THE NAUTILUS. 57 



spiraliter torta, basi antice truncatula. Peristoma obtusum, medio 

 antice flexuoso-productum, basi recedens. 



Long. 8|, lat. 3, alt. apert. 4 mill. 



Hab. in America centrali (?). 



A small elongate shell, quite unlike any other I am acquainted 

 with and resembling a Ferussacia. I am indebted for a specimen to 

 Mr. Ph. Dautzenberg, who procured two examples in a lot of loose 

 miscellaneous shells from various localities. 



A PARTIAL LIST OF THE MARINE MOLLUSKS OF SAN SALVADOR, 



BAHAMAS. 



BY FRANK COLLINS BAKER. 



The following partial list of San Salvador shells is based on a col- 

 lection exhibited at the World's Columbian Exposition, and now in 

 the Field Columbian Museum, by whom it was referred to the 

 writer for identification. 



San Salvador, or Watling Island, is one of the Bahama Islands, 

 and lies just north of the Tropic of Cancer. Its molluscan fauna is 

 like that of the West Indies and Florida. The specimens are mostly 

 beach shells. 



Area barbata Linne. Cerithium literatum Born. 



Lucina dentata Wood. Trivia pediculus Linne. 



Lucina pennsylvanica Linne. Trivia qtiadripunctata Gray. 



SubemarginulaoctoradiataGmelin. Lambidium oniscus Linne. 

 Acmaea punctulata Gmelin. Tritonium chlorostomum Lam- 



Fissurella barbadensis Gmelin. arck. 



Fissurella fascicularis Lamarck. Pyramidalla dolabrata Linne. 

 Nerita tessellata Gmelin. Columbella ovulata Lamarck. 



Nerita versicolor Lamarck. Columbella mercatoria Lamarck. 



Nerita peloronta Linne. Olivella nivea Gmelin. 



Neritina pupa Linne. Conus mus Hwass. 



Hipponyx antiquatus Linne. Conus verrucosus Hwass. 



Polinices lactea Guilding Bulla occidentalis A. Adams. 



Natica canrena Lamarck. Melampus flavus Gmelin. 



Tectarius muricatus Linne. Cerion sp. 



