OF DENISON UNIVERSITY 
95 
stride, of very nearly the same size on all parts of the shell ; striae 
gently arching forward as they cross the side, and scarcely interrupted 
...at the little mesial longitudinal ridge, minutely crenate, and separated 
by extremely slender linear furrows, numbering fifteen in the space of 
one-tenth of an inch on all parts of the surface; crenulations of striae 
twelve to fifteen in one-tenth inch.” 
Length apparently about 3 inches. 
Compare O. siibcarbonaria^ M. and W. 
Conularia tyhlis, White. 
Conularia byblis, White, Proc. Post. Soc. N. H., Vol. IX, p. 22. 
“ Shell large, in the shape of a truncated pyramid, length twice (?) 
the width at the base, apex broadly rounded, smooth, ^iides depressed, 
convex; grooves at the angles narrow, a faint longitudinal depression, 
along the middle of each side; transverse ridges narrow, distinctly 
raised, forty-five or fifty to the inch, but slightly curved in passing 
from the salient angles to the faint central depression, at which they 
meet at an obtuse angle and cross with slight interruption ; sometimes, 
however, they alternate for a short distance and then cross continu- 
ously as before. Spaces between the ridges finely crenulate. Che- 
mung^beds at Burlington, la.” Winched states lurther that there are 
•small granulations ranged in a line along the crests of the ridges, 60- 
75 of which occupy the space of an inch. He refers the “crenula- 
tions between the ridges ” to transverse bars developed between the 
ridges *in worn specimens. The septa range ftom 56-128 to the inch. 
The septa-margins trend toward the base, but they are more nearly 
straight from angle to centre than C. newberryi. Winchelbs speci- 
mens come from dark bituminous shales. Hickman Co., Tenn. 
This form has not been encountered in Licking county, but is 
quoted for reference. 
Stictopora striata, Hall. 
(Plate XH, Fig. 40.) 
Beautifully preserved and abundant specimens of a Stictopora are 
found in the nodules at Moot’s run, and these can not be distinguished 
with the time at disposal from the Hamilton species quoted. Several 
