1907. J MONKEYS OF THE GENUS CERCOPITHECUS. 705 



and nape of neck niucli the same colour as the cheeks. Shoulders 

 rather greyer than neck. Area between shoulders speckled yellow 

 and black, with faint reddish tinge. Posteriorly in the middle 

 line the reddish tinge on the hairs increases in intensity and 

 extent, and on the sacral region the black annuli have eniiirely 

 faded away. Sides of body yellower than dorsal area, with some 

 red hairs behind root of arm. Arms blackish and speckled with 

 grey externally, greyish white internally. Legs pale red ex- 

 ternally, the hairs not annulated ; greyish white faintly tinged 

 with red internally ; feet grey above. Throat, lower side of neck, 

 chest, and belly greyish white, with a faint tinge of red on the 

 belly. Hairs round callosities on back of thighs reddish. Tail 

 i-ed like saci-al region for three or four inches of its length above 

 and for a shorter distance below ; posteriorly the red gradually 

 dies away, and is replaced distally by greyish black and black. 



The above-given description is taken from the skin of a, male 

 from the Lower Zarabesi that lived in tlie Society's Gardens 

 from Dec. Uth, 1900, until Dec. 3rd, 1901. 



There is also a second male specimen, younger than the latter 

 but exactly like it in colouring. Both agree very closely with the 

 typical female example from Chindi described and figured by 

 Dr. Sclater and now preserved in the British Museum. 



Subsp. MOSSAMBicus, nov. 



Cercopithecus stairsi P. L. Sclater, P. Z. S. 1893, p. 612 ; Forbes, 

 Monkeys, ii. p. 73, 1894 (in part., S)- 



Distinguishable from the typical form by the red on the head 

 being restricted to a relatively small rufous patch above and in 

 front of the ear, scarcely any red being ti'aceable behind the ears 

 or on the occipital area. The dorsal area is very faintly tinged 

 with red and the sides are grizzled like the nape of the neck, 

 without a.ny of the rich orange- yellow noticeable in the typical 

 form. Only close to the root of the tail above and laterally are 

 the hairs quite red and devoid of annuli. Lastly, the outsides of 

 the thighs are speckled with grey and black, like the sides of the 

 body, and without any tinge of red ; the backs of the thighs, how- 

 ever, are pale reddish and unspeckled. Only about three inches 

 of the root of the tail are red, and the transition from the I'ed to 

 the greyish black is much more abrupt than in C stairsi stairsi. 



Loc, Mozambique. 



A single male specimen received from Mr. Hintz by the Society 

 on June 7th, 1893. There is no evidence, let alone proof, that 

 the differences in colour between this specimen and the typical 

 form are attributable to age oi- individual variation. The two 

 may be distinguished as follows : — 



a. Red on head extending behind ears and on to occipital area ; 

 sides of the body washed with yellowish red, outer surface 

 of posterior limbs reddish, unspeckled Subsp. s^airsr. 



a'. Red on head practically limited to a pair of patches in front 

 of the ears ; sides of body and external surface of posterior 

 limbs speckled grey Subsp. mossambiows. 



47* 



