Metaloricaria nijsseni is a species of armored catfish endemic to Suriname where it occurs in the Suriname, Saramacca, Nickerie and Corantijn River basins. This species grows to a length of SL. Etymology The catfish is named in honor of Han Nijssen (1935-2013), of the Zoölogisch Museum. References Harttiini Taxa named by Isaäc J. H. Isbrücker Fish described in 1975 Fish of Suriname Endemic fauna of Suriname