A Striped Silver Dollar Piranha (Myleus schomburgkii), or should i say false striped dollar piranha, it is the same fish. Piranha science is not an exact science, some will say this is a different species, or subspecies, some count 100 species, some dont if they cannot count that high, but i get all info from the internet just like you and then make an educated guess. Looking at this fish you can already see why they got the name they have, though i think the US should change the shape of the dollar to look more like the silhouette of the Striped Silver Dollar Piranha, oh well