SHO Da NV 
CEPHALOPODA OF THE EOCENE MARLS OF NEW JERSEY. 
In Mr. F. B. Meek’s “Catalogue of Eocene Shells and Fish from Shark 
River,” published in the appendix to the Geological Report of New Jersey 
for 1868, on p. 731, et seq., he enumerates three species of Cephalopods: 
Aturia Vanuxemi and two species of Cimomia, C. Burtini Nyst’s sp. and C. 
Lamarcki Deshayes sp., both originally published under the genus Nauti- 
lus. Among all the fossils which I have examined from the Eocene layers 
of New Jersey I have seen evidence of only two species of Cephalopoda, 
namely, Atwia Vanuxemi and that herein described as Nautilus Cookana. 
No specimen or fragment which I have seen would appear to correspond to 
or possess the features of the genus Cimomia as given by Mr. Conrad, which 
are as follows: ‘“Nautiloid; septa sinuous, doubly waved, or sigmoid, num- 
erous; siphon small, central.” Nautilus Burtini Galeotti is given as the 
type. The two species above mentioned, N. Burtini and N. Lamarcki, are 
usually considered as synonyms of each other, but Deshayes assures us they 
are very distinct. Mr. Meek appears to have identified or recognized both 
forms, but upon what authority he does not say. The nautiloid forms 
which I have seen have only the straight, or nearly straight, septal les 
crossing the cast, and certainly could not have given rise to the mistake 
had they been examined. So it is possible Mr. Meek may have seen some 
form that has never come under my observation. The specimens of the 
following species, to which I have given a new name, certainly do not 
possess any of the features of Mr. Conrad’s genus, and I can find no deserip- 
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