P. angui liens is 
the lateral pairs, on the ends of the solitary and principal 
directives. Usually a prominent dentation at the inner edge 
of the wall. Synapticula well developed, three rows in the 
wall, and a ring of thick ones, coinciding with the palar ring, 
around the axis of each corallite. Trabeculae of columellar 
tangle coarse; axial tubercle present. 
In longitudinal section there are in 3.5 mm. about 11 
synapticula, in the same distance about 10 vertical rods. The 
spaces of approximately the same thickness as the solid parts, 
except the 'median portion of a synapt iculum is thinner, than its 
ends. 
Locality : Island of Anguilla, West Indies, P. T. Cleve, 
Collector. 
Ueologic horizon : Upper Oligocene. 
Type: 
University of Upsala 
