168 



PALAEONTOLOGY OF NEW-YORK. 



Fig. 5 c. A cup-form specimen, showing the inner or non-celluliferous surface ; and on the lower 

 lefthand side a portion of the cup broken and pressed inwards, showing the cellu- 

 liferous face. 



Fig. 5 d. The celluliferous face enlarged. 



Fig. 5 e. The non-celluliferous face enlarged. In this one, the transverse bars appear somewhat 

 more slender than in 1 b. 



Fig. 5 /. Several branches from the celluliferous face greatly enlarged, showing the bifurcation 

 of the branches, and the increasing rows of pores from the point of bifurcation up- 

 wards. 



Position and locality. In the shale of the Niagara group at Lockport, Rochester and other 

 places. The celluliferous face is rarely observable, though fine specimens of the opposite face 

 of the coral are not uncommon. (State Collection.) 



Genus CERAMOPORA {nov. gen.). 

 [Gr. x5pa|xig, imbrex, and ^opos, pora.] 



Coral incrusting, or in flattened hemispheric forms ; cells arranged in alternating or imbri- 

 cating series ; apertures arching or triangular, with the apex above. 



The two first species placed under this genus present peculiarities sufficient to distinguish 

 them from any described genus of fossil corals. They are probably Bryozoa, though the flattened 

 hemispheric forms do not appear to be attached, and the general character is not unlike some 

 of the true corals. 



The characters of the Genus Berenicia are applicable to a considerable extent to some 

 species, where the cells are more or less regularly disposed from a centre. The Berenicia 

 irregularis of Lonsdale, and B. megastoma of M'Cov, are similar in general character to the 

 first species of the present genus. There are too marty objections to the adoption of the name 

 Berenicia for fossil corals, since it was originally applied to a living type ; and even among 

 existing species, there appears to be much doubt and confusion in its application. 



