•364 PROCEEDINGS OF THE ACADEMY OF [1880. 



ON SOME NEW LOWER EOCENE MOLLUSCA FROM CLARKE CO. ALABAMA, 



WITH SOME POINTS AS TO THE STRilTIGRAPHICAL POSITION 



OF THE BEDS CONTAINING THEM. 



BY ANGELO HEILPRIN. 



The following species of fossil mollusca, for which I am indebted 

 to Dr. Eugene A. Smith. State Geologist of Alabama, were ob- 

 tained from sections exposed in that State on Knight's Branch 

 and Cave Branch, tributaries of Bashia Creek (Clarke Co.), and 

 from Wood's Bluff on the Tombigbee River, near the mouth of 

 Bashia Creek, and some twenty-eight miles north of St. Stephen's. 

 They occur in probably the oldest marine tertiary deposits of the 

 State, and occupy a horizon nearly parallel with that which is 

 characterized by the fossils of Upper Marlborough and Piscata- 

 w^ay River, Marjdand, and Pamunkey RiA'er, Virginia. The follow- 

 ing enumeration of fossils from the three localities first named, 

 will best illustrate the pala^ontological relations of the beds 

 containing them toward each other, and to the various Eocene 

 deposits of the Atlantic and Gulf slopes : 



Fossils from Knight's Branch. 



Astarte tellinoides, Conr. ( Va?'. A. sulcata, Lea.) 



Cytherea, perovata, Conr. 



Cytherea NnttaUiopsis, Heilpr. sp nov. 



?• Cardita alticoda {Blandinyi)^ Conr. 



Gorbula rugosa, Lam. 



(C. oniscus, Conr; va?: C. gihbosa^ Lea.) 

 Ancillaria (Ancillopsis) subglobosa, Conr. 

 Natica settles, Conr. 

 TurbineMa {Ga^Hcella) Bandoni, Deshayes, sp. 



{Valuta Bandoni, Desh.) 

 Lsevibuccinum lineafum, Heilpr. sp. nov. 

 Rostellaria (Calyptrophorus) trinodifera, Conr. 

 Solarium cupjola, Heilpr. sp. nov. 

 Fusus inter striaius, Heilpr. sp. nov. 

 Fusus sub-tennis, Heilpr. sp. nov. 

 Fusus (Strepsidura) subscalarinus, Heilpr. sp. nov. 

 Tornatella {TornatelWa) bella, Conr. 

 Ostrea. 

 Cylicosmilia. i 



