The Black Ear Catfish in Thailand is a rarely captured Siluriforme and is a member of the Pangasiidae – Shark catfishes family of fishes and is easily identifiable by a large black spot above the base of the pectoral fin and a black longitudinal stripe along each caudal lobe.  The Black Eared Catfish has a pronounced dorsal fin and pectoral fins with a strong spine and long, filamentous rays which make it obviously related to the Chaophraya Catfish. The Black Eared Catfish is very similar to the Chaophraya Catfish in appearance with the addition of a large distinctive black marking behind its pectoral fins.