42 



C. echinatum, Auct. 



In deep water ; not common. 



C- elongatum, Mont. 

 With the last ; rare. 



Genus Tellina, Auct. 

 T. Donacina, Auct. 



In deep water ; rare. 

 T, Fabula, Auct 



With the last ; rare. 

 T. tenuis, Auct. 



Genus Mactra, Auct. 



M. subtruncata, Alont. 



In deep water ; not common. 



Genus Amphidesma, Lam. 



A, Boysii, Turt. 



In deep water ; not uncommon. 



Genus Kellia, Turt. 



K. saborbicolaris, Turt. 



In cavities of old shells in deep water ; rare. 



Genus Thyatira, Leach. 



T. Uexoosa. 



T. fiexitosa, Mont. 



In deep water ; very rare. 



Genus Lucina, Lam. 



L. Eaduia, Lam. 



In deep water ; rare. 



