196 



Dr. C. I. Forsyth 3Iajo)-- 



In front of the lacrymal, corresponding to the place which in 

 If. Ziberiensis and H. Sivalensis is occupied by the foremost 

 tongue of the frontal, we find here a bone (Text-fig. 2) of varying 

 dimensions, intercalated between the nasal and lacrymal, uniting 

 with the maxillai'y in front, and sometimes reaching also the malar. 

 In the skull of the figured skeleton the region under consideration 

 presents the following con'ditions (Text-fig. 3). On the left side 



Fig. 3. — Front view of skull of JlippopofamKs Sfadagascariensis, Guldb. 



a short and narrow tongue of the frontal inserts itself between the 

 lacrymal and nasal, where it meets with a similar but shorter 

 prolongation of the maxillarj^. This is a stage slightly in advance 

 of that figured by Falconer & Cautley in JI. palceindicus ^ ; in 

 the latter the lacrymal is still very narrow, and the tongue of the 

 frontal, though smaller than in H. Sivalensis, is still longer and 

 broader than in the Malagasy skull. On the right side of the 

 latter, two small supplementary bones are intercalated medially 

 from the lacrymal ; the posterior one is in contact with the frontal, 



1 Fauna Antiqua Sivalensis, pi. Ivii, fig. 1. 



