Pomacanthus semicirculatus (Cuvier in Cuvier & Valenciennes 1831) —Semicircle angelfish

Status at New Ireland. First recorded from Port Praslin, New Ireland as Holacanthus semicirculatus by Cuvier in Cuvier & Valenciennes (1831: 191), based on MNHN material; reported as Holacanthus semi-circulatus by Lesson (1831: 173, poissons pl. 30, fig. 3). A specimen photographed at Lissenung Island, Kavieng District, 10 m depth, by Dean Tully on 24 June 2013.

Distribution and habitat. New Ireland: 2, 3.—General distribution: Red Sea and East Africa, Madagascar and Mascarenes east to Samoa and Tonga, north to southern Japan, south to Western Australia, New South Wales (Australia) and New Caledonia. Juveniles found in tidal pools, semi-protected channels and on outer reef flats; adults under ledges and in caves of coral-rich lagoon and seaward reefs, 1–30 m depth. Marine.