228 A ug, F. Foerste \ 
mond, Indiana, and elsewhere at the same horizon. It occurs 
also in the upper or Blanchester division of the Waynesville bed, I 
and occasionally in the Liberty. I 
In the Arnheim bed, in many parts of Kentucky, at Goodletts- 
ville, Newsom, and Clifton, in Tennessee, also at Arnheim, and 
a few other localities in Ohio, a variety of this species occurs which 
usually is larger, more triangular, less globose, especially along 
the posterior half of the shell, and usually with distinctly sharper, 
more angular plications. The degree of angularity attained by 
these specimens is not very well shown by the accompanying figure j 
of a specimen from Arnheim, Ohio. The more typical specimens j 
are abundant in the Arnheim bed south of the bridge across Salt i 
river on the road from Mount Washington to Bardstown, in Ken- I 
tucky. i 
Ceraurus miseneri, nov. sp. 
{Plate IV, Fig. 7 A, B.) 
. i 
The type specimen was found in the Whitewater bed at Rich- j 
mond, Indiana. A fragment retaining the glabella and fixed | 
cheeks wasTound at the same horizon at Dayton, Ohio. I 
The glabella widens from 5 .6 at the rear to almost 9 millimeters 
anteriorly. There are three pairs of globular lateral lobes of which 
the posterior pair is distinctly separated from the median part of , 
the glabella. The frontal lobe of the glabella, with its lateral 
extremities, has a semicircular outline. The occipital groove and j 
its extension across the fixed cheeks is distinct. The eyes are 
prominent. The genal angles are blunt and rounded. The : 
anterior outline of the head is moderately trilobate, owing to the 1 
reentrant angles which are in line with the diverging sides of jl 
the glabella. Surface marked by coarse but rather distant granules, 
Pleurse with a large node posterior to the pleural groove, near ! 
the middle division of the thorax. Another large node is located I 
at the point where the pleura is deflected downward. A third , 
and smaller node is found between these two, but nearer the ante- |; 
rior margin. i; 
