352 CRETACEOUS PALEONTOLOGY. 



Family ESCHABIDAE. 



Genus LEPRAUA Johnston. 



Lepralia aspera (Gabb & Horn). 



Plate XXVI., Fig. 9. 



1862. Reptocelleporaria aspera G. & H., Jour. Acad. Nat. Sci. 



Phil., 2nd sen, vol. 5, p. 131, pi. 19, fig. 14. 

 1864. Reptocelleporia aspera Meek, Check List Inv. Foss. N. 



A., Cret. and Jur., p. 3. 



1868. Reptocelleporia aspera Con., Cook's Geol. N. J., p. 722. 

 1905. Reptocelleporaria aspera Johns., Proc. Acad. Nat. Sci. 



Phil., 1905, p. 5. 



Description. Zoarium encrusting, composed of numerous 

 superimposed layers, sometimes presenting a knotted or coarsely 

 tuberculous surface. Zocecia oval to rounded hexagonal in form, 

 placed irregularly but with a tendency to a general arrangement 

 in one direction in the same region, convex and very prominent 

 on the surface, separated by deep irregular depressions. Zocecal 

 apertures anterior but not terminal, broader than long, semi- 

 circular to rounded subquadrate in outline, usually with the 

 proximal margin straight, outer surface marked by a small 

 number of large, rounded elevations placed irregularly, and with 

 those nearest the edge elongated with grooves between them 

 which resemble the slit-like openings of Membraniporella } these 

 grooves are present around the entire margin of the zooecia, and 

 at their outer extremity a small pore is usually seen piercing the 

 outer wall. 



Formation and locality. Vincentown limesand, Timber Creek 

 and near Mullica Hill (Gabb and Horn). 



Geographic distribution. New Jersey. 



Genus MUCRONELLA Hincks. 



Mucronella muralis (Gabb & Horn). 

 Plate XXVI., Fig. 10. 



1862. Escharinella muralis G. & H., Jour. Acad. Nat. Sci. 

 Phil., 2nd ser., vol. 5, p. 140, pi. 19, fig. 23. 



