ivitli Descriptions of Neiv Species. 



239 



Pr ornery CO clioer us microceplialiis, sp. nov. 



(Figs. 5 A, B.) 



Holotype, Cat. No. 10998, Y. P. M. Upper Oligocene (middle John Day), 

 Turtle Cove, John Day Eiver, Oregon. 



Specific characters.— ^\uA\ long and narrow; frontals 

 markedly decurved above orbits ; extremely small brain 



Fig. 5 A. 



Fig. 5 B. 



Fig. 5 — Fromerycoclioerus microcephalus, sp. nov. Holotype. Cat. No. 

 10998, Y. P. M. A, left lateral view of skull and jaw; B, left half, superior 

 view. X about 1/3. 



chamber; liigii narrow sagittal crest; frontal ridges 

 continued separate and nearly parallel to a position above 

 the condyles before tlieir junction; squamous portion of 



