Potamosilurus velutinus, the papillate catfish,Common names of Potamosilurus velutinus at www.fishbase.org. is a species of catfish in the family Ariidae. It was described by Max Carl Wilhelm Weber in 1907, originally under the genus Hemipimelodus. It inhabits freshwater lakes and rivers in New Guinea. Its diet includes mayflies and other terrestrial and aquatic insects, detritus, benthic algae,Food items reported for Potamosilurus velutinus at www.fishbase.org. and crustaceans.
Potamosilurus velutinus reaches a maximum known standard length of , but usually reaches an SL of . It reaches a maximum weight of . It spawns throughout the year.Spawning for Potamosilurus velutinus at www.fishbase.org.Reproduction of Potamosilurus velutinus at www.fishbase.org. It is harvested by subsistence fisheries.
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