214 AMERICAN JOURNAL 



AVICULA, Klein. 



A. ANNOSA, Conr.— PI. 20, fig. 16. 



An imperfect cast; very different, however, in shape from 

 other Eocene species. 



Locality. — Shark River, N. J. 



The Shark River species are all casts in a coarse-grained, 

 hard, green sand, and I have selected a few only of many spe- 

 cies, as sufficiently striking in form or character to distinguish 

 them from other shells. 



