CLASSIFICATION OF THE THERIODONTIA. 



49 



massive downward projections, which are its tubera. Above this 

 articulation the bone becomes narrower where it is attached to the 



pro-otic. Its lateral face here bears the groove for the Gasserian 

 ganglion, above which the bone again widens to the continuation 

 Proc. Zodl. Soc— 1921, No. IV. 4 



