Cyclopidius (Pitliecistes) Cope, etc. 



41' 



so that the much inflated bullae lie below a part of the glen- 

 oid articular surface, and their anterior border is in 

 advance of the glenoid surface. The small postglenoid 



/0/23^ TYPE 

 Y. P. M 



Fig. 5. — Chelonocephalus scliuclierti, subgeii. et. sp. nov. Holotype. Su- 

 perior view. Nat. size. 



/0/23, TYPE 

 Y P M. 



Fig. 6. — Chelonocephalus schucherti, subgen. et sp. nov. Holotype. One 

 half palatal view. Nat. size. 



processes are thin and plate-like, situated almost directly 

 above the posterior margin of the bullae. The bullae are 

 oval in outline, with their long diameter directed forward 

 and inward at a slight angle. This foreshortening of the 



