The fish has a broad and depressed head with an obtuse snout, and a prominent lower jaw. The head shield and the basal bone of the dorsal fin are granular, and there is a shallow median groove on the head. The occipital process is slightly longer than broad at the base. A pair of small mandibular barbels are present, and the gill membranes are united to each other and with the isthmus. The teeth are obtusely conical, arranged in a crescentic band on the jaws, and in small, oval, widely separated patches on the palate. The eyes have a free orbital margin, and both the dorsal and pectoral spines are almost equal in size and denticulated on both edges.