Explanation of Plate XXV. 



Fasciolaria, sp. (Mus. No. P 5941.) 



Fig. 1. Cast of a small specimen. 

 Fig. 3. Cast of a larger specimen. 



Fusus, sp. (Mus. No. P 5942.) 



Fig. 2. Cast of small specimen. 

 Fig. 5. Cast of type specimen. 

 Figs. 4 and 6. Views of an indeterminable Gastropod. 



OSTREA BELOITI, ft. Sp. (Mus. No. P 5944.) 



Fig. 7. Interior view of left valve. 

 Fig. 8. Interior view of right valve. 



