PLATE XXI. 



rig. 

 1. 



Prozeuglodon a^ro^,» gen. et sp. nov. ; skull from above, (1a) palatal view 

 of right maxilla and premaxilla with, teeth, (1 b) skull from side, 

 (! c) occipital surface, (1 d) temporal fossa and orbit seen obliquely from 

 behind, the zygomatic arch being removed, (1 e) right ramus of mandible 

 from outer side: one-third nat. size. Birket-el-Qurun beds, 12 kilometres 

 W.S.W. of Gar-el-Gehannem. [Type specimen, C. 9319.] 



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