The Great Albino

This is actually canon, check the Leedschithys (I think that’s how you spell it) dossier.

The great albino was a Leedschithys that was very big and five times more deadly when it attacked rafts than a normal Leedschithys. It was pale white in appearance. Many hunters try to hunt this creature, and it drives many hunters mad because of its elusive nature. It is incredibly hard to find and incredibly powerful. Those that have survived an attack, often become traumatized and don’t dare venture into the water again.

-Red Dragon