328 CRETACEOUS PALEONTOLOGY. 



1862. Mwlticrescis 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. _ Midticresis parvicella Johns., Proc. Acad. Nat. Sci. Phil., 



1905, 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. 

 Zooecia circular, irregularly arranged, remote, surrounded by a 

 raised rim when perfect. The spaces between the zooecia 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 dii- 

 mosa Ulrich, from the Eocene O'f 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 Cav- 

 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 MBLIOEBITITIDAE. 



Genus ReteIvI:a d'Orbigny. 



Retelea ovalis Gabb & Horn. 



Plate XXIII., Figs. 3-4. 



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



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

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



and Jur., p. 4. 



