Scudder.] 
46 
[Nov. 7, 
collections have been made at special localities, one by Mr. R. D. 
Lacoe (to whom science is so deeply indebted for his persevering 
efforts in the field) at a locality in West Virginia, and a second at 
Richmond, Ohio, where the barren coal measures have been worked 
by Mr. Sam. Huston in a very successful way. The two deposits 
have much in common, in that they evidently carry a later fauna than 
those which in this country have previously yielded blattarian re- 
mains. Not a single species of Mylacridse has been found in either 
of them. Not having at present sufficient time at my disposal to 
work up the entire collection, I have thought it worth while to bring 
together here descriptions of the earliest species which were found 
at Richmond, of all of which drawings have been made, previously 
to the publication of a more extended illustrated paper in which 
they will all be discussed in full. 
The subjoined species all belong to the genus Etoblattina, and 
they are very similar to each other, but differ considerably from 
other species of the genus found heretofore in this country. Sev- 
eral of them are banded along the line of the nervures like the 
species described by me under the name Gerablattina balteata of 
the permocarboniferous of West Virginia. Etoblattina, though the 
most abundant in specific forms in Europe, has been known in this 
country by only three published species, though a fourth has long 
been known to me, and the species mentioned above, balteata , is to 
be looked upon also as an Etoblattina. These Richmond species, 
however, seem to form a section apart, characterized by the great 
length and slenderness of the internomedian area and by the fre- 
quent straightness of the internomedian vein ; and they are no 
nearer the other American (excepting Etoblattina balteata ) than 
they are to European species. Apparently they represent a rather 
younger fauna than our hitherto described American Etoblattinse. 
Etoblattina tenuis, nov. sp. 
A single well preserved wing, complete except at the base ; it is 
long and slender, tapering uniformly on both sides to the slightly 
produced but rounded tip, both borders being very gently arcuate, 
the surface uniformly and distinctly reticulate throughout. The 
mediastinal vein is preserved only apically, but it appears to ter- 
minate at the middle of the front margin, to be more than half as 
far from the border as the scapular and to have a few simple 
branches as distant as those of the scapular. The scapular and 
