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



PLATE 54. 



FIG. 1. LAGENA STAPHYLLEARIA SCHWAGER. SEE PAGE 307. 



FIG. 2. LAGENA MARGINATA WALKER & BOYS. SEE PAGE 307. 



FIG. 3. LAGENA CASTANEA NEW SPECIES. SEE PAGE 307. 



FIG. 4. LAGENA ORBIGNYANA SEGUENZA. SEE PAGE aos. 



FIG. 5. LAGENA CASTRENSIS SCHWAGER. SEE PAGE sos. 



FIG. 6. NODOSARIA ROTUNDATA REUSS. SEE PAGE 308. 



