EXPLICATION DE LA PLANCHE XI 



Fig. i. — Psiloceras longipontinum Oppkl. 



2. — Turritella rhodana Martin. 



3. — Chemnitzia Polita Martin. Gr. 2,0/1. 

 \ . — Cerithium Dumortieri Martin . 



5a, ô7>, 5e, 5rf. — Acteon sinemuriensis Martin. Gr. 2,0/1 . 



6. — Pecten sp. 



■ja. jb. — Monotis substriata Zieten. 



s. — Gervillia cf. Lanceolata Sowerby. 



9. — Nucula oviim Sow. 



10. — Nucula subovalis Gold. 



11. — A starte subcarinata Munster. 



12. — Astarte Voltzii Gold. 



i3. — Tancredia marcignyana Martin. 

 i\. — Protocardium Philîppianum Dunk. 

 i5. — Goniomya sp. 



Bull. Soc. géol. de Fr. 4), VIII, 1908. 



