Strophomena and Other Fossils 
95 
In the Paleontology of Minnesota, vol. iii^ part 1, on page 388, 
Winchell and Schuchert refer to Strophomena neglecta a specimen 
from Savannah, Illinois. This specimen, from the Schuchert 
collection, is represented by Fig. 5 on plate VII of this Bulletin. 
The specimen is not distinct in any essential particular from an 
undoubted specimen of Strophomena neglecta, from Oregonia, 
Ohio, belonging to the Nickles collection. The latter {Plate V, 
Fig. 3 B) was figured because it was a narrow individual, present- 
ing a somewhat triangular appearance, but the same features 
on the interior are presented by numerous other valves from the 
same locality, having the ordinary outline. A specimen similar 
to that from Savannah was found at the top of the hill immediately 
south of Kagawong, on Manitoulin Island {Plate XI, Fig. 10), 
in strata belonging a short distance above the Hehertella insculpta 
horizon, in the Richmond group. It is remarkable merely for 
being the only specimen of Strophomena neglecta discovered in a 
large series of Strophomenas found at essentially the same horizon 
at different localities on the island. 
It is the presence of specimens of this type among the Richmond 
fossils of the Mississippi Valley which makes it desirable that 
Strophomena planodorsata be subjected to further study, on the 
basis of a much larger series of specimens than that at the service 
of the writer. 
Strophomena neglecta is another of the species suggesting a 
connection between the Blanchester division of the Waynesville 
as exposed in Bath, Fleming and Lewis counties, in southwestern 
Ohio, and in Indiana as far south as Jefferson county, with the 
Richmond deposits in the Mississippi Valley by way of northern 
Illinois. By this is not meant an exact equivalency of the strata 
containing Strophomena neglecta to those containing Strophomena 
planodorsata, but at least an approximate equivalency. 
Strophomena neglecta represents a reintroduction of the form 
of shell typified by Strophomena incurvata. 
Strophomena vetusta-precursor, var. nov. 
{Plate X, Figs. 1 A, B, C ; Plate V, Figs. 2 A, B, not the types) 
Typical specimens of Strophomena vetusta are abundant in the 
Whitewater bed. They are comparatively common in the Lib- 
erty bed, especially in the upper half. However, near the middle 
