Glaucus in Wikipedia

Glaucus (Greek: Γλαῦκος) was a Greek sea-god. His parentage is different in the different traditions, which Athenaeus lists (Athen. vii. c. 48 , Claud. de Nupt. Mar. x. 158.): Theolytus the Methymnaean, in his Bacchic Odes - Copeus (also records an affair between Glaucus and Ariadne) Promathides of Heraclea, in his Half Iambics - Polybus of Sicyon (by his wife Euboea) Mnaseas, in Book III of his History of the Affairs of Europe - Anthedon and Alcyone Euanthes, in his Hymn to Glaucus - Poseidon and the nymph Naias...

Link: https://en.wikipedia.org/wiki/Glaucus