Another of his offspring was killed with the assistance of Iolaus in the swamps outside Lerna.  
One of his offspring lived in Argolis, where it was strangled to death by a famous hero.  Another of his offspring was killed with the assistance of Iolaus in the swamps outside Lerna.  Yet another of his offspring terrorized Lycia before being killed by Bellerophon.  This creature had a hundred serpents for legs, which was bad in its own way but not as terrible as the lava and fiery rocks which drooled out of its hundred mouths.  Sometimes identified with the Egyptian god Set, this monster's children included the Nemean Lion, the Hydra, and the Chimera. FTP name this unpleasant child of Gaia and Tartarus, the consort of Echidna.
One of his offspring lived in Argolis, where it was strangled to death by a famous hero.  
Typhon