330 



CRETACEOUS LAMELLIBRANCHIA. 



? * 





':«* 



Fl,i - 90 -- Inocer * s i^oJ u f„ Sj Sow Upper Chali, probably Kent. British Museum, No. L4917 Posterior 



view. Umbonal part of left valve missing. Natural size. ^cenor 



Fig. 91. — Anterior view of specimen shown in Fig. 90. Natural size. 



