Macacus tcheliensis, Milne Edwards, Rech. Mamm., p. 227, pls. xxxii. and xxxiii. (1868-1874); A. David, Journ. North China Branch As. Soc., 1873, p. 230.
Macacus rhesus (nec Audeb.), Scl., P. Z. S., 1871, p. 222.
Macacus erythræus, Schl., Mus. Pays-Bas, vii., p. 112 (1876).
Macacus lasiotis, Anderson, Zool. Exped. Yun-nan, p. 83 (1878 pt.).
Characters.—The Macacus tcheliensis is another species with a very close affinity to M. rhesus, and to M. lasiotis. Dr. Anderson, indeed, has united the Tcheli and the Hairy-eared Macaques under one species; while Dr. Sclater is not prepared to consider either of them, or M. cyclopis in addition, to be distinct from M. rhesus.
M. tcheliensis has the tail as long only as the hind foot, and densely clothed with long hair. Fur rather long, soft, and silky, and thicker than in the normal M. rhesus. General colour brilliant reddish-fawn, especially on the hinder part of the back and on the tail; sides of the cheeks and shoulders greyish, the yellow rings of the hair being absent; under surface of the body and inner side of the limbs grey; hands and feet greyish-fawn.
The skulls of M. lasiotis and M. tcheliensis are scarcely distinguishable from each other.
Distribution.—North China. Dr. Bushell, of H.M. Legation in Pekin, who was the first to send this rare Monkey to Europe, writes, in a letter dated 17th January, 1880: "It was obtained by me from the mountains near Yung-ling or Eastern Mausoleum, of the reigning Manchu dynasty, situated about 70 li from Pekin, in latitude 40° N. It is covered with a thick fur fitted to endure the bitterly cold winter of this part of North China, where the thermometer frequently goes down to 10° below zero."
Habits.—Nothing has yet been recorded of the habits of this Macaque in a state of nature.
XIII. ST. JOHN'S MACAQUE. MACACUS SANCTI-JOHANNIS.