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30 

 NUCULA LIMATULA. 



Tab. VI, fig. 1. 



SPECIFIC CHARACTER. 



Shell ovate elongated, with central beaks ; anterior 

 side rostrated, and pellucid at the end; epidermis 

 olivaceous and polished. 



SYNOISIYME. 



NucuLA LIMATULA. Say, American Conch, pi. 12. 

 Cabinet of the Acad. Nat. Sciences, No. 1455. 



OBSERVATIONS. 



This beautiful species occurs more than two inches 

 in length; and is covered with a strong green olive 

 epidermis, with a faint ray on either side running 

 in an obsolete furrow. 



Perhaps no shell, known to inhabit our coast, has 

 been more rarely observed, until the winter of 1831, 

 when a violent snow storm in February cast them in 

 abundance alive on the beach near Newport, Rhode 

 Island. Col. Totten has presented me specimens of 

 different periods of growth, and these have enabled 

 me to identify this species with a shell which I have 

 found very common in a fossil state near Suffolk, and 

 in the banks of James and York rivers, in Virginia. 

 Perhaps the JV. Isevis of Say may prove to be this 

 shell, but it differs in form from my fossil specimens. 



