INOCERAMUS. 



321 



i 





Fio. 79. — Inoccramus Lamorchi var. Cuvieri, Sow. Zone of Holnster planus. Borstal. Jlr. Dibley's Collec- 

 tion. Ei^ht valve and anterior view, x 5. 9 



Firi. SO. — Iiioeeramas Lamareki var. Cuvieri, Sow. Zone of Terehratnlinn /<i/ii.Royston. SeJ>jwiek Mu.seuni, 

 Cambridfje. Portion of left liinfje. Natuml size. 



