﻿AMERICAN TERTIARY AND CRETACEOUS FOSSILS. 401 



Colony large, (about one inch in diameter,) formed of plates; lateral plates not 

 numerous, given off rectangularly ; summit of plates perforated by cells, and thicker 

 than the rest of the plate ; lateral openings triangular, without any marked arrange- 

 ment. 



Locality. — Timber Creek, N J. 



Resembles R. obliqua, D'Orb. 



REPTOMULTICAVA. 



R. cepularis, Q. and H. PI. 68, fig. 33, 35. 

 Proc. Acad. Nat. Sci., 1860, p. 367. 



Colony irregular, nodulated, with a tendency to a pyramidal outline ; cells elon- 

 gated; hexagonal, large. 



Locality. — Timber Creek, N. J. 



MULTICRESIS. 



M. paevicella, Q. and H. PI. 69, fig. 36, 38. 

 Proc. Acad. Nat. Sci., 1850, p. 367. 



Colony large, anastomosing in the manner of Rhipidogorgia flabellum : cells small, 

 resembling those of M. lanata, D'Orb.; cellules wanting. 



ADDENDA. 



EOCENE SPECLES. 

 CIRSOTREMA, March. 



C. megaptera. PI. 68, fig. 1. Elongated, scalariform ; whorls seven or eight (?) 

 apex broken ; strongly cancellate, the transverse ribs being the smallest, and marked 

 by large varices placed irregularly ; the lower part of the body whorl has a carina 

 about the size of the longitudinal ribs ; aperture circular, with a very wide, irregular 

 lip-like varix. 



Locality. — Eocene, Ala. Dr. Spillman. 



LEIORHINUS, n. g. 



Fusiform ; spire about as long as aperture ; columella slightly twisted and with 

 a fold or thickening on the edge, extending to the end of the canal ; inner lip thick- 

 ened and with one tooth near the suture ; outer lip thickened posterior to the edge, 

 edge thin and incurved, with a small emargination posteriorly, and opposite to the 



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