GASTEROPODA OF THE EOCENE MARLS. 193 
tions probably five or more; only three and a half are preserved in the most 
perfect specimen; aperture round, moderately large; principal varices 
aligned on the different volutions, and showing distinct evidences of the 
expanded periodic lips; intermediate varices one only in each space, much 
less conspicuous than the others; beak and canal not preserved beyond the 
base of the last volution, but at that point showing evidence of having been 
moderately strong; surface covered with elevated spiral lines which have 
been rounded and gradually increasing in strength and distance from each 
other from the upper margin of the volution to near its base, or as far as 
they can be distinguished on this part of the cast. 
This is the only species of this genus of shells detected in the Kocene 
Marls of the State, so far as I am aware. It is a well marked species of 
Triton when closely and understandingly examined, but still not easily dis- 
tinguished on cursory examination from some of the forms of Fusus and 
Fasciolaria present in the marls with it.. 
Formation and locality: In the upper beds of the Upper Green Mars at 
Shark River, New Jersey, and in the collection at Rutgers College. 
PURPURID. 
Genus PSEUDOLIVA Swainson. 
PSEUDOLIVA VETUSTA ?. 
PLATE XXIV, Fig. 20. 
Mo noceras vetusta Conrad: Foss. Shells Tert., p. 44, 2d ed. p. 37, Pl. xv, Fig. 3. 
Monoceras pyruloides and M. fusiformis Lea: Cont. to Geol., p. 161 and 167, Pl. 
5, Figs. 166 and 167. 
9 Buccinorbis vetusta Conrad: Am. Jour. Conch., vol. 1, p. 22; Meek, Check List 
Eocene Foss., p. 17. 
Pseudoliva (Buccinorbis) vetusta (Con.) Meek, Check List Eocene Foss., p. 17. 
Internal casts of a species of Pseudoliva, apparently of the above species, 
so far as general form and character of -a ‘cast can determine, occurs in the 
Eocene green sands at Shark River. The specimens are of about the size 
of adult individuals from Claiborne, but appear from the general condition 
of preservation to have been a worn specimen when imbedded, and so poorly 
MON xVHI——13 
