PLATE 6. 



Skull D. 



Skull E. 



Fig. i. 



Both figures-are reduced to 

 half the natural size. 



QDONVOLD D«L 



Fig. I. Skull D. Mr. Boyd Alexander's specimen presented to the B.M. 



Fig. 2. Skull E. Major Powell Cotton's second specimen in his private collection. 



fa) The abnormal posterior molar of the right side. 



