(')F DENISON UNIVKRSri’Y. 
71 
Kentucky examples. Several however, are more delicate and have 
sixteen instead of fourteen zooecia in the space of 5 mm. The aper- 
tures also are a little larger and the peristomes very little developed. 
The fragment here figured is one of them and shows these features 
very well. If a name is desirable they may be styled Fenestella tegalis 
var. 7nacet. ^ 
Formation and locality : The types are from shales of the Keo- 
kuk group at King’s Mountain, Ky., while the Ohio specimens come 
from the Cuyahoga shale at Richfield and Lodi. 
FENESTELLA BURLINGTONENSIS, Ulrich 
Fenestella burlingtonensis , Ulrich. Rept. 111. Ueol Surv. pi. XLTX, fig. i, la. 
(now in press.) 
Several worn fragments of a species apparently identical with the 
Burlington types of this species occur on a small slab from Lodi, O. 
Associated with them are more or less weathered examples of no less 
than ten distinct species of Bryozoa, among them F. regalis, Ptilopora 
paupera^ Pinnatopora Vinsi, and Rhombohora incrassata, all described 
by me from the Keokuk group of Kentucky and Illinois in the de- 
layed, vol. VIII, Illinois Geological Survey. 
FENESTELLA TENAX. UInch. 
Fenestella tcnax, Ulrich. 111. Geol. Surv. vol. VIII, pi. II, figs. 2-2(1. (in press.) 
Two years ago I received several fragments of fossiliferous rock 
from Rev. H. Herzer which he had collected in the upper beds of the 
Waverly series at some locality in Cuyahoga Co. These furnished 
good gutta-percha impressions of both the obverse and reverse sides of a 
small species of Fenesiella that I cannot now distinguish from the Ken- 
tucky and Illinois types of F. tenax. This species though probably 
the most abundant in the Chester limestone, began its existence as 
■earl)^ as the formation of the Keokuk group, a number of specimens 
collected at Keokuk, Iowa, and Nauvoo, Illinois, being, apparently, 
identical with the Warsaw and Chester examples, as well as with the 
Ohio specimens now before me. 
Undeteriviined species of Fenestella. 
Among Prof Herrick’s material there are two specimens of a 
