Although "Texas" seems to be a catch-all term for the genus Herichthys, in truth there is only one true Texas cichlid, and it is cyannoguttatus (the only one of the genus endemic to Texas).
I've seen carpintus, tamasopoensus, and even minckleyi erroneously thrown into the term "Texas cichlid", I suppose because they look similar and are the same genus.
Most people can't tell them apart, and expecting a serious ID from a photo is not realistic.
above is a Herichthys carpintus location Chairel
below a pair of Herichthys tamasopoensus preparing to spawn