Astrocoenia duerdeni 
has entire septa. Astroooenia pumpellyi Vaughan from Flint 
River, Georgia, has mural styles similar to those of A. duerdenl , 
the former, however, has twelve septa. As both species differed 
from typical Astroooenia in the possession of these spines 
whether they should be placed in that genus or a new one created 
for them had to be considered# For the present at least, it 
seems inadvisable to give them a new generic designation, as the 
mural spines may not 
