| 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 | Popenaiadini | Nephronaias species Nephronaias copanensis (Martens, 1900): specimens1 available nominal species synonym
 Recent Taxonomic OpinionsNephronaias copanensis — Graf & Cummings (2007), Bogan (2010), Graf & Cummings (2021), Cummings et al. (2025) RangeHonduras. Map of Georeferenced Specimens
 Guatemala
 Honduras
 unknown|  FMNH_24043
 [no locality available - Central America]
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