SIGA (Σίγα, Ptol. 4.2.2), a river of Mauritania Caesariensis, falling into a bay of the sea opposite to the island of Acra (now Caracoles). Scylax (p. 51) calls it Σίγον. Probably the present Tafna. [T.H.D]
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.