208 PALEONTOLOGY OF NEW JERSEY. 



VOLUTA PERELEVATA, n. sp. 



Plate XXX, Figs. 4-6. 



Imperfect and fragmentary specimens of a very slender volute are 

 found in the Shark River collections, but are all imperfect, both as to the 

 spire and base of the shell; but still enough is preserved to show that they 

 belong to a species which is entirely distinct from any of those hitherto de- 

 scribed from those beds, or from any of the Eocene layers in any other 

 section. The form of the shell is highly elevated and proportionally slen- 

 der, the spire being composed of volutions which are nearly straight on the 

 sides of the exposed portion, this part being unusually long as compared 

 with any of the known species. The last volution has been quite long, 

 largest near the shoulder and gradually narrowing downward to a narrow 

 base, so that the shell has been four or more times as long as wide; the 

 aperture is long and narrow and the columella strong, and marked by three 

 or more strong folds. The surface has been smooth with the exception of 

 transverse lines of growth, which are strong and somewhat regularly 

 arranged, but not sufficiently so to form a surface pattern. The species 

 wiU be easily distinguished from any of the others by its slender elongated 

 form. All the specimens observed are from the upper layer of the Upper 

 Green Marls at Shark River, New Jersey, and are in the collection at Rut- 

 gers College, and that of the Am. Mus. Nat. Hist. 



VOLUTA PAEVULA, n. Sp. 



Plate XXXI, Figs. 1-4 and 5 (?). 



Shell small, seldom exceeding 1^ inches in length, elongate-ovate or 

 elongate-suboval in general outline, consisting of four to four and a half 

 volutions in the cast, the last one forming fully three-fourths of the entire 

 length ; apex mammillated (?). Volutions of the spire low convex, not angu- 

 lated, but with distinct sutures. Body volution largest near the upper end, 

 abruptly rounded to the suture on the shoulder and gently convex below 

 or over the body portion, more rapidly constricted toward the lower part 

 and again becoming slightly patulose at the base. Aperture long and mod- 

 erately open, with a wide canal and notch at the base, so far as can be 



