D1 71; D2 absent; P1 12; P2 6; A 54. Body brownish, a distinct, large dark blotch at junction of straight and curved parts of lateral line and a smaller blotch on middle of straight section of lateral line, many dark rings scattered on body. Body oval and flat, with eyes on left side which are sepantled by a bony ridge. Teeth in jaws in one row, rather strong, sometimes caninoid; no teeth on palate. Upper profile of head without notch in front of eye. Scales of ocular side more or less ctenoid anteriorly, mostly cycloid posteriorly; upper profile of head scarcely notched, usually evenly curved.