TABLE XI. 



ADDITIONAL RKMAINS OF ARC1I.E0THEEIUM AND OUEODON. 

 All the figures of the natural size. 



Tab. XL, Fig. 1. Inferior view of the upper jaw of an adult individual of Archaollicrium [Entdodon?) Mortoni. The left 

 side of the specimen contains tlie first and second true molars, perfect, and the fanj^s of the last molar 

 and of the preceding two premolars. The right side contains the greater part of the first true molar, 

 the entire second, and the fangs of the third and those of the last premolar. 



" Figs. 2, ?>. Orcodan gracilis. 



" Fig. 2. View of the right side of the skull of an adult individual. 



" Fig. ',). View of the base of the same spccinicn. Upon the left side are exhibited the fourth premolar and the 

 true molars, nearly entire. 



