26 



CERCOPITHECIDJ*;. 



Fig. 7. — Skull of Semnojnthecus cntellus. 



Synojisis of Indian, Ceylonese, and Burmese Sjpecies. 



A. Hair of crown radiating from a point on the 



forehead. 

 (I. Head scarcely paler or not paler than back. 



a'. Hands and feet black. No crest S. enfeUus, p. 27. 



b'. Hands and feet same colour as limbs. 



A crest »S'. priamns, p. 31. 



h. Head distinctly paler than back. 



a'. Hands and feet black, lower parts yel- 

 lowish S. hypoleucHS, p. 33. 



v. Hands and feet scarcely darker than 



limbs, lower parts greyish S. schistaceus, p. 30. 



B. Hair of crown radiating from two frontal 



points, one on each side. 

 a. Nearly black above, inside of thighs white S. femoralis, p. 42. 



C. Hair of crown directed backwards through- 



out, not radiating. 

 a. No crest ; hair of crown not longer than on 

 temples and nape. 

 a'. Body black or dusky brown above and 

 below. 

 a". Head black throughout, like body . . <S'. harbei, p. 30. 

 b". Head pale brown, cheeks same colour 



as crown S.johni, p. 33. 



c". Cheeks paler than crown, sacral 



region grey «S'. cephahptcrus, p. 34, 



(/". Cheeks paler than crown, sacral 



region black 'S'. ursinus, p. 3C. 



h'. Body yellowish white throughout .... »S'. senex, p. 35. 



