42 
Mr. F. E. Beddard on the 
regards their centra. The 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 
Fig. 2. 
Thorax of Aramus (f nat. size), 
the fact that numerous spicules of bone lie across the 
junctions of the vertebrae^ so that the arrangement is^ so 
far, as in G. caruncidata. 
Tetrapteryx paradisea is characterized by a condition of 
