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

Conrad, T.A. 1836. Monography of the Family Unionidae, or naiades of Lamarck, (fresh water bivalve shells) or North America, illustrated by figures drawn on stone from nature 1(4): 33-40, pls. 16-20.
Availably electronically? yes.

Species Described
Unio crassus Conrad, 1836.
‘Say’ Conrad, 1836, Monogr. Fam. Unionidae: 34, pl. 16.
(mis-ID'd reference to Unio crassus Say, 1817)
= Lampsilis abrupta
Unio cyclops Conrad, 1836.
‘Raf.’ Conrad, 1836, Monogr. Fam. Unionidae: 35.
(error for Toxolasma cyclips Rafinesque, 1831)
= Lampsilis abrupta
Unio icterinus Conrad, 1834.
Conrad, 1834, New Fresh-Water Shells: 41, pl. 6, fig. 5.
Conrad, 1836, Monogr. Fam. Unionidae: 39, pl. 18, fig. 2.
Conrad, 1853, Proc. Acad. Nat. Sci.: 250.
Type(s): HOLOTYPE ANSP_41381, muddy shore, Savannah River, opposite Augusta [Richmond Co.], Georgia.
= Elliptio icterina
Unio mytiloides Deshayes, 1830.
‘Rafinesque’ Of Authors.
Deshayes, 1830, Enc. Méth.: 586, pl. 249, fig. 4.
Conrad, 1836, Monogr. Fam. Unionidae: 41, pl. 20.
(mis-ID'd reference to Pleurobema mytiloides Rafinesque, 1820)
= Pleurobema rubrum
Unio suborbiculatus Conrad, 1836.
‘Hildreth’ Of Authors.
Conrad, 1836, Monogr. Fam. Unionidae: 35.
Mörch, 1853, Cat. Conch. Yoldi: 46.
(error for Unio orbiculatus Hildreth, 1828)
= Obovaria subrotunda
Unio viridis Conrad, 1835.
‘Rafinesque’ Conrad, 1835, New Fresh-Water Shells, Appendix: 4, pl. 9, fig. 1.
‘Rafinesque’ Conrad, 1836, Monogr. Fam. Unionidae: 35, pl. 17, fig. 1.
(mis-ID'd reference to Unio viridis Rafinesque, 1820)
= Lasmigona subviridis
Taxonomic Opinions
Unio cariosus Say, 1817. — Conrad (1836: 40).
Unio crassus Say, 1817. — Conrad (1836: 34).
Unio icterinus Conrad, 1834. — Conrad (1836: 39).
Unio nasutus Say, 1817. — Conrad (1836: 38).
Unio ochraceus Say, 1817. — Conrad (1836: 37).
Unio viridis Rafinesque, 1820. — Conrad (1836: 35).
NSF icon MUSSEL icon
"Making the world a better place, one mollusk at a time."