348 



CRETACEOUS LAMELLIBRANCHIA. 



105 -i 



109 



Figs. 98-109. — Ostrea diluviana, L98, 99. Claxby Ironstone, Goulsby. Bristol Museum. Left valve and 

 anterior view. 100-102, Lower Greensand, Atherfield. Museum of Practical Geology, Nos. 25802, 25790, 

 25795. Right valves and anterior view. 103, Crackers, Atherfield. Same museum, No. 25793. Eight 

 valve. 10i, 105, Lower Greensand, Up ware. Sedgwick Museum. Interior and exterior of a left 

 valve. 106-108, Lower Greensand, Faringdon. 106, 107, Bristol Museum. Left valve. 108, Mr. 

 Treacher's Collection. Right valve. 109, Ferruginous Sands, Shanklin. Sedgwick Museum. Right 

 valve. All x •?. 



