Calăïs
（
Κάλαϊς) and
Zetes (
Ζήτης). The Boreadae, or sons of Boreas and Orithyia. They were both
winged heroes, and took part in the Argonautic expedition. Coming in the course of the
enterprise to Salmydessus, they set free
Phineus
(q.v.), the husband of their sister Cleopatra , from the Harpies, chasing them through the air
on their wings. According to one story, they perished on this occasion; according to another,
they were slain afterwards by Heracles on the island of Tenos, on their return from the
funeral games of Pelias. (See
Acastus.) This was in
retribution for the counsel which they had given to the Argonauts on the coast of Mysia, to
leave Heracles behind. Their graves and monuments were shown in Tenos. One of the
pillars was said to move when the north wind blew. See
Argonautae.
