Author: Staeck, 1975
Comments: Usually found on rocks and rubble; very stationary and territorial.  The center of the territory is a crack or fissure in the rock.  Feeds mainly on crustaceans which are picked from rocks and very occasionally from drifting matter (Ref. 6770).  Aquarium keeping:  in pairs; minimum aquarium size 60 cm (Ref. 51539).