94 
BULLETIN OF THE LABORATORIES 
tion of the ridge which bounds the angular furrow. The septa are or- 
namented along their margins by delicate granulations.” 
Mr. Meek’s figure and description, being drawn from a very im- 
perfect specimen, add nothing to the above and hardly serve to iden- 
tify the species. The specimen figured upon Plate VI, is from the 
lowest horizon, coming from the same bed as Spirifer marionensis. It 
is remarkable for the slight angle at which the sides converge toward 
the apex and the strictly quadrangular section. One face measures 15 
mm. transversely, the other 12 mm. at the aperture, which shows the 
presence of deep sinus at the angles, while the faces from the inclined 
flaps long since indicated as a character of the genus. The angle 
made by the sides is less than 10°. There are twelve transverse striae 
in one centimeter or about 15 in half an inch near the aperture. 
These stri^ exhibit distinct pearling upon their summits, the minute 
pustules being rather distant from each other. The length may have 
been three or four inches unless more rapidly tapering above. 
Other specimens from the shale below congl. I, are apparently 
identical. In the free stone the same species appears, though our 
specimens indicate a more obtuse spire and are not in a condition to 
exhibit the ornamentation. In the shale below congl. II, specimens 
of larger size but similar characters occur. Finally, small specimens 
from the Cuyahoga shale are decidedly of the same type Neither do 
we know how to distinguish the form found in the lower shales of the 
coal-measures, though the crenulations have not been seen. Nore of 
these show any traces of the barred longitudinal markings of C. byblis, 
W. , C.missouj'iensis, as identified by Meek and Worthen, has coarser 
and more distant striae. 
Conularia inicroneina. Meek, 
f Plate II, Fig. 19. ) 
“ Shell elongate-pyramidal, with the sides equally diverging from 
the apex with an angle of about sixteen degrees ; lateral surfaces near- 
ly flat, and without any mesial furrow [sic] but sometimes showing a 
very faint, slender mesial ridge, which becomes nearly or quite obso- 
lete toward the smaller end ; each of the four angles a little rounded 
and provided with a shallow, moderately distinct longitudinal furrow. 
Surface with numerous extremely small, closely crowded transverse 
