Amongst his children by Echidna are Cerberus, the Lernaean hydra, and the Chimaera.
Cerberus rhynchops; Hypsirhina plumbea, Homalopsis; Hipistes hydrinus of Siam has a compressed body, and much resembles the Hydrophinae in general appearance and its partly marine life.
Carrying Cerberus from Hades to the upper world.
The third and twelfth labours may be solar, the horned hind representing the moon, and the carrying of Cerberus to the upper world an eclipse, while the last episode of the hero's tragedy is possibly a complete solar myth developed at Trachis.
The statue of Serapis in the Serapeum of Alexandria was of purely Greek type and workmanship - a Hades or Pluto enthroned with a basket or corn measure on his head, a sceptre in his hand, Cerberus at his feet, and (apparently) a serpent.
CERBERUS, in Greek mythology, the dog who guarded the entrance to the lower world.
One of the tasks imposed upon Heracles was to fetch Cerberus from below to the upper world, a favourite subject of ancient vase-paintings.