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



Plate 24. 



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

 Fig. 2. AMMODISCUS CHAROIDF.S Jones & Parker. See page 279. 

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



a. Detached Specimen showing adherent face. 



Fig. 4. HORMOSINA GL03ULIFERA Brady. See Page 280. 



a. Longitudinal Sectirr. 



