Head and body brown; relatively large, black branchial blotch from mid-gill slit to rear border of eye; dusky blotch around eye continued onto forehead and around spinous dorsal base; dark brown iris; pale dusky brown lips. Large pelvic fin rudiment, narrowly attached to posterior margin of ventral flap. Midbody scales with 1-7 spinules, not closely packed; elongate spinules on posterior half of body. Scale spinules on posterior half of body of male very prominent, scale ridge rugosities developing at about 55-65 mm SL.