Chaetodon plebeius (Cuvier, 1831)
Uncommon in the Solitary Islands Marine Park. West Pacific region, from the Andaman Sea to Fiji, north to Japan, south to northern Australia. In Australia recorded from Perth to north of Exmouth in Western Australia, the Great Barrier Reef area of Queensland, south to northern NSW and including Lord Howe and Norfolk Islands.
Frequents coral areas around islands and offshore reefs, where it feeds on polyps of Acropora sp. corals. Depth to at least 15m.
Central blue spot may be missing in some individuals. Form pairs during breeding and has been observed cleaning parasites from other fishes. Juvenile in lower photograph. Grows to 15cm.