198 



DR. B. PETRONIEVICS ON THE LOWER JAWS OF TUE 



Cynognathus they are attached closely to the dentaiy bone 

 (coinp. the riglit ramus of the lower jaw of Gomj^Jtoynailivs 

 in text-fig. 1 with the right ramus of Cynognathus in text- fig. 7). 



Text-figure 1. 



art.s 

 arl.srf.dent.?! 



dentri 



Gomphognatlms : inferior surface of skull and mandibles. X i- 



ang. ; angular. 



ang.lm. ; angular lamina. 



ang.n. ; angular notch. 



art. ; articular. 



art.srf.dent. ? ; articular surface of dentar3r. 



art.srf.qu. ; artieular surface of quadrate. 



dent. ; dentary. 



dent.n. ; dental notcli. 



pra>'t. ; prearticular. 



sang. ; supra- angular. 



spl.; splenial. 



St. ? ; stapes. 



2. In Gomphognathus the posterior end of the dentary hone 

 goes almost as far back as the articidar bones (conip, text-figs. 2 



