Preliminary Notes on Cincinnatian and Lexington Fossils 321 
Geological position. The specimen here figured was obtained 
about 2 miles northwest of Miltohvillej Ohio^ east of the Blanken- 
becker farm^ along Dry Fork of Elk Run, a short distance above 
the lower Hehertella insculpta zone. This lower Hebertella 
insculpta zone marks the base of the Waynesville bed from the 
neighborhood of Miltonville as far toward the southeast as the 
southern part of Adams county. Dinorthis carle yPinsolens 
has been found along this line at the crossing of the road from 
Middleboro to Oregonia, two miles east of Hammel, in Warren 
county. It occurs in the Stony Hollow northwest of Clarksville, 
and on SewelFs Run, southeast of Clarksville; also about a mile 
northwest of Blanchester; all in Clinton county. It is found also 
southwest of Woodville, in the northeastern part of Clermont 
county. A single specimen, not in situ but at the lower part of 
the Blanchester division was found about two miles southwest of 
Oxford, Ohio. In Indiana, the same variety occurs at the base 
of the Blanchester division, but without the presence of Hebertella 
insculpta^ on the east side of Blue creek, west of Blue creek 
post office; at the home of Nick Senefeld, four miles south of 
Brookville; at the home of William Bauman, three miles south- 
west of Brookville; and also in Union county, opposite the home 
of Robert Martin, half a mile above the mouth of Silver creek. 
Dalmanella emacerata, Hall. 
{Plate VII, Fig. I.) 
In the original description of this species by Hall no clue is 
given as to the horizon at which the type specimens were found 
beyond the fact that they occurred in the shales of the Hudson 
river group near Cincinnati, Ohio. Usually, at that time, the 
term shales was applied by preference to the Eden beds. Later, 
S. A. Miller identified with this species a form found 160 feet above 
low water in the Ohio river, at Columbia avenue and Torence 
road, and in the excavation of Deer creek tunnel. The specimens 
from this Middle Eden horizon were figured in volume XIV of 
this Bulletin as Dalmanella emacerata-filosa (fig. i, plate V). 
In these specimens, the radiating striations appear more numer- 
ous than in the types of Dalmanella emacerata^ preserved in the 
American Museum of Natural History, in New York city. 
The specimens most nearly conforming to the first published 
