Page last updated
9 August

Click here to read the database disclaimer.

The Freshwater Mussels (Unionoida) of the World
(and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the search fields. Either way, you win!

Taxa known only as fossils are highlighted in gray. Those without representatives in fresh waters are highlighted in gold.




NOTICE! This version of the MUSSELpdb online is no longer supported or up-to-date. It will be removed from this web site in the summer of 2019.

Click here to view these data in the current, updated version. Or, click here to browse from the starting page.

Publication Information

Simpson, C.T. 1896. The classification and geographical distribution of the pearly fresh-water mussels. Proceedings of the United States National Museum 18: 295-343.
Availably electronically? yes.

Species Described
Unio mitchelli Dall, 1896.
Simpson in Dall, 1896, Proc. U.S. Nat. Mus.: 5.
Simpson, 1896, Proc. U.S. Nat. Mus.: 371, pl. 32, figs. 1-3.
Simpson, 1900, Proc. U.S. Nat. Mus.: 711.
Simpson, 1914, Descr. Cat. Naiades: 622.
Type(s): LECTOTYPE USNM_128364 (selected by R.I. Johnson, 1975), Guadalupe R., Victoria Co., Texas.
= Fusconaia mitchelli
Taxonomic Opinions
Lepidodesma aligerus (Heude). — Simpson (1896: 311).
Lepidodesma languilati (Heude). — Simpson (1896: 311).
NSF icon MUSSEL icon
"Making the world a better place, one mollusk at a time."