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



Plate 30 



FIG. 1. TEXTULARIA TROCHUS D'ORBIGNY. See Page 285. 



a. Longitudinal Section /r\(-l\C/1 / 



Fig. 2. TEXTULARIA BARRETTII Jones & Parker. See Page 28^ 



a. Longitudinal Section 



Lul Li BR A R Y 





X&&&& 



