328 CRETACEOUS PALEONTOLOGY. 



1862. Multicrescis parvicella G. & H., Jour. Acad. Nat. Sci. 



Phil,, 2nd ser., vol. 5, p. 178, pi. 21, fig. 70. 

 1864. Multicresis parvicella* Meek, Check List Inv. Foss. N. A., 



Cret. and Jur., p. 4. 



1868. Multicrescis parvicella Con., Cook's Geol. N. J., p. 723. 

 1905. Multicresis parvicella Johns,, Proc. Acad. Nat. Sci. Phil., 

 P- 5- 



Description. Zoarium consisting of small subcylindrical 

 branches without an axial tube, usually a little over i mm. in 

 diameter, and more or less irregularly dividing and coalescing. 

 Zocecia circular, irregularly arranged, remote, surrounded by a 

 raised rim when perfect. The spaces between the zocecia occu- 

 pied by numerous, irregularly arranged smaller mesopores whose 

 apertures are situated in the bottoms of rounded or angular 

 depressions. 



Remarks. This species superficially resembles Cavaria du- 

 mosa Ulrich, from the Eocene of Maryland, but the branches 

 of the New Jersey species are more slender and divide less fre- 

 quently, and the zocecia and mesopores are somewhat more scat- 

 tered. The most important difference, however, is in the absence 

 of the central axial hollow or tube in the New Jersey form, the 

 character which distinguishes the genus Heteropora from Corc;- 

 aria<. In worn specimens of this species the zocecia and meso- 

 pores are more nearly equal in size, and the appearance of the 

 specimens is much changed. 



Formation and locality. Vincentown limesand, Vincentown 

 (154), Timber Creek and near Mullica Hill (Gabb and Horn). 



Geographic distribution. New Jersey. 



Family MBLIOBBITITIDAE. 



Genus RETELEA d'Orbigny. 



Retelea ovalis Gabb & Horn. 



Plate XXIII., Figs. 3-4. 



1862. Retelea ovalis G. & H., Jour. Acad. Nat. Sci. Phil.. 2nd 



ser., vol. 5, p. 164, pi. 21, fig. 52. 

 1864. Retelea ovalis Meek, Check List Inv. Foss. N. A., Cret. 



and Jur., p. 4. 



