| Page last updatedWed 1 October 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! 
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 Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini genus Ortmanniana Frierson, 1927: species1 available nominal genus synonym | cladomics
 |  Ortmanniana ligamentina (Lamarck, 1819) syonymy (19 available, 29 total) | specimens (11 + 3 Genbank vouchers)
 Range: Widespread in the Interior and Great Lakes basins, North America. (North America)
 Genbank sequences: 16S, 28S, 5.8S, COI, COI M-type, COII, COII M-type, ITS1, mtGenome, ND1, other
 IUCN Red List: Least Concern (Actinonaias ligamentina)
 NatureServe: G5
 other links:  MolluscaBase
 |  |  Ortmanniana pectorosa (Conrad, 1834) syonymy (4 available, 6 total) | specimens (2 + 2 Genbank vouchers)
 Range: Tennessee and Cumberland rivers, USA. (North America)
 Genbank sequences: 16S, 28S, 5.8S, COI, ITS1, ND1
 IUCN Red List: Lower Risk/near threatened (Actinonaias pectorosa)
 NatureServe: G4
 other links:  MolluscaBase
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