PLATE YI. 



Fig. 



1. Pectunculus obliquus, Kpng., Up ware, a, 6, single valve; c, d, 



perfect specimen. 



2. Modiola pedernalis^ Komer, Upware. 2 h, enlarged f . 



3. Modiola ohesa, Kpng., Upware. 



4. Cardium Gottaldinum, d'Orb., Upware (in the cabinet of Mr J. F. 



Walker, M. A.), a, back view ; 6, anterior view ; c, interior. 



5. Cypricardia squamosa, Kpng., Upware. a, back view; J, interior; 



c, enlarged. 



6. Cypricardia arcadiformis, Kpng., Upware. 



7. Cardita rotundata, Pictet and Eoux, Upware. 



8. Opis Neocomiensis, d'Orb., Upware. a, back view; h. umbonal 



view ; c, anterior view. 



9. Astarte, sp. no v., Upware. h, interior (Coll. Mr J. F. W.). 



10. Astarte, sp., Upware. 



1 1 . Astarte suhdentata, Romer, Upware. 



12. Cyprina Sedgwickii, Walker, sp., Upware. c, hinge. 



13. Cyprina obtusa, Kpng., Upware. 



14. 1 Thraciay. sp., Upware. 



