Eastman — Mylostoma. 



PLATE 4. 



Lower Dentition of DinomyJosloma. 



Figs. 22, 23. External aspect of right and left mandibles of Dlnomylostotna beecheri 

 Eastman. Portage beds; Mt. Morris, New York. Original in the 

 Peabody Museum of Yale University. Natural size. 



