4. CORBICULA ROTUNDA, Prime. 



Smithson. Monogr. 

 Surinam river. 



5. CORBICULA PARANENSIS, Deshayes. 



Smithson. Monogr. 

 Parana river. 



6. CORBICULA OBSOLETA, Deshayes. 



Ann. N. Y. Lyceum IX. 



a. Uruguay. (Ex auctore.) 



b. Corbicula Amazonica, Anthony, The Amazon. (Ex 



auctore.) 



China. 



/ 



7. CORBICULA LARGILLIERTI, Deshayes. 



Ann. N. Y. Lyceum VIII. 



a. Yang-tse-Kiang river. (From the Largilliert collection, 



from which Philippi described the species.) 



b. Corbicula sulcatina, Deshayes. China. (Ex auctore.) 



