I.son of Inachus, king of Argos, and brother of Io, Hyg. Fab. 124; 143; 225; 274; Plin. 7, 56, 57, § 193; Stat. Th. 4, 889. —Hence,
A. Phŏrōnēus , a, um, adj., Phoronean, poet. for Argive: “Phoroneis sub antris,” Stat. S. 3, 2, 101.—
B. Phŏrō-nis , ĭdis, f. adj., Phoronean, poet. for Argive: “Phoronides latuere venae,” i. e. the river Inachus, Sen. Thyest. 115.—Subst.: Phorōnis , ĭdis, f., Io, Ov. M. 1, 668; 2, 524.