FIG. 78.- Pyrgulifera and Paramelania. 

 1 and 2. Pyrgulifera humerosa, Meek, found fossil in the Bear 



River Beds, Laramie, North America. After C. A. White. 

 3 and 4. Lavigeria coronata, Bourg., or Paramelania Damoni, 



E. Smith, from Lake Tanganyika. After Bourguignat. 

 5 and G. Paramelama Damoni, E. Smith. After J. E. S. Moore. 



