p. 1

Strophomena recta Conrad

Leptoena recta, Conrad, Proc.
Acad. Nat. Sc. Vol 1 p 332. Hall - Pal. N.Y.
Vol 1 p 113 pl 31, B. fig 6.

Semi=oval, nearly semicircular, compressed;
cardinal line very straight, except beyond the
width of the shell, and angulated at the extremities,
area narrow, equally common to both
halves ; ventral valve scarcely convex;
with a slight mesial depression; dorsal
valve flat, elevated towards the beak;
surface marked by strong bifurcating
crenulated striae. Remarkable for the
nearly equal areas, and the almost entire
flatness of both valves; in its angulated &
extended cardinal extremities it resembles
L. plano convexa, but in that shell is much
longer in proportion to the width, and the
striae are less sharply crenulated.

L. 0.55 H 0.3