6^2 CRETACEOUS PAI.EONTOLOGY. 



FamUy PYRAMIDBLLIDAE. 



Genus Obeliscus Humphrey. 



Obeliscus conellus Whitfield. 



Plate LXXVL, Fig. i. 



1892. Obeliscus conellus Whitf., Pal. N. J., vol. 2 (Monog. U. 



S. G. S., vol. 18), p. 151, pi. 19, fig. I. 

 1905. Pyramidella conellus Johns., Free. Acad. Nat. Sci. Phil. 



(1905), p. 20. 



Description. — "Shell minute, the extreme length of the only 

 specimen known being only about one-sixth of an inch. Apical 

 angle 38° or 40", giving a sharply conical spire; volutions five in 

 number, very slightly scaliform, with channeled sutures, but with 

 the surface of the volution flattened in the direction of the spire; 

 apex apparently rounded; body volution subangular at the line 

 of contact with the lip; aperture acute-ovate, sharp at the upper 

 margin, and possibly pointed below (the specimen is imperfect 

 at the base) ; columella slender, rounded, slightly prolonged ; 

 marked by a proportionally very strong, tooth-like ridge just 

 below the swell of the volution ; outer lip of the aperture sharp • 

 axis imperforate; surface smooth, but not polished on the speci- 

 men, though the dullness present may be the effect of solution." 

 (Whitfield.) 



Remarks. — This species is known from a single specimen less- 

 than 5 mm. in height, which is possibly an immature shell. 



Formation and localif% — ^Woodbury clay, near Haddonfield 



(183). 



Geographic distribution. — New Jersey. 



Soper-family PTENOGLOSSA. 

 Family SOALIDAE. 



Genus Scai^a Humphrey. 



Scala sillmani (Morton). 



Plate LXXVL, Figs. 2-3. 



1834. Scalaria Sillmani Mort., Synop. Org. Rem. Cret. Gr. U- 



S., p. 47, P'l- I3> fig- 9- 



