XEROGYPSUS (Ξηρόγνψος, Anna Comn. 7.11, p. 378, Bonn), a small river in the SE. of Thrace, which falls into the Propontis, not far from Perinthus.
In some maps it is called the Erginus, upon the authority of Mela (2.2). [J.R]
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.