6 PRIMATES. 



Cynocephalus, sp. 

 Hob. India. 



15709. The greater portion of the mandible of a species of the 

 (Fig.} present genus, showing the three true molars of the right 

 side (in a much-worn condition), the broken bases of some 

 of the premolars and two incisors. This specimen is 

 described by Falconer arid Cautley in the ' Journal of the 

 Asiatic Society of Bengal/ vol. vi. p. 354 (1837), and is 

 figured in 'Falconer's Palaeontological Memoirs,' vol. i. 

 pi. xxiv. figs. 3, 4. It was originally compared with the 

 mandible of Semnopithecus entellus, and shown to be of 

 much larger size, with a relatively narrower symphysis, and 

 was considered too small to belong to the same species as 

 the large maxilla described above. 



In general form the specimen corresponds so closely 

 with the mandible of Cynocephalus that it may be safely 

 referred to that genus. The canine is unfortunately 

 wanting, but the protuberance of the jaw at the point 

 where this tooth should be, the form of pm."3, and the 

 generally elongated form of the jaw, seem to indicate that 

 the specimen probably belonged to a male. The length of 

 the three true molars is the same as in a female jaw 

 of C. babouin ; and the form of the teeth is precisely 

 the same in the two, the last molar having a very short 

 talon. The teeth are considerably smaller than those of 

 a male C. porcarius, in which the talon of m. 3 is much 

 longer. The size of the present specimen indicates that 

 it probably belongs to a second Siwalik species of Cyno- 

 cephalus, smaller than C. subhimalayanus. The occurrence 

 of this African genus in the Siwaliks of India is a well- 

 marked instance of the former unity of the faunas of these 

 two countries. Cautley Collection. Presented, 1842. 



GENUS non det. 

 Hob. India. 



17135. The premaxillse of a species of Monkey, containing the in- 

 cisors, in a much- worn condition ; from the Pliocene of the 

 Siwalik Hills, India. In size this specimen agrees nearly 

 with Semnopithecus entellus ; but the inferior border of the 

 nasal aperture is much wider than in that genus or Macacus, 

 being more like that of some of the higher Primates. The 

 specimen is apparently too small for Palaopithecus or 

 Cynocephalus. Cautley Collection. Presented, 1842. 



