84 SIMIIDiE. 



liue on these parts, darker and richer in tone than in M. rhesus, and becoming almost 

 black on the hands. Below the ear and on the sides of the face the hair is long 

 and more or less annulated, but of a greyish tint. As in M. rhesus, and the gene- 

 rality of Macaques, there is a line of black scattered hairs along the supraorbital 

 ridges and a patch over the orbital angle of the malar. The chin, throat, and chest 

 and inside of the fore-limbs are greyish, washed with pale rufous above the wrists, 

 while the abdomen and inside of the hind-legs are greyish, suffused with pale 

 orange-red, the fur being silky. The hair on the vertex is not radiated, and 

 the ear does not appear to be more thickly clad with hair than in M. assamensis. 

 The skin around the callosities is described by Dr. Gray as crimson, and the 

 face he characterises as pale flesh-coloured. The area around the callosities is 

 well clad. Dr. Gray also describes a small naked red spot at the outer angle 

 of each eye, which is occasionally feebly developed in M. rhesus, and which occurs 

 also in M. leoninuo, Blyth. 



A. M. -Edwards, in the Eech. des Mammif^res,^ states that he is disposed to 

 regard M. lasiotis and M. tcheliensis as of the same specific type, if the normal 

 dimensions of the tail are the same in both. In M. tcheliensis the tail only equals 

 nearly the length of the hind-foot, and is also distinguished from the tail of 

 M. rhesus by being clothed with thick long hair. The skull of M. tcheliensis, 

 which I have examined, so agrees with the skull of M. lasiotis that, making 

 due allowance for the difference of sex, there seems to be every probability that 

 A. M. -Edwards' supposition is correct. He describes M. tcheliensis as having 

 the hair thick and rather long, soft, and silky. The general colour is a bril- 

 liant reddish fawn, especially on the hinder parts, becoming greyish on the 

 shoulders and on the sides of the cheeks, where the yellow is lost. The hands 

 and feet are greyish fawn, the under parts are almost grey, and the tail is con- 

 colorous with the back. 



It will be observed that A. M. -Edwards makes no mention of the ears of 

 M. tcheliensis, but these organs in M. lasiotis have been described by Dr. Gray 

 as ovate, prominent, exposed, and covered with hair. These characters, however, 

 cannot now be detected in the dried skin, any more than they can be in the type of 

 M. tcheliensis. 



The skull of M. lasiotis (figs. 9 and 10) is distinguished from the skull of 

 M. rhesus by its more massive character, greater rotundity, shorter, deeper, and 

 more vertical muzzle, and greater facial breadth. The frontal area lying behind the 

 supraorbital ridges is much more expanded than in M. rhesus, and the occipital 

 region is broader. A comparison of the measurement of the skull of the male 

 M. rhesus (M. oinops) which I have given under M. assamensis with the measure- 

 ments in the following table proves that there is very little relative difference 

 between the dimensions of the two skulls, while the accompanying woodput wiU 



I i, c, pp. 227-329. 



