186 PALEONTOLOGY OF NEW JERSEY. 
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 Swrcula. 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. 
STROMBIDZE. 
Genus ROSTELLARIA Lamarck. 
ROSTELLARIA NOBILIS, n. sp. 
Plate xxii, 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 R. curvirostris Lam., and has probably 
