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



PLATE 33. 



FIG. 1. GAUDRYINA SUBROTUNDATA SCHWAGER. SEE PAGE 287. 

 FIG. 2. GAUDRYINA FILIFORMIS BERTHELIN. SEE PAGE 287. 



FIG. 3. GAUDRYINA RUGOSA D'ORBIGNY. SEE PAGE 288. 

 a. Longitudinal Section. 



