INOCEEAMUS. 



^P 



FlG 88.-Inoceramus involutes, Sow. Upper Chalk, locality unknown. The type. British Museum, 



432(58. Left valve. Natural size. 



No. 



Fia 89 -Inoceramus involutes, Sow. The original of the specimen figured £ DWb ^Geol S^ex/pl. 

 xxviii. fig. 32. Upper Chalk, Charing. Flint cast. British Museum, No. L83. Natural size. 



