GASTEROPODA OF THE EOCENE MARLS. 209 
tive feature. Specimens indicating a length of 6 inches above the beak 
and canal are not uncommon, the diameter, in such cases, being nearly 34 
inches. 
Formation and locality: In the upper layers of the Upper Green Marls, 
at Shark River, Farmingdale, and Monmouth, New Jersey. Collection at 
Rutgers College and Am. Mus. Nat. Hist. 
TURBINID ZK. 
Genus CARICELLA Conrad. 
CARICELLA PYRULOIDES. 
Plate xxix, Figs. 1-6. 
Turbinella pyruloides Conrad: Foss. Shells of Ter., p. 24; Pl. x, Fig. 1. 
Caricella pyruloides Conrad: Am. Jour. Conch., vol. 1, p. 24; Meek, Check List 
Kocene Foss., p. 16. 
Shell of medium size, pyriform, swollen or inflated above and attenuate 
below, with a short obtuse spire. Volutions four or more, very rapidly 
increasing in size, the last one forming almost the entire bulk of the shell, 
as the inner ones are almost enveloped by the outer. Aperture very large, 
semi-lunate, but prolonged and pointed below. Columella slender, especi- 
ally in the lower part, somewhat bent and’ marked by three or four strong 
plications or ridges. Surface as shown on the casts, marked by lines of 
growth parallel to the margin of the aperture. 
The casts of this species are not uncommon and attain a very fair size as 
compared with the shells as found in Claiborne sands at Claiborne, Alabama, 
from whence it was originally described and where it is quite abundant. The 
New Jersey specimens are usually much compressed or distorted, and the 
columellar folds not often seen, as they show only as grooves in the marl 
against the side of the cast of the columella, or are obtained by breaking 
away a portion of the volution. There are seldom more than three of them 
visible, and often only two can be detected, which, together with the absence 
of the raised spiral strize of the lower slender part of the volution on the 
Alabama specimens, may induce some to consider them as distinct species. 
I think, however, these slight differences are only the result of the conditions 
