94 DR. W. KOWALEVSKY ON THE OSTEOLOGY OF THE HYOPOTAMIDA). 
PLATE XL. 
Fig. 1. Head of Hyopotamus velaunus , Aym., from Puy; restored, but belonging to one 
individual : all the pieces were found together in the same block. Side view. 
Fig. 2. View from above, to show the great sagittal crista. 
Fig. 3. Lower jaw of a very young Hyopotamus from Puy; the first molar is concealed 
in the jaw. 
d\ d 2 , d 3 , the three milk-molars; p*, the first premolar which has no milk-tooth 
to precede it. 
Fig. 4. Upper view of the three milk-molars. 
