Location: Eastern shores of Van Diemen Gulf, north of Murgenella Creek and about Cooper Creek; south toward East Alligator River. Berndt and Berndt (1951) list this tribe twice under different spellings; it is possible that their Ngamurak form would be the better rendering, but in 1964 they gave preference to Amurag.
Co-ordinates: 132°50'E x 11°55'S
Area: 900 sq. m. (2,300 sq. km.)
References: Earl, 1846; Spencer, 1914; Sweeney, 1939; Tindale, 1940 (as Umoriu), 1964; Capell, 1942; Elkin, Berndt and Berndt, 1951; Berndt and Berndt, 1951, 1964.
Alternative Names: Amarag, Amuruk, Amurag, Amurrak, Ngamurak, Ngamurag, Nga:mu:rak, Umoriu, Umoreo (MS), ? Monobar.