450 Systematic Paleontology 



Cancellaria f septemlirata Conrad, 1868, Cook's Geol. of New Jersey, p. 729. 

 Pyropsis septemlirata Gabb, 1876, Proc. Acad. Nat. Sci., Phila., p. 285. 

 Pyropsis (Rapa?) septemlirata Whitfield, 1892, Mon. U. S. Geol. Survey, 



vol. xviii, p. 44, pi. iii, figs. 4-6. 

 Pyropsis septemlirata Johnson, 1905, Proc. Acad. Nat. Sci., Phila., p. 24. 

 Pyropsis septemlirata Weller, 1907, Geol. Survey of New Jersey, Pal., vol. 



iv, pi. lxxxviii, figs. 1-4 (ex parte). 



Description. — " Shell subglobose, spire low, whorls two, mouth wide, 

 surface, from markings on the cast, apparently ornamented by about seven 

 prominent revolving lines. A cast." — Gabb, 1861. 



Type Locality. — Mullica Hill, New Jersey. 



" Shell, as shown by the internal casts, depressed globular or broadly 

 oblate in general outline, the volutions being very ventricose, and the 

 spire low, the inner volutions rising but very little above the outer ones, 

 and the base in the casts being quite short; volutions probably not more 

 than three and a half or four in number, and very rapidly expanding, so 

 that the last one forms nearly the entire bulk of the shell, the outer one 

 being slightly angular in the upper part; aperture large, semi-lunate or 

 semi-elliptical, as wide as or wider than high, modified on the inner upper 

 half of the preceding volution, and slightly extended below by the pro- 

 jection of the short columella upon which there appears to have been a 

 strong, angular ridge; surface marked by very strong, angular, spiral 

 ridges with concave interspaces; seven or eight of these may be counted 

 below the angulation of the outer volution, including the angle itself, and 

 two or three smaller ones above this point on large specimens ; those 

 below the angulation gradually decrease in distance and become more and 

 more oblique as they approach the columella." — Whitfield, 1892. 



Whitfield is incorrect in his observation of a columellar fold. The inner 

 lip is non-plicate. The species is represented in Maryland by a single 

 worn cast referred rather dubiously to this form. 



Occurrence. — Monmouth Formation. — Bohemia Mills, Cecil County. 



Collections. — Maryland Geological Survey, Philadelphia Academy of 

 Natural Sciences. 



Outside Distribution. — Monmouth Formation. Navesink marl. New 

 Jersey. 



