20 JOURNAL, NATURAL HIST. SOCIETY OF SIAM. Vol. I. 
races, ranging from Sumatra to China and the Himalayas. He declines 
to recognise theny as different species and remarks, “ I have a strong 
‘suspicion that when the Serows are better known, that is to say 
‘when more material has been collected, gradations will be traced and 
“thus justify the view I now hold that all the Serows ranging from 
‘* Kashmir to Burma belong to one locally variable species. But,” he 
continues, “ [ am not sure that future discoveries will not show that 
“the Serows of the Straits Settlements should rank together with the 
* Sumatran animal, as specifically distinet. ” 
I propose, in this article, to confine myself to those races of 
Serows which have been already described from this region, that is to 
say fromm the countries adjacent to Siem, and to show afterwards how 
they differ from the ones I have met with myself. 
It may be as well to remark at this point that Mr. Pocock has 
re-introduced the generic title of Oupricornis for the Serows in the 
place of Nemorhaedus, which has been used by Blanford, Lydekker and 
other authorities for many years, and gives his reasons for so doing on 
the grounds of priority It remains to b3 s3en whether or not his 
new term will be finally accepted. 
In the following descriptions I have not hesitated to quote freely 
from all the authorities at my disposal. The last variety to be des- 
eribed, although stated to be found in countries far removed from Siam, 
has been included here as, in colouration, it approximates very closely to 
specimens that have been found in this country. 
1. Capricornis sumatrensis robinsont. Pocock. 
Prevailing colour black, with a thick grey crest-like mane on 
the neck and withers, composed of a mixture of black and white hairs. 
Areas of the leg below the knees and hocks black, turning to brown only 
on the fetlocks. 
Distribution. Selangor and (? ) Perak. 
bo 
Nemorhaedus sumatrensis swettenhami. Lydekker. 
Capricormis sumatrensis swetlenhami. Pocock. 
General colour black, the back strongly and the sides slightly 
grizzled with grey, the bases of the hairs being whitish. Along the 
lips whitish grey: the posterior portion of the upper lips, a part on 
each side of the lower jaw and one on the throat rusty red. ars 
black, grizzled with rusty at the base, and lined and edged with greyish 
