Nemadoras elongatus

{{Short description|Species of fish}}

{{Speciesbox

| taxon = Nemadoras elongatus

| authority = (Boulenger, 1898)

| synonyms =

• Oxydoras elongatus Boulenger, 1898
• Opsodoras parallelus Eigenmann, 1925

}}

Nemadoras elongatus is a species of thorny catfish native to the Amazon basin where it can be found in Brazil, Colombia and Peru. This species grows to a length of {{convert|12.7|cm|in}} SL.