100 
Aug. F. Foerste 
ter of the surface ornamentation. In a calyx 44 mm. in width the 
margins rise only 13 mm. above the base. The basal cavity has a 
width of 7 mm. Surface nearly smooth, but under a lens the plates 
are seen to be covered by a network of fine lines radiating in an 
irregular manner in sets from various centers, the lines bending in 
an irregular vermiculiform manner. Named in honor of Mr. i| 
Frank Springer. 1 1 
Waldron bed: Newsom, Tennessee. I 
' 
I; I 
Heliophyilum pegramensis, sp. nov. j| : 
{Plate III, Fig. 58 A, B.) j ! 
Corallum simple, small, short and broad, arising from a very i 
oblique base. Diameter of calyx rarely exceeding 25 mm.; corre- j < 
sponding height, 15 mm., the tip of the base usually extending U 
beyond the vertical projection of the margin of the calyx. Width i I 
of calyx in a specimen 25 mm. wide is about 15 mm.; depth of 1 
calyx about 7 mm., but the upper margins of the corallum are j 
flattened, as is frequently the case in Heliophyilum. Vertical | 
septa, 63 to 68; equal in size at the margin of the calyx, but half 
way down the calyx the alternate septa are adnate to the primary 
ones. At the base of the calyx the septa are twisted to the right I 
on approaching the center. Only a slight indication of a septal ! 
fossette is found in the calyx, on the convexly curved side of the 
corallum. I 
Brownsport bed: Pegram, Tennessee. 
Favosites obpyriformis. ^ 
{Plate IV, Fig. 74.) 
Coralla chiefly in nearly globular masses, sometimes inversely 
pear-shaped, possibly formerly covered with an epitheca toward 
the base, but no trace of this is found in the specimens at hand. | 
Some specimens attain a height of 12 cm. The corallites vary | 
from 3 to 4 mm. in width, averaging probably nearer 3 mm. Con- . | 
necting pores large and distant, on the flat walls as well as near | 
the angles of the corallites. Apparently these pores tend to be j 
more frequent near the horizontal diaphragms, so that they tend 
to be arranged in series at various levels. These diaphragms 
frequently are distinctly deflected downward at various parts of 
