There is only 1 Texas cichlid, Herichthys cyanoguttatus.
The others are location point point Herichthys carpintus morphs, none from Texas, but called Texas because they look similar.
Below Herichthys carpintus "Chairel". Chairel is a lagoon found close to the Caribbean sea in Mexico, there are other collection points such a Rio Hondo, Escondido etc. These would be nearly impossible to discern with a couple unclear photosphotos .

The problem is not only that the different species look similar, but that even within the species they appear different at different times.
The one above, and one below are the same individual, at different times.

Now below a Herichthys tamasopoensis, often erroneously called a Texas cichlid.

another fly in the ointment, is that for many years aquarists have been unaware of these separate species, and crossbreeding Herichthys cyanoguttatus and carpintus creating an generic aquarium strain, that would be impossible to ID without a DNA test.
So if you got yours at a LFS, you should probably assume its one of those. aquarium strains
Any store that had a true morph would want to use one of those location point handles to up its value, and cost if they were actually up of the fish they sell.