According to Pseudo-Hyginus the "Gorgo Aix" (Γοργώ Aιξ), daughter of Helios, was killed by Zeus during the Titanomachy. From her skin, a goat-like hide rimmed with serpents, he made his famous aegis, and placed her fearsome visage upon it. This he gave to Athena. Then Aix became the goat Capra (Greek: "Aix"), on the left shoulder of the constellation Auriga. A primeval Gorgon was sometimes said to be the father of Medusa and her sister Gorgons by the sea Goddess Ceto. This figure may have been the same as Gorgo Aix as the primal Gorgon was of an indeterminable gender.