elephant betta

I was told this male betta was an elephant ear betta, but I heard elsewhere that "elephant" or "dumbo ears" are just a genetic mutation. I was hoping someone could help me clarify that and/or tell me what type of betta he is. These are the best pictures I have of him. Thanks!

So yesterday I got my tank all set up and planted, currently there's not much in there plant-wise, I have three Wendtii Greens, one anacharis, and a moss ball. It's a ten-gallon tank with soil in the bottom, gravel, and a piece of driftwood (the moss ball is loosely tied to it until it holds on...