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.



Bivalvia | Unionoida | Unionidae

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.

Theliderma Swainson, 1840: generic synonymy
  View species list: 5 species

Theliderma Swainson, 1840.
Swainson, 1840, Treat. Malacol.: 267-273, 275-276, 289-290, 378.
(intro'd as sub-gen. of Unio Retzius, 1788; renamed Thelyderma Agassiz, 1846)
Type species: Obliquaria (Quadrula) metanevra Rafinesque, 1820 (sub. desig. by Gray, 1847: 196) = Theliderma metanevra.

Thelyderma Agassiz, 1846.
Agassiz, 1846, Nomencl. Zool. Index Univ.: 368.
(new name for Theliderma Swainson, 1840)

Orthonymus Agassiz, 1852.
Agassiz, 1852, Arch. Naturg.: 48.
Type species: Unio cylindricus Say, 1817 (orig. desig.) = Theliderma cylindrica.

Telederma Lea, 1852.
‘Swainson’ Of Authors.
Lea, 1852, Synopsis Fam. Naiades: 22.
Reeve, 1864, Conch. Icon.: pl. 7,sp. 25.
Lea, 1870, Synopsis Fam. Naiades: 33.
Paetel, 1875, Fam. Gatt. Moll.: 203.
(error for Theliderma Swainson, 1840)

NSF icon MUSSEL icon
"Making the world a better place, one mollusk at a time."