Butterfish (Coridodax pullus), marari of the Maoris, is a kelp fish found throughout New Zealand, but most commonly in the south. It grows to about 20 in. in length, is purplish grey to olive green, lighter below. The fins are variegated with bright blue and the body is marbled and streaked with brown. An alternative name is “greenbone” from the fact that the bones and the flesh in contact with them are stained bright bluish-green. Of excellent flavour, it is keenly sought for on the market. A distinctive feature is the broad sweeping dorsal and anal fins.
by Arthur William Baden Powell, Assistant Director, Auckland Institute and Museum.