4. A son of Ares and Pyrene, was likewise killed by Heracles in single combat. (Apollod. 2.5.11
; Schol. ad Pind. Ol.
At his death he was changed by his father Ares into a swan. (Eustath. ad Hom. p. 254
The last two personages are often confounded with each other, on account of the resemblance existing between the stories about them. (Schol. ad Pind. Ol.
2.147, ad Aristoph. Ran.
963; Hyg. Fab. 31
; Athen. 9.393