This species is characterized by the following: anal fin with four simple rays; the two halves of the air bladder capsules connected by a manubrium beneath which a small, spherical free posterior chamber is located; in males, the first branched pectoral-fin ray is rigid, longest, about twice the width of the second, branched once, and lacking a membrane between branches except near the tip, the following branched rays also branched only once, also with a thick unculiferous pad on the dorsal surface of pectoral-fin rays, the rays and pads being covered by small conical tubercles, few in number and more sparsely distributed on the first, second and third branched rays, and on its posterior margin, an obtusely rounded suborbital flap with tubercles; no such modifications of the pectoral fin occur in females; saddles on the back 3-4; branched dorsal-fin rays 8½; pectoral-fin rays i+9; supraorbital pores 9; body depth 1.3-1.7 times its width (Ref. 132199).