For years, many of striped cichlids of the genus Amatitlania were just called convicts, so many different species were thrown together, and being close cousins easily, and unknowingly hybridized, producing what now after decades the average aquarium strain convicts (many most likely hybrids).
It has been only recently been realized that Amatitlania kanna is a different species from siquia or nigrofasciatus., and the use of the common term convict for all is problematic.
Just like many Herichthys are generically called Texas cichlids and many Amphilophines called simply Red Devils (all to me problematic, if serious about cichlids).
So responsible cichlid people have now avoided mixing them up, providing them with proper scientific names, and/or catch locations to keep species pure, and avoid mutt creation.
Here in Panama, and Costa Rica (where many Amatitlania are endemic) almost all cichlids (with the exception, of Parachromis,(guapotes) and Tomocichla (Mogas) are called Chogorros, in some places, and/or on other ares, Sargentos.
But this generic grouping also includes (in other local lingo) in some areas the salt water species Sargeant Major, which is considered a Chogorro.
So you can see how some local collectors might have inadvertently simply mixed them all up.