Amongst his children by Echidna are Cerberus, the Lernaean hydra, and the Chimaera.
Australia and Tasmania possess two animals of this order - the echidna, or spiny ant-eater (hairy in Tasmania), and the Platypus anatinus, the duckbilled water mole, otherwise named the Ornithorhynchus paradoxus.
Caldwell showed that it was filled with yolk, and finally established the fact that Platypus as well as Echidna is oviparous.
Aesculapius (§ 13) - much in the same way as Hercules has contests with serpents and dragons, becomes the patron of medicinal springs, and by marrying the serpent Echidna was the ancestor of the snakeworshipping Scythians.
At the Phrygian Hierapolis the serpent Echidna was expelled by the Apostles Philip and John."