Pempheris oualensis (Cuvier, 1831)
Uncommon in the Solitary Islands Marine Park. Distributed throughout the Indo-Pacific region, from the Red Sea to the Line Islands, north to the Ryuku Islands, south to Lord Howe and Rapa Islands. In Australia recorded from South Australia north to north Western Australia, from north Queensland to northern New South Wales, including Lord Howe and Norfolk Islands.
Generally a schooling species by day, frequenting overhangs, caves and under boulders. Depth to 35m.
Plain body colouration, dark blotch on pectoral fin base, dark tip on dorsal fin and dark edging to outer rays of the caudal fin helps to distinguish this from other similar species. Active feeders on plankton, small invertebrates and small fishes, mostly at night, by day forming small to large groups in sheltered areas. Grow to 22cm.