DEVONIAN FAUNAS. 385 
Remarks.—The New Jersey specimens of this species have been ob- 
served only from the outlet of the Oak Ridge reservoir near New- 
foundland.. They possess the characteristic, regular, strong, lamelli- 
form, concentric ridges and the deeply-emarginate, post-inferior ex- 
tremity of the species, and the identification is more satisfactory than 
that of almost any other species collected from this horizon. 
PARACYCLUS ELLIPTICA Hall. ? 
1885. Paracyclus elliptica Hall, Pal. N. Y., vol. V., pt. I., p. 440, 
pl. 72, figs. 23-33, pl. 95, fig. 18. 
A single distorted and imperfect specimen of a pelecypod shell from 
the outlet of the Oak Ridge reservoir suggests Parucyclus elliptica, 
but the identification is necessarily uncertain. 
GRAMMYSIA sp. undet. 
Plate LIIIL., Figs. 8-9. 
At the outlet to the Oak Ridge reservoir near Newfoundland several 
specimens of Grammysia have been collected. All of them are dis- 
torted, and are too imperfectly preserved for certain specific identifi- 
cation, but they possibly represent more than one species. Some of 
them resemble the illustrations of G. alveata (Con.),* but the identifi- 
cation cannot be made with certainty. 
The members of this genus may be easily recognized by their robust 
form and by the coarse, concentric wrinkles of the shell. These New 
Jersey specimens are probably identical with some of the numerous 
forms which have been described from the Hamilton formation of 
New York. 
Lal Neey<, vol-) V.,, pt. L., Dp. 310; pl. GOs figs; loi, 
25 
