156 PALEONTOLOGY OF NEW JERSEY. 



label found with this one indicated no locality, but from the character of 

 material it would appear to have come from Mullica Hill, New Jersey, and 

 consequently would pertain to the Lower Marl Bed. 



Action Gabbana, n. sp. 

 Plate XIX, Figs. 23-25. 



ActcEonina bipUeata (M. & H.) Gabb : Proc. Acad. Nat. Sci., Phila., 1860, p. 93, 



•Pl. II, Fig. 13. 

 SoUdula hiplicata (M. & H. sp.) Gabb: Synopsis, p. 38. 

 Solidula hiplicata (Gabb) Meek, Olieck List Cret. and Jur. Foss., p. 17; Geol. N. 



J., Newark, 1868, p. 728. 

 Actceon hiplicata (Gabb sp.) Meek: U. S. Geol. Surv. Terr., vol. 9, Invert Pal., pp. 



281, 282. 



Shell of medium size, elongate ovate or subcylindrical in outline, spire 

 moderately elevated, entire length and number of volutions unknown. 

 Body volution cylindrical in the upper half, obtusely rounded below. Ap- 

 erture narrow, pointed and very contracted above and rounded below, about 

 four-fifths as long as the length of the body volution, measured on the same 

 side. Columella slightly twisted below and marked by a single tooth near 

 the base, as determined by the groove showing on the cast. Surface of the 

 shell marked by fine spiral lines, the number undeterminable from the speci- 

 mens examined. 



The species is known only from two individual casts, both of which 

 appear to have been used by Mr. Gabb in his original investigations. I 

 can not, however, ascertain the existence of more than a single tooth on 

 the columella from the specimens, as they show only a single groove left 

 by the removal of the substance of the shell. The specimens are also both 

 imperfect in the upper part of the spire, so that the entire height is not 

 ascertainable. The shell is, however, so distinct in its proportion from any 

 other from the New Jersey formations, that there is no chance of confound- 

 ing it with them. There appears to have been some confusion in the author's 

 mind in regard to the specific relations of this shell, when the name 

 Adonina hiplicata was applied; and also subsequently, as he refers it to a 

 species described by Meek and Hayden from Nebraska. These latter 



