44 PALEONTOLOGY OF NEW JERSEY. 
ARCA (SCAPHARCA) LIENOSA?, 
Plate v1, figs. 10 and 10a. 
Area lienosa Say: Am. Conchology, Pl. 36; Tuomey and Holmes, Plioc. Foss. S. Car., 
p. 41, Pl. xv, Figs. 2 and 3; Emmons’s Geol. N. Car.,.1852, p. 284, Fig. 204; 
? Heilprin, Proc. Acad. Nat. Sci. Phil., 1887, pp. 400 and 402. 
Scapharea lienosa (Say) Conrad: Proc. Acad. Nat. Sci. Phil., 1862, p. 579; Meek 
Check List Mioc. Foss., p. 6. 
“Shell rather thin, transversely oblong; ribs about 40, somewhat flat- 
tened and much broader than the intervening spaces which are very nar- 
row, and with a longitudinal impressed line, particularly on those of the 
posterior margin, which are almost bifid; and with numerous slightly ele- 
vated transverse lines, which being divided by the longitudinal strize appear 
granulated; beak but little prominent, and nearly opposite to the posterior 
third of the length of the hinge margin; avea narrow and elongated; hinge 
margin rectilinear, angulated at each extremity; teeth numerous, small; 
posterior margin obliquely rounded inwards, no part of it extending further 
backwards than the angle; anterior margin obliquely truncate; imner margin 
crenate.” (Say in Am. Conch.) 
This species also comes represented by several fragments, which are 
somewhat questionable in character, and may possibly not have belonged 
to the species above cited. The fragments are all quite small, and although 
- they represent different parts of the margin of the shell, they are too indefi- 
nite to be relied upon as conclusive. 
The specimens are from the well boring at Atlantic City, N. J., col- 
lected by Mr. L. Woolman, and are from the cabinet of the Academy of 
Natural Sciences at Philadelphia. 
