1870. } MR. R. SWINHOE ON CHINESE MAMMALS, 615 
9. Catalogue of the Mammals of China (south of the River 
Yangtsze) and of the Island of Formosa. By Rosrrr 
Swinuog, F.Z.S. 
PRIMATES. 
1. Hyionates, sp. (Gibbon.) 
A species of black Gibbon is said by the Chinese to exist in the 
country west of Canton. It may be the same as the animal found 
in Hainan, which I have attempted to identify with the H. pi- 
deatus, Gray (see anted, p. 224). The British Museum has a young 
specimen of Presbytes maurus (Schreber), and an adult Silenus 
veter (Linn.), both presented by Mr. John Reeves, who brought 
them with him from China (see List of Mamm. Brit. Mus. 1843). 
But it is very doubtful indeed whether either of these species occurs 
within our limits; they were probably procured at Canton, whither 
merchant ships or junks had brought them. The evidence is not 
sufficient to justify our admitting them into the Chinese list of mam- 
mals, Friends who have travelled through forests in the mountains 
of the Fokien province have informed me that they have seen troops 
of monkeys in some places; but I have never had the good fortune 
to meet with any of these tree-monkeys. 
2. Macacus sancri-JouHAnnis. (St. John’s Monkey.) 
Inuus sancti-johannis, Swinh. P. Z. 8. 1866, p. 556. 
This rock-monkey is found on most of the small islands about 
Hongkong, and is like a Rhesus with a very short tail. The 
young specimen taken alive by Commander St. John, R.N., on North 
Lena Island, did not live to maturity in the Gardens of the Society ; 
and therefore it was not determined at home whether the species is 
really a valid one. Dried bodies of this animal split in two are often 
exhibited, hanging from the ceiling, in druggists’ shops, in Canton 
and Hongkong ; and its bones are used for medicinal purposes. Its 
closest ally is the Pig-tailed Monkey (Macacus nemestrinus, Is. 
Geoffr.) of Tenasserim ; but it seems to me to be a distinct race. 
3. Macacus cycuoris. (Formosan Rock-monkey.) 
Macacus cyclopis, Swinh. P. Z. 8. 1862, p. 350, pl. xli.; 1864, 
p- 380; Sclater, P. Z.S. 1864, p. 711 (woodcut). 
The specimens that were living in the Society’s Gardens have 
died, and are now mounted in the British Museum. These adults 
are strongly tinged on the upper parts with olive-green, freckled 
with darker colour. 
The Rock-monkey of Hainan appears to be the ordinary Macacus 
erythreus. (See anted, p. 226.) 
4, NycTIcEBUs TARDIGRADUS (Linn.). (Slow-paced Lemur.) 
Has been brought alive from Canton, and presented to this Society 
Proc. Zoou. Soc.—1870, No. XLII. 
