now that I know that their are other catfish in american waters what kinds would I find down here in Texas?

I belive the problem with north american catfish trade is that too much attention is givin to the larger breeds (Channel,blue,flatheat) and its mostly fishing and consumption I mean up untill today other than three types of catfish I listed I was only aware of gafftops,hardheads,and the bullhead ...

id have to say Corydoras julii iv had one for a while and they apear to be the same to me but im not an expert and I could be wrong but thats what it was sold to me as