Dictionary of Greek and Roman Geography/Abia'nus
ABLA′NUS (Ἀβιανός), a river of Scythia (Sarmatia) falling into the Euxine, mentioned only in the work of Alexander on the Euxine, as giving name to the Abii, who dwelt on its banks. (Steph. Byz. s. v. Ἄβιοι.) Stephanos elsewhere quotes Alexander aa saying that the district of Hylea on the Euxine was called Ἄβική, which he interprets by Ὑλαία, woody (Steph. Byz. s. v. Ὑλέα).[ P. S. ]