to that animal, although the known habitat oi' i/iar 

 is very far removed from Siam. 



The measurements of a fullgrown female Serow which 1 shot 

 near Na Yang, about Lat. 12° 45' N,, Long. 99° 55' E., in Petcha- 

 buri district in 1910, were, from tip of nose — not much stretched 



