2 , 
upper surface may be uniformly rounded, undulated, or Xobed. The sis©, 
©£ coarse, i# variable j the massss may be ©svsr&X feat in diameter* 
Th© qaliess are circular, or slightly deforced. Their diamstsr, 
measured between thecal summits is fro® % to 2*5 -ram* In depression® 
of the surface they «o&y be smaller, about 1*5 ram*, but these are ab- 
normal. Their edges are fro® .5 to almost 2 mm* apart , about 1 ram* 
is probably an average. The ealioular edges are slightly elevated. 
The intsroor/aUit© areas are ©©state? Costa© corresponding to all 
septara eubequ&l or alternating in also, the©© of adjoining ©alio#® 
meeting, edges dentate, thicker than the width of the intercostal 
spaces and moderately elevated* 
Septa in three eorapXet© cycles, primaries and secondaries equal, 
ra|h®r sismi , extending to the columella and fusing to it; tsrtiarie® 
shorter, about half the length of the primrlss, somewhat thinner, 
inner edges free* Margins of the primaries and secundaria* decided- 
ly ©xsartj their inner edge* fall perpendicularly to the bottom of the 
ealicuX&r fossa, and boar just above the columella one or two prominent 
teeth, with a few smaller teeth above? the septal arch is either very 
gentle, obtuse, or it may be truncate* its dentations fine, the outer 
nargias steep, but more inclined than the inner, dentations relatively 
coarse. Septal faces finely granulate j in longitudinal sections, the 
inner edges are lacerate, the last cycle with parf ©rations. 
Badothse&l dissepiments delicate, thin, nearly horizontal, slight- 
ly|$hclinsd downward from the oorallite walls. In this series of sped- 
mens the corallit® walls are thick and close together, those of adjacent 
eorallitma sometimes being solidly fused together? usually, however, 
there is some ©xothoea, consisting of *to€i, subhorixontal dissepiments. 
