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



PLATE 24. 



FIG. 1. AMMODISCUS GORDIALIS JONES & PARKER. SLE 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. 



