Pliocene Mollusca from Louisiana 



135 



THREE NEW BRACKISH-WATER PLIOCENE MOLLUSCA 

 FROM LOUISIANA. 



Ernest Rice Smith, DePauw University. 



In a paper published in the Proceedings of the United States 

 National Museum, Vol. 46, pp. 225-237, W. H. Dall listed a considerable 

 brackish-water Pliocene fauna, including many new species from the 

 Atlantic and Gulf Coastal Plains of the United States. Outcrops of 

 this horizcn are found at intervals from the Satilla River, Georgia, to 

 Newton County, Texas. One locality, which yielded him a very con- 

 siderable fauna, was the Frank Muse Place, six or eight miles south- 

 west of Alexandria, Louisiana. 



Figs. 1, 2. and ">. Muliiiia Iiani>ti n. 

 P. olffsmri n. sp. 



4, Paludrstiiiia dalli n. 



fig. 



In 1916, Professor G. D. Harris of Cornell University, made a 

 small collection in a well, about thirty feet below the surface, on the 

 Hunting Club grounds ten miles southwest of Alexandria. This material, 

 washed and sorted, furnished twenty-one molluscan species, seven being 

 Pelecypods and fourteen Gasteropods. The elements, believed to be 

 new, consist of the three species here describd as new and an imperfect- 

 ly preserved Gasteropod, kindly examined by Mr. Dall who determined 

 it as probably a Melaruphe Miihlfeldt. I wish to express my appre- 

 ciation to Professor Harris for the opportunity to study this material 

 and to Mr. Dall for his examination of the material believed by me 

 to be undescribed. 



Mulinia haryisi n. sp. Figs. 1, 2, 3. 



This species resembles Mulinia sapotilla Dall and was confused 

 with that species, because of inadequate material, in the paper mentioned 

 above. It may be separated from that species by its deeper and better 



"Proc. 38th Meeting, 1922 (1923)." 



