CORBTECEU EA: 
America. 
1. CORBICULA LIMOSA, Deshayes. 
Smithson. Monogr. 
a. Rivers of Eastern Uruguay. 
b Cyclas variegata,d' Orbigny. Rivers of Eastern Uruguay. 
(Ex auctore, fide Cuming.) 
c.. Corbicula semisulcata, Deshayes. South America. (Ex 
auctore.) 
d. Corbicula perplexa, Prime. South America. 
2... CORBICULA CUNEATA, Jonas. ; 
Smithson. . Monogr. 
Orinocco river. (Ex auctore.) 
3... CORBICULA CONVEXA, Deshayes. 
Smithson., Monogr. 
Mazatlan. (Ex auctore.) 
