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



PLATE 16. 



FIG. 1. REOPHAX DIFFLUGIFORMIS BRADY, VAR. TESTACEA, NEW. SEE PAGE 273. 



a. Longitudinal Section. 

 FIG. 2. REOPHAX DIFFLUGIFORMIS~BRADY. SEE PAGE 272. 



FIG. 3. REOPHAX SOORPIURUS MONTFORT. SEE PAGE 273. 



