ITUNA in Britain, mentioned by Ptolemy (2.3.2) as an aestuary immediately to the north of the Moricambe aestuary == Morecambe Bay. This identifies it with the Solway Firth. [R.G.L]
Dictionary of Greek and Roman Geography, illustrated by numerous engravings on wood. William Smith, LLD. London. Walton and Maberly, Upper Gower Street and Ivy Lane, Paternoster Row; John Murray, Albemarle Street. 1854.