Author: Regan, 1929
Comments: Inhabits areas with a hard bottom (sand, shingle or, less frequently, rock).  Often found amongst stands of aquatic plants (Ref. 4983).  At a size range of 7.5-11.5 cm SL, this species feeds mainly or even exclusively on mollusks.  Both bivalves and gastropods are eaten in approximately equal proportions (Ref. 558).