_Pinna_, probably nov. sp. | _Corbula_ sp. | **_Inoceramus cripsi_. | **_Natica_ sp. | _Ostrea_ sp. | _Tylostoma syriaca_. | _Exogyra flabellata_. | _Turritella_ nov. sp. aff. _nodosa_. | _E. olisiponensis_. | **_Turritella_ sp. | _E. mermeti_. | _Cerithium_ sp. | _Plicatula Reynesi_. | _Pterodonta_ aff. _inflata_. | _Spondylus_ (?) | _Murex_. | _Modiola_ sp. | **_Fusus_ sp. | _Cardium_ sp. | **_Drillia pleurotomoides_. | _Isocardia_ sp. | _Nautilus Munieri_. **_Pachydiscus peramplus_. _Neolobites vibrayeanus_. [Footnote **: Indicative of a somewhat later age than Cenomanian.] The above fauna taken as a whole has a decided Cenomanian aspect, although some of the forms (marked **) are indicative of a somewhat later age, i.e., Turonian and Senonian. As the next bed above is the Danian White Chalk, it is probable that some of the upper beds of this series form a transitional stage between the Cenomanian and Danian. The presence of the bone-bed, as already mentioned probably of the same age as the Dakhla and Eastern Desert bone-beds, i.e., Campanian, supports this view. In any case, however, the great thickness of beds, of Senonian-Danian age, of the southern oases of Dakhla and Kharga, including the bone-beds, the _Exogyra Overwegi_ series and the ash-gray shales, is here apparently only represented by a few metres of deposits. DANIAN.