According to some accounts Cetus is Leviathan. Cetus is more likely to be the Sanskrit Ceta. Bhattacharya, 2005, has claimed it is Deneb-Kaitos. This constellation has been known since antiquity. In Mesopotamia, it was identified with the primordial cosmic female principle, the sea-monster Tiamat.... In certain earlier Greek legends, it also represented the gates (and gateposts) of the underworld (considered to be the area under the ecliptic). http://en.wikipedia.org/wiki/Cetus