Mersa Matruh is a Mediterranean seaport an the caipital o the Matruh Govrenorate in Egyp. It is 240 km wast o Alexandria an 222 km frae Sallum, on the main heich-gate frae the Nile Delta tae the Libian border. Anither heich-gate leads sooth frae the toun, toward the Wastern Desert an the oases o Siwa an Bahariya. Durin Auncient Egyptian times an durin the reign o Alexander The Great, the ceety wis kent as Amunia. In Ptolemaic an Byzantine times it wis kent as Paraitonion (Παραιτόνιον), an in Roman times, as Paraetonium.