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



PLATE 77. 



Fig. 1. TRUNCATULINA WUELLERSTORFI Schwager. See Page 333. 

 Fig. 2. TRUNCATULINA UNGERIANA d-Orbigny. See Page 333. 

 Fig. 3. TRUNCATULINA ROBERTSONIANA Brady. See Page 333. 

 Fig. 4. TRUNCATULINA TENERA Brady, see page 334. 

 Fig. 5. TRUNCATULINA AKNERIANA D'Orbigny. See page*333. 



a. Horizontal Section. 

 FiG. 6. TRUNCATULINA PYGM/EA Hantken. See Page 334. 



