MUSSELp
 
MUSSELpdb
  Introduction
Browse
d'basing
 
Taxonomy
  all genera
Unionidae
Margaritiferidae
Hyriidae
Etheriidae
Mycetopodidae
Iridinidae

Species & Genus Richness by Taxonomy
 
Geography
  Summary
North America
Central America
South America
Afrotropics
North Eurasia
East Asia
Australasia

Species Richness & Endemism by Geography
 
 

Page last updated
Thu 3 September 2025

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 custom Google search field. Either way, you win!

Search the database pages:

Publication Simpson (1896): summary
     publication summary

Complete Citation

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. Available electronically.

Attributed Nominal Genera

Lepidodesma Simpson, 1896
Simpson, 1896. Proc. U.S. Nat. Mus. 18: 311.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 586.
Simpson, 1914. Descr. Cat. Naiades: 237.
Type species: Unio languilati Heude, 1874 (sub. desig. by Simpson, 1900: 586) = Lepidodesma languilati

Attributed Nominal Species

Anodonta yukonensis Simpson, 1896
‘Lea’ Simpson, 1896. Proc. U.S. Nat. Mus. 18: 328.
(error for Anodonta youkanensis Lea, 1867)

Unio mitchelli Dall, 1895
Simpson in Dall, 1895. Proc. U.S. Nat. Mus. 18: 5.
Simpson, 1896. Proc. U.S. Nat. Mus. 18: 371, pl. 32, figs. 1-3.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 711.
Simpson, 1914. Descr. Cat. Naiades: 622.
Type(s): LECTOTYPE [AS HOLOTYPE] USNM_128364 (by R.I. Johnson, 1975: 15), Guadalupe R., Victoria Co., Texas.

Taxonomic Opinions

Lepidodesma aligerus (Heude) = Lepidodesma aligera

Lepidodesma languilati (Heude)
 
NSF icon MUSSEL icon
"Making the world a better place, one mollusk at a time."