Synopia ultramarina Dana, 1853: 995, pl. 68 fig. 6 a–h.— Bovallius, 1886: 613, pl. 1, figs 1–21.— Stebbing, 1906: 271.— Spandl, 1924: 47, fig. 17 (part).— Schellenberg, 1926: 341.— K.H. Barnard, 1930: 367.— Shoemaker, 1933: 11.—Pirlot, 1936: 301.— Shoemaker, 1945: 195, fig. 8.— Nagata, 1965: 171.— J.L. Barnard, 1972: 51.— Ortiz, 1978: 9.— Ledoyer, 1986: 990, fig. 391.— Hirayama, 1988: 55, figs 279–282.— J.L. Barnard & Thomas, 1989: 363, figs 1–4 (part).— J.L. Barnard & Karaman, 1991: 716.— Lowry & Stoddart, 2003: 124 (catalogue).— Hughes, 2009: 880 –891, figs 1, 2.
Synopia scheeleana.— Ledoyer, 1979 b: 137, fig. 88 (II).
Material examined. 2 males, 4 females (OUMNH.ZC.2002.24.139) outside Risong channel, light trap sample, 15 m; 07° 17.903 'N, 134 ° 28.544 'E; leg. S. De Grave & C. Burras, night 25 th – 26 th May 2002; 2 females, 1 male (OUMNH.ZC.2002.24.140) Risong Cove, WWII wreck; light trap, 2m depth, sandy bottom; 07° 17.987 'N, 134 ° 28.756 'E; leg. S. De Grave & C. Burras, 28 th – 29 th May 2002.
Distribution. Australia: Queensland: Lizard Island (Hughes 2009), Lowe Isles (K.H. Barnard 1930), Heron Island and One Tree Island (Hughes 2009); Palua (present study); Indonesia: Borneo (Pirlot 1936). Japan: Seto Inland Sea (Nagata 1965), Tomioka Bay (Hirayama 1988); Madagascar (Ledoyer 1986); Indian Ocean. (Dana 1853); Red Sea (Spandl 1924); West Atlantic (Dana 1853, Stebbing 1906); Bermuda (Shoemaker 1945); Caribbean (Shoemaker 1933, Ortiz 1978, J.L. Barnard & Thomas 1989); Brazil (Dana 1853).