Fig. 1. — Left ramus of mandible 0/ Endothiodon bathystoma. 



t = teeth. 

 // = fractured portions. 



m = muscular excaTation, crossed by suture. 

 a = articulation. 



Pig, 2. — Portion of the above, sliowing jyosition of teeth. 



^ nat. size. 



/ = fractured portion, 

 s = symphysis. 



t.-t^ = teeth in 



rows. 



Q. J. G. S. No. 191. 



2l 



