Psamathe was theorized to be a sea-nymph (nereid) by Karl Bernhard Stark [de] (1863) and a personification of the "sand of the sea-shore" (Greek: ψάμαθος psamathos), from which she derived her name.
And by oracular decree, the king was forced to leave in order to found the city of Tripodiscium near Megara, where he would live out his life.
[4] It is a female monster with a snake protruding from her forehead in Statius's version, possibly having snake-feet (anguipedal form) as well.
[6] The monster is also called a Kēr (Greek: Κήρ "death-demon") in one poem,[8] and a late source (9th to 11th century) labels her as one of the Lamiai.
[10] The poem indicates that the ker was entombed in the city of the tripod (Tripodiscium) to stand as a monument to commemorate Psamathe, and that its slayer Coroebus is interred right underneath the monster.