42 



Mr. F. E. Bcddard on the 



regards tlicir centra. Tlie spinous processes are quite distinct 

 and not fused at all ; but this dorsal region of the vertebral 

 column is doubtless as immobile as in Aramus by reason of 



Thorax of Aramus (j iiat. size). 



tbe fact that numerous spicules of bone lie across the 

 junctions of the vertebrse, so that the arrangement is, so 

 far, as in G. carunculota. 



Tetrapteryx puradisea is characterized by a condition of 



