392 W. B. Dwighit—Fossils of the Wappinger Valley Limestone. 
From Rocupate. 
* Orthis tricenaria ; several. 
Caudal shield of small trilobite, repay Asaphus vetustus,; one. 
a (probably proteiforme .; 
ll defined; one. 
Chetetes, named abov e Ch. tennissima ; many. 
Encrinal columns ; execedin gly numerous. 
Receptaculites; numero 
From Prieasant VALLey. 
* Orthis tricenaria ; several. 
* O. pectinella ; one. 
0. ia; 
*Strophomena alternata ; ; one or more. 
Cheetetes ten seaetaygel 3; very common. 
Encrinal colum peas nt. 
iL) . 
Undetermined ai several. 
Between Sarr Point anp PLEASANT VALLEY. 
Trocholites ? ; ri tet, Dall numerous, 
neoceras cons rictum ?; one specimen, two centimeters in 
gaa oo —— same in wid 
erata ; one, three centimeters ne with twelve septa; 
one, gree a centimeter long, with five septa. 
Mancuester, 
Fucoids (Buthotrephis gracilis ?); one. 
Besides other conclusions from these researches, the follow- 
ms may be safely drawn:— 
The “ Barnegat limestone,” contrary to views hitherto 
pre weeisen: is a highl fossiliferous formation, though on 
account of alteration, ieeemi localities are rare compared 
with the exposure o: 
2. The fossils are sopateni) those of the Trenton limestone, 
and therefore immediately underlie - este shales which 
are now referred to the Hudson Rive 
8. In the presence of the Chicas of ‘delicate structure, 
and of the layers thickly packed with spiral shells, the lime- 
stone appears to differ from that of any other known region of © 
this formation. 
Vassar College, Poughkeepsie, N. Y., April 7, 1879. 
* Clearly defined as to specific character. 
