PRIMATES, 
Cynocephalus, sp. 
Hab. 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 and Cautley in the ‘Journal of the 
Asiatic Society of Bengal,’ vol. vi. p. 354 (1837), and is 
figured in ‘ Falconer’s Paleontological Memoirs,’ vol. i. 
pl. 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. babouwin; 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. 31s 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. 
Hab. India. . 
17135. The premaxille of a species of Monkey, containing the in- 
cisors, in amuch-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 Palewopithecus or 
Cynocephalus. Cautley Collection. Presented, 1842. 
