Report of U. S. National Museum, 1897 



PLATE 77. 



Fig. 1. TRUNCATULINA WUELLERSTORFl SCHWAGER. See page 333. 



F.G. 2. TRUNCATULINA UNGERIANA D'Orbigny. See Page 333. 



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



Fig. 4. TRUNCATULINA TENERA Brady. See page 334. 



Fig. 5. TRUNCATULINA AKNERIANA D'Orbigny. See Page" 333. 



,(. Horizontal Section 



Fig. 6. TRUNCATULINA PYGM/EA HANTKEN. See Page 334. 



