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



Plate 41. 





FlG. 1. BILOCULINA L/EVIS DEFRANCE. See Page 295. 



Fig. 2. BILOCULINA SPH/tRA d'Obrigny. see page 295. 



a. Section. 



Fig. 3. BILOCULINA IRREGULARIS d'Orbigny. See Page 295. 

 Fig. 4. SPIROLOCULINA NITIDA d'Orbigny. see page 296. 

 Fig. 5. SPIROLOCULINA EXCAVATA d'Orbigny. See page 296. 



