Ariomma brevimanus (Klz.) has the following diagnostic feature: elongated body, depth 25.7% of standard length, IDX, 2DI + 13-15, A II + 15, P 24, peduncles cylindrical in cross section with two fleshy keels on both sides, eyes with well developed adipose tissue, vomer and palatines toothless, pharyngeal sac present behind the last gill arch, caudal skeleton containing two hypurals and three epurals, vertebrae 13 + 17 + 1, colour dark brown dorsally, ventral surface and sides silver.