p. 2

Streptelasma corniculum, Hall. Pal. of N.Y. vol. 1 p 69 pl 25 fig 1.

Turbinate, curved near the base, which terminates in an acute point, somewhat rapidly expanding above; cup profound; lamelloe about sixty; surface marked by strong longitudianal lines indicating the lamellae, which are crossed by fine concentric wrinkled lines.

L 0.75 to 1.5