186 Paleontology op new jeesey. 



The casts of this species are so imperfect that most of the specific fea- 

 tures are very obscure. The generic relations are, however, quite distinctly 

 marked, allying it to a group of this genus quite abundant in the Lower 

 Tertiary beds. The lower part of the body volution is imperfect, even in 

 the best specimen, so that it is not possible to refer it with certainty to any 

 of the subdivisions of the genus. It would, however, appear to resemble 

 very nearly the forms usually referred to Surcula. Species of this genus 

 appear to be quite rare in the New Jersey Cretaceous, although not uncom- 

 mon in some other parts of the country, only a very few individuals which 

 can be referred to it having been recognized among the many casts exam- 

 ined. 



Formation and locality : In sandy marls at the base of the Upper Green 

 Marls at Farmingdale, New Jersey. Collected by Dr. Britton, and to be 

 found in the collection at Rutgers College. 



STROMBID^. 



Genus ROSTELLAEIA Lamarck. 



ROSTELLARIA NOBILIS, n. Sp. 



Plate XXIII, Figs. 16, 17. 



Shell, as indicated by the cast only, large and robust, with an elevated 

 spire which presents an apical angle of between 35° and 40°, and consists 

 in the cast of five volutions, with some two or three of the apical ones 

 absent. The volutions are strong, moderately and very evenly convex on 

 their outer surface, with strongly marked and abrupt sutures, which are 

 very compact and evenly coiled; the body volution is somewhat extended 

 below at the base of the aperture, which has been obliquely elongate-ellip- 

 tical in outline, and pointed above and below; the axis has been very 

 strong, as is shown by the large umbilical perforation of the cast; the sur- 

 face of the cast is entirely smooth, not showing the least indications of any 

 markings, folds, or other surface feature. 



The general form of this cast indicates a species of Rostellaria very 

 closely resembling the living species B. curvirostris Lam., and has probably 



