Nereid (Hom. Il. 18,39; Hes. Theog. 244; Hyg. Praef. 8), whose name describes the glossy blue as well as comparable colour shades of the sea (Hom. Il. 16,34; Hes. Theog. 440) and whose masculine counterpart is Glaucus. G. is also represented as a nymph at various locations (Paus. 8,47,2f.; Tzetz. Theogony 100-102).