CLASSIFICATION OF THE THERtODONTIA. 



57 



trigeminal " foramen " lies considerably forward and is more 

 dorsal in position. It lies at the end of a long slit and is pre- 

 sumably really only an incision and not a foramen. The length 



Text-figure 15. 



RQ Pt.Pr. 



Leptotrackelvs eiipaclujgnatlms. Type-skull. 

 Right lateral aspect. X f. 



Text- figure 16. 



For.Vl PBRH Fen.Gv. B.Oc. 



Leptotracftelvs ewpachygnatliiis. Type-skull. 



Lett lateral aspect of brain-case, the parts of the skull lateral to the post-temporal 

 fossa being removed as in text-fig. 10. 



of the slit is rendered uncertain by the fracture of. the anterior 

 end of this part of the brain- case. In the part of the brain-case 

 preserved there is no evidence of the large venous foramen 



