Maryland Geological Survey 475 



Collections. — Maryland Geological Survey, Philadelphia Academy of 

 Natural Sciences, New Jersey Geological Survey. 



Outside Distribution. — Monmouth Formation. Navesink marl. New 

 Jersey. Selma Chalk. Exogyra costata zone, Prairie Bluff, Alabama. 



Anchura hebe (Whitfield) Weller 



Rostellaria hebe Whitfield, 1892, Mon. U. S. Geol. Survey, vol. xviii, p. Ill, 



pi. xiv, figs. 11-14. 

 Anchura abrupta Weller, 1907, Geol. Survey of New Jersey, Pal., vol. iv, 



p. 715, pi. lxxxii, figs. 5, 6 (ex parte). 



Description. — " Shell moderately large, with an elongated conical spire 

 and rather short body whorl ; volution strongly rounded in the cast, num- 

 ber unknown but probably seven or more, the last one proportionately 

 larger and more ventricose than any of the others; base short but some- 

 what extended near the columella r cavity, which is rather large, showing 

 the axis to have been strong ; upper part of the body volution largest and 

 the lower part rounded obconical, slightly extended below; aperture, as 

 shown by the cast, of but moderate size, narrowly elliptical in form, being 

 nearly equally curved on the outer and inner sides ; the outer side a little 

 the more strongly so; upper and basal angles of the aperture acute; the 

 upper one extended upon the preceding volution, causing the last volution, 

 as it approaches the aperture, to overlap that one somewhat as in many of 

 the Strombidw. Columella smooth, without folds or ridges of any kind ; 

 suture between the coils of the cast strong and deep, but separated by only 

 a narrow space, showing the shell at this part to have been thin ; the sur- 

 face of the shell has been marked by spiral bands of considerable width, 

 but their number is not determinable from the specimens at hand ; there 

 is, however, evidence of a quite strong one near the center of the volutions, 

 and indications of several others, especially on the basal portion of the last 

 volutions, but not presenting any angulation as in Anchura." — Whitfield, 

 1892. 



Type Locality. — Mullica Hill, New Jersey. 



This species is the largest and the most inflated species of the genus 

 within the confines of Maryland and Delaware. The shell characters are 



