Blue Zaire / Kigoma deepwater forms
A variant of Frontosa (Cyphotilapia frontosa)

Photo: Edelmauswaldgeist · CC0
Prized deep-blue geographic variants from the southern half of the lake. Many of these blue Zaire/Kalemie-type fish are now classified as the separate species Cyphotilapia gibberosa (described 2003), though they are still traded under the frontosa name and command premium prices.