Winchell.] 
260 
[Jan.4, 
s 
occipital ring, which extends, narrowing in width and curving backwards, 
entirely across the border, fading out toward the short, acute genal angle. 
Border concave, bounded by a prominent ridge, outside of which is a 
linear groove limited peripherally by a sharply elevated, delicate, linear 
margin. Surface of glabella, accessory lobe and neck-ring covered with 
fine unequal granulations; a row of granules along the ridge of the border. 
Pygidium broadly rounded, nearly twice as 'broad as long, apparently 
depressed ; axis with 8 or 9 rings, - tapering to the posterior end, which is 
somewhat abruptly rounded off one-tentli of an inch from the extremity 
of the pygidium; lateral lobes with 8 or 9 segments becoming obscure 
posteriorly. Border about one-sixteentli of an inch broad, marked on 
the under side by nine rigid, sharply impressed parallel striae. Exterior 
of the crest very finely and obscurely granulated. Length, about three- 
eighths of an inch ; breadth, five-eighths. 
Other characters of this species are unknown. It seems to approach 
nearest to .P. articulata, Hall sp. (XV. Rep. 1ST. Y. Regents, p. 107.) From 
the Waverly of Ohio ; but is destitute of the anterior and middle furrows 
of the glabella. Neither does the description of that species give the sur¬ 
face characters, though comparison is made with Proetus Missouriensis, 
Slium., from the litlrograpic limestone of Missouri, which is a granulated 
species. It differs from Proetus ( Phillipsia ) ellipticus, M. & W. (Ill. 
Geol. Rep. Ill, 460), from the Ivinderhook group, in the characters of the 
cephalic border, in the absence of glabellar furrows, and in the border of 
the pygidium. 
From calcareo-argillaceous beds, of yellowish brown color, and from 
calcareo silicious shales, Hickman and Maury counties, Tennessee. 
Phillipsia Doris, Hall sp. (XIII. Rep. N. Y. Regents, p. 112, and 
Winchell, Phil. Proc., July, 1865, p. 183.) 
Several small pygidia occur in the collection from bed No. 5, Rockville, 
Ohio. 
Pleurodictyum problematicum, Goldf. 
Well preserved specimens occur at Newark, Ohio. Collected by Rev. 
II. Herzer. 
Murchisonia sp ? 
A fragment nearly three inches long, consisting of four whorls—proba¬ 
bly about one or two whorls wanting at the apex and an unknown por¬ 
tion from the other end. The whorls are very oblique, the deeply im¬ 
pressed suture making an angle of 40° or 45° with the axis of the shell. 
The apical angle of the spire was not more than 18° to 25°. It most 
nearly resembles M. quadricincta , Win., but it has quite a different ex¬ 
pression, besides being much larger and having more oblique whorls. 
From near Shafer’s, Pennsylvania. 
From Newark is a Sigillarict, and a Myalina too imperfect for identifi¬ 
cation. Two or three species of Fenestellidce occur at Sciotoville, Rock¬ 
ville, and in Licking county. Three species of,crinoidal stems exist in 
Prof. Andrews’ collection, from Newark, Granville and Sciotoville. A 
jSanguinolarid ovchfs at Sciotoville; and at Granville and Sciotoville is 
an interesting compound coral with minute tubes, whose specific details 
are well exhibited, though its generic position is undetermined. 
