23 



1052 (Symphynota) IcBvissima, Lea, Western Rivers. 



" unio lcEvisshna,T)efih., 



1053 " bi-alata, Lea, East Indies. 

 " U?iio bi-alata, T)esh, 



1054 '• alata, Lea, Ohio. 



" Unio alalus, Say, 

 '* " alata, Lam., 



