72 PLEIOCENEFO.SSILS. 



AST ARTE LUNULATA. — Con. 



Plate XX. Fig. 4. 



Astarte lunulata, Con., Foss. Ter. For., p. 44, pi. 21, fig. 8. 



A. testa parva, depressa, sub-trigona, concentrice sulcata; latere buccali truncato; latere 

 anali sub-angulato. 



Description. Shell small, flat, somewhat angular, concentrically furrowed; buccal 

 margin truncated; anal margin somewhat angular. 



This little species is at once known by the regular and angular furrows; straight sides, 

 and prominently arched pallial margin, which is within smooth. 



It occurs living on the coast of South-Carolina and in the Gulf of Mexico. 



Plate XX. Fig. 4, Natural size. 



Locality. Darlington District. 



Museum, College of Charleston. 



The genus Astarte is found living in the seas of cold regions, and existed in great 

 numbers in the Liassic seas. 



