Kasseelian
The Kasseelians were an Alpha or Beta Quadrant species. They were known for the Kasseelian opera genre of music. Female Kasseelian prima donnas trained their whole lives for a single performance, after which they typically committed suicide by plunging a dagger into their own chest. ()

A Kasseelian opera house was present on a moon near Starbase 46 as of December 2256. ()
Species