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



Plate 24. 



Fig. 1. AMMODISCUS GORDIALIS Jones & Parker. -See page 279. 

 Fig. 2. AMMODISCUS CHAROIDES Jones & Parker. See Page 279- 

 Fig. 3. WEBBINA CLAVATA Jones & Parker. See Page 279. 



a. Detached Specimen showing adherent face. 



Fig. 4. HORMOSINA GLOBULIFERA Brady. See Page 280. 



a. Longitudinal Section. 



