He had forty-nine siblings and out of them had five full brothers namely Proteus, Busiris, Enceladus Lycus and Daiphron through their mother Argyphia, a woman of royal blood.
Lynceus's father, Aegyptus, commanded that his sons should marry the Danaïdes, but Danaus, together with his daughters, fled to Argos where King Pelasgus ruled.
Forty-nine followed through, but one, Hypermnestra refused because Lynceus honored her wish to remain a virgin.
Danaus was angry with his disobedient daughter and threw her to the Argive courts, but Aphrodite intervened and saved her.
In some versions of the legend, the Danaïdes, minus Hypermnestra (or sometimes alternately Amymone), were punished in Tartarus by being forced to carry water through a jug with holes, or a sieve, so the water always leaked out.