Palaeontogr. Bd. XIII. Taf. 24. 



Taf. IV. 



""S^-" 1^^ 



Fig. 1. 2. Thracia Eimensis Braans. — Fig. 3. 4. 5. Pleuromya arcacea v. Seeb. — Fig. 6. 7. Ostrea snbmargaritacea Brauns. — 

 Fig. S. Ostrea tenuitesta Brauns. — Fig y. 10. Lucina elegantula Brauns. — Fig. II. 12. Tancredia dubia v. Seeb. 



