[140] And it is said that many other cities also have disappeared, having been swallowed up by the sea which overwhelmed them; since they speak of three in Peloponnesus— "Aegira and fair Bura’s walls, And Helica’s lofty halls, And many a once renowned town, With wreck and seaweed overgrown," [41] [42] as having been formerly prosperous, but now overwhelmed by the violent influx of the sea.