186 G. B. Wieland — Upper Cretaceous Turtles. 



In both the above skulls (borrowing further from the 

 description of L. platyops, as given by Cojje), the descending 

 portion of the prefrontal is very wide, and eqnal to the width 

 of the maxillary outside the small lachrymal foramen. Inter- 



pm 



znp 



Figure 2. — Lytoloraa angusta ? Anterior portion of cranium, x f . Yale 

 specimen 913a. From the Upper Cretaceous of Hornerstown, New Jersey. 



A, superior, — B, right lateral, — C, palatal view. — pm, premaxillary ; m, 

 maxillary ; pf, prefrontal ; o, anterior border of orbit ; /, foramen (alveolare 

 superius ? ?) ; fpn, foramen palatino nasal ; j, jugal ; p, palatine ; v, vomer ; 

 inp, internal narial passage (the vomero- palatine wall being partly broken 

 away). 



