THE MACAQUES. 



29 



Macacus sancH-Johannis, Gray, Cat. Monkeys, Brit. Mus.App., 



p. 129 (1870 ; in part) ; Scl., P. Z. S., 187 1, p. 222. 

 Macacus rhesus^ Scl., P. Z. S., 187 1, p. 222. 

 Macacus erythrceus^^gt Schl., Mus, Pays-Bas, vii., p. 112 (1876). 



Characters. — Allied to Af. rhesus, but the head round ; the face 

 flat, and round ; supra-orbitral region bare, as in other species ; 

 cheeks dark-whiskered ; ears small and haired ; a strong ruff- 

 like beard; tail stout, thickly haired and tufted, 12 inches long. 

 Fur thick and woolly ; hair behind the mouth, and below and 

 behind the ears ringed ; hair not longer on the shoulders than 

 on the rest of the body. 



General colour olive-grey, or slaty ; the hairs finely freckled 

 with yellow ; no rufous on the lower back and hind quarters ; 

 legs dark, and a distinct black line along the top of the tail. 



The characters of the head, face, whiskers, beard, and the 

 thick tail, and the absence of the rufous colour distinguish 

 it from M. rhesus. M. assamensis is redder than M. rhesus or 

 M. cyclopis^ and has a long head, projecting face, and a short 

 tail. 



Female. — Smaller and rather lighter coloured than the male. 

 At the love-period the naked posterior parts with the thighs 

 and tail become excessively swollen, and florid. 



Distribution. — The island of Formosa, where it is the only 

 known species of Monkey. 



HaMts. — The late Consul Swinhoe was the discoverer of this 

 interesting animal. Pie has given an account of its habits in 

 the "Proceedings of the Zoological Society, " from which we 

 quote the following : " The Formosan Rock-Macaque affects 

 rocks and declivities that overhang the sea, and in the solitary 



