224 MR.R.SWINHOE ON THE MAMMALS OF HAINAN. [Apr. 28, 
mud. The native name is Baramvonda or Baramoondi. We know 
as yet nothing about its habits, or the metamorphoses the young 
undergo; and I have been informed that the specimen from which 
the present description is taken is by no means a large one. Mr. 
Forster tells me that he has heard of specimens taken in the Dawson 
fully 6 feet in length. 
2. On the Mammals of Hainan. 
By R. Swinuog, F.Z.S. 
(Plate XVIII.) 
On the 9th of December, 1869, I had the pleasure of reading 
before the Society a paper on the Cervine Animals of Hainan. I 
now desire te give a list of the remaining Mammals that I saw or 
heard of during my visit to that island. 
1. Brack Ave. Hylobates pileatus, Gray, P. Z. 8. 1861, p. 136, 
pl. xx1.? Wooyuen of the Chinese of Hainan. 
In the Chinese Gazetteer of the Kiungshan district of Hainan I 
found among the list of Mammal products of the island a species of 
Gibbon thus described :—‘‘ Yuen. Male black, female white; like 
a Macaque but larger, with the two forearms exceedingly long. - 
Climbs to tree-tops and runs among them backwards and forwards 
with great agility. If it falls to the ground, it remains there like a 
log. Its delight is in scaling trees, as it cannot walk on the ground. 
Those desiring to rear it in confinement should keep it among trees ; 
for the exhalations of the earth affect it with diarrhcea, causing 
death ; a sure remedy for this, however, may be found in a draught 
made of the syrup of fried Foo-tsze (seeds of Abrus precatorius, 
Linn.).””’ An extract from the work Pun Yu liang che is here inserted, 
giving the various Yuens known to the author:—‘‘ There are three 
kinds of Yuens—the Golden-Silk Yuen, which is yellow, the Jade- 
faced Yuen, which is black, and the Jet-black Yuen, which has the 
face also black. The Golden-Silk and the Jade-face are both diffi- 
cult to procure.” The Gazetteer then continues :—‘ Hainan has 
also the Rock-Yuen. It is small, about the bigness of one’s fist. If 
allowed to drink water, it grows in size. This is also called Black 
Yuen, and is now likewise difficult to obtain.” 
In a later edition of the Gazetteer the following is added :— 
«From its love for climbing and its mild disposition it is called 
Yuen’’ (two meanings of the phonetic part of the character). The 
work Pe-ya remarks, ‘The Yuen does not usually walk along the 
ground ;”’ the Gazetteer therefore observes that it cannot walk ; but 
those that have lately kept it in confinement have noticed that it oc- 
casionally drops on to the ground of its own inclination, and runs 
backwards and forwards in as lively a manner as the Meshuy [ Loris 
gracilis (Shaw)]. We consequently cannot accept the statement 
in the Gazetteer. 
