LISTRON(Λιστρῶν), a place in Epirus Nova, mentioned by Hierocles with a fortress ALISTRUS(Ἀλίστρος, Procop, de Aed. 4.4). It is probably represented by the village and castle of Klisúra, situated on the river Aous ( Viósa), which is mentioned by Cantacuzenus (Κλεισοῦρα, 2.32; comp. Anna Comnena, 13. p. 390) in the fourteenth century, together with other places which are still to be recognised as having been the chief strongholds in this part of Greece. [AOUS] (Leake, Northern Greece, vol. 1. p. 383.)
[E.B.J]