What is the name of Titan's second-largest known liquid body?

Ligeia Mare is Titan’s second-largest known body of surface liquid, after Kraken Mare.

Located near Titan’s north pole, Ligeia Mare is a vast sea-like body filled predominantly with liquid methane, plus smaller amounts of ethane, dissolved nitrogen, and organic compounds. Its name comes from Ligeia, one of the sirens in Greek mythology. The term “mare” means sea and is used for broad, dark surface features on planetary bodies.

Cassini radar observations mapped the lake’s shape and revealed remarkably smooth surfaces and depths reaching roughly 170 metres in measured regions. Estimates place its area near 126,000 square kilometres, making it larger than Earth’s Lake Superior. Radar data also suggest that parts of its shoreline may connect hydrologically with Titan’s larger Kraken Mare.

A common mix-up is Ontario Lacus, which is Titan’s largest lake in the southern hemisphere, but it is much smaller than Ligeia Mare. Punga Mare is another major northern sea, yet it ranks below Ligeia Mare in area.