I doubt anyone can name all the varieties. There are populations named for the particular cove they inhabit on the lake. And, since Lake Tanganyika is one of the oldest and largest lakes on the planet, that leaves alot of locales to be named after. SOme are named after the villages they're caught near. This random naming theme may have cross-overs that will require sorting out at some time.
The one's I know are strains/populations I maintain. These include six-stripe and seven-stripe (colloquially labeled Burundi), a colony of 11 adult Mpimbwe, 30+ Karilani (yellow dorsal), Black Nangu (dominant and breeding males turn completely black), Kitumba (deep bodied), Moba (blue-purple), and Bismarck (silver-blue).