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McDonald's new Fish McBites is set for a seasonal national roll-out next month to coincide with the Catholic holiday of Lent, one of the few seafood items released by the restaurant chain in its existence, but it may have a shot at taking a permanent place on the menu -- if it passes a lot of tests.

The Fish McBites will be rolled out in stores by Feb. 8 in three sizes: 3 oz., 5 oz. and 10 oz. In addition, they will be an option in the kid-focused Happy Meals.

While