:mesos.ujrid.e. 303 



would appear to be an error. There is no sufficient evi- 

 dence to support the view taken by Cope as to the probably 

 Carboniferous age of the beds from which these specimens 

 were obtained. Purchased, 1885. 



R. 537. Slab showing the ventral aspect of the imperfect dorsal 

 region; from San Paolo. Purchased, 1885. 



