SECT LON iit 
CRETACEOUS GASTEROPODA FROM THE BASE OF THE UPPER MARL 
BEDS OF NEW JERSEY. 
TURBINELLID. 
Genus CARICELLA Conrad. 
CARICELLA PLICATA, 0. Sp. 
Plate xxl, Figs. 1, 2. 
Shell small, turbinate or pyriform, with a short, broadly conical spire 
having an apical angle of about 85°. Volutions four or more, not exceeding 
five, the apical one mammillated; upper surface sloping in the direction of 
the spire, slightly angulated at the point of greatest diameter and the lower 
extremity slightly attenuated; body of the volution ventricose; aperture 
large, nearly three-fourths the length of the shell, oblique and somewhat 
elliptical in general form, canaliculate below. Columella slight, as shown by 
the cavity left by its removal, marked by four very distinct, oblique, equi- 
distant folds, the upper one of which is situated nearly at the middle of the 
length of the aperture. Body volution marked in the cast by about twelve 
very oblique vertical folds, which are directed very strongly forward in pass- 
ing from above downward, but are confined entirely to the region of the 
angle near the top of the volution. No positive evidence of other surface 
markings can be detected on the casts. 
This shell differs from most of the species of the genus as they occur 
in the Eocene formations in having vertical folds marking the largest part 
of the body volution. In shape and in the folds of the columella and their 
relative position it agrees perfectly well with the characters of Caricella; in 
the vertical folds it resembles Voluta. In size and general form and in the 
vertical folds the specimens are very like Conrad’s figure of Pseudoliva 
tuberculifera (Jour. Acad. Nat. Sci., Phila., 2d series, vol. 4, p. 294, Pl. 47, 
182 
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