or ANAXIS (Ἀναξίας or Ἄναξις), a son of Castor and Elaeira or Hilaeira, and brother of Mnasinus, with whom he is usually mentioned. The temple of the Diosctri at Argos contained also the statues of these two sons of Castor (Paus. 2.22.6), and on the throne of Amyclae both were represented riding on horseback. (3.18.7.)
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890