346 CRETACEOUS PALEONTOLOGY. 



Pormation and locality. — ^Vincentown limesand, Timber Creek 

 (Gabb and Horn). 

 Geographic distribution. — New Jersey. 



Genus RepTESCHareIUNa d'Orbigny. 



Reptescharellina prolifera Gabb & Horn. 



Plate XXV., Pig. 2. 



1862. Reptescharellina prolifera G. & H., Jour. Acad. Nat. Sci. 



Phil., 2nd sen, vol. 5, p. 146, pi. 20, fig. 28. 

 1864. Bscharellina prolifera Meek, Check List Inv. Foss. N. A., 



Cret. and Jur., p. 3. 

 1905. Reptescharellina prolifera Johns., Proc. Acad. Nat. Sci. 



Phil, 1905, p. 5. 



Description. — Zoarium incrusting. Zocecia arranged in quin- 

 cunx and in radiating lines .from a central group of two or three 

 zooecia which are somewhat smaller than the rest although per- 

 fectly developed in all their structural details ; form of the zooecia 

 oval, elongated, convex, slightly more elevated at the distal than 

 at the proximal end, separated from each other laterally by dis- 

 tinct depressed lines produced by the meeting of the convex 

 surfaces, and anteriorly by the elevation of the distal extremity 

 above the proximal extremity of the succeeding z:ooecium. 



Zooecial apertures rounded-subquadrate toi circular in outline,, 

 bordered by an abrupt but little thickened lip which alsoi encircles-- 

 the avicu3aria. Avicularia rather large, genlerally elongated 

 longitudinally, often narrowed at their anterior extremity, situ- 

 ated one about midway upon either side oif each zocecial aperture. 

 Ovicels numerous, small, subglobular, rounded anteriorly and. 

 emarginate at the border of the zooecial aperture. 



Remarks. — This is a rare foirm which has not been met with 

 in the recent collections, but its chai^acters seem tO' be sufficiently 

 distinct toi admit oif its easy reco'gnition in case it is met with in 

 future co'llections. 



Formation and locality. — Vincentown limesand, near MuUica 

 Hill (Gabb and Horn). 



Geographic distribution. — New Jersey. 



