Nilus was one of 3,000 river gods children of the TitansOceanus and his sister-wife Tethys.[1] He was father to several children, of these included Memphis[2] (mother of Libya by Epaphus a king of Egypt).
When Epaphos was ruler of the Aigyptians (Egyptians), he married Neilos' daughter Memphis, and in her honour founded the polis of Memphis, and fathered a daughter Libya. [N.B. Libya was the ancient Greek name for the continent of Africa.]
Belos (Belus) [grandson of Epaphos] remained to become king of Aigyptos (Egypt), and married Neilos' daughter Ankhinoe (Anchinoe), who gave him twin sons, Aigyptos (Aegyptus) and Danaus.
Pseudo-Plutarch, Greek and Roman Parallel Stories:
Bousiris (Busiris), the son of Poseidon and Anippe, daughter of Neilos ... So says Agathon of Samos.
Tzetzes, Chiliades:
Hippostratus says that Aegyptus has begotten only by Eurryroe, The daughter of Nilus, fifty sons; As well as Danaus has begotten all his daughters, By Europa, the daughter of Nilus,...
Tzetzes, John, Book of Histories, Book VII-VIII translated by Vasiliki Dogani from the original Greek of T. Kiessling's edition of 1826. Online version at theio.com