Report of U. S. National Museum, 1897. — Flint. 



Plate 27. 



Fig. 1. TROCHAMMINA RINGENS Brady. See Page 231. 



Fig. 2. TROCHAMMINA PAUCILOCULATA Brady. See Pace 282. 



Fig. 3. CYCLAMMINA CANCELLATA Brady. See Page 282. 



a. Section. 



