Green Fish

ShapeRoughly square in cross-section with large prominent papillae at each corner of the square. Body surface otherwise smooth. Many tube feet in three rows on underside. ColourVery dark green, appearing almost black; the papillae are orange-tipped. HabitatOn reef flats or on broken-coral rubble, at depths of 0 to 5 m in areas where there is much water movement. Average density is several hundred individuals per hectare. ValueLittle commercial value. Somtimes it is classified as the lowest grade because of its small size.

Length : 10 - 30 cm
Width : 3 - 6 cm
Body wall thickness : 2 - 6 mm
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