186 



Ammonites Humphresiatws Sow. 



Brocchii Sow. 



Braikenridgii Sow. 



Gasteropoda. 



Chemnitzia Scemanni Oppel. 

 Pleurotomaria Jasciata Sow. 



elongata Sow. 



Turbo lavigata. 



Conchifera. 



Ostrea flabelloides Lamk. 

 Uinnites tuberculosus Goldf. 

 Lima proboscidea Sow. 



EtheridgiiWr. 



no v. spec. ? 



Trichites undulatus Lye. 

 Astarte excavata Sow. 

 Mytilus explanatus Mor. 

 Pholodomya Heraultii Ag. 

 Homomya crassiuscula Lye. 

 Myoconcha crassa Sow. 

 Pteroperna plana. 

 Trigonia costata Sow. 



striata Sow. 



Brachiopoda. 

 Rhynchonella subtetrahedra. 



No. 3. The Ostrea-bed, consists of a coare brown ferruginous 

 sandy marl, interstratified with inconstant layers of ragstone. 

 The fossils are most abundant in the sand. This bed is about 

 one yard in thickness, and contains, 



Conchifera. 



Ostrea flabelloides Lamk. 

 var. a. 

 var. b. 

 var. c. 



pixiformis VVr. n. sp, 



Pecten demissus Goldf. 



Lima proboscidea Sow. 



Etheridgii\Vr. 



Gresslya abducta Phil ? 

 Pleuromya tenuistriata Ag. 

 Pholodomya Heraultii Ag. 



ovulum Ag. 



media Ag. 



Davalqui Lye. 



Monotis tenuistriata VVr. n. sp. 



