The hardhead catfish has six barbels. It has one pair of long round barbels on the sides of the mouth and two pairs of short white barbels on the chin. Its head is flat with a slight incline towards the dorsal fin. It has a forward-oriented mouth. The hardhead catfish has a silvery scaleless body that tapers to a forked tail. The upper half of the fish’s body appears dark gray/brown, olive-green, or silver-blue/green and fades to white near belly. It has a single dorsal fin. Both of its pectoral fins have spines. It also has a single adipose fin.