Published online by Cambridge University Press: 11 June 2012
The previous history of Allenopithecus is summarized and a new description provided based on freshly dead cadavers of an adult male and female and of a male stillborn infant. Analysis of details of body proportions and external anatomy confirm the apartness of Allenopithecus from Cercopithecus and indicate a transitional status towards the macaques. Striking departures from cercopithecine features occur in the face, ear, extremities, in the presence, in the female, of a catamenial swelling and in the approximation or confluence, in the male, of the ischial callosities.