Diploprion bifasciatum (Cuvier, 1828)
Uncommon in the Solitary Islands Marine Park. West Pacific south to NSW and north to southern Japan, east Indian Ocean. In Australia recorded from northern Western Australia, across the tropical north, through Queensland and south to northern NSW.
Frequents caves and crevices in inshore areas, rocky reef, estuaries. Semi silty conditions, to at least 50m depth.
Adults pale to bright yellow, body sometimes black with bright yellow fins, see bottom photograph. Juvenile top photograph, adult middle and lower photograph. Feeds on small fishes which it swallows whole using its greatly extendable mouth parts. Secretes the skin toxin grammistin under stress. Grows to 25cm.