AMPHRYSUS, or AMPHRYSSUS, (anc. geog.) a river of Phthiotis a district of Thessaly, running by the foot of mount Othrys, from south to north, into the Enipeus at Thebes of Thessaly; where Apollo fed the herds of king Admetus (Virgil, Lucan). Another Amphrysus in Phrygia, rendering women barren, according to Pliny: Hence the epithet Amphrysiacus (Statius). Also a town of Phocis, at the foot of mount Parnassus, encompassed with a double wall by the Thebans in the war with Philip (Pausanias): Amphrysiates, in Virgil, denotes the Sibyl.