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Anaxyrus americanus
Mint green toad.
Under our porch in wet ivy
Is it, actually. You only have two toads in your area, American and Fowler's. American toads have a spotted chest, Fowler's only have a single spot. Yours has a spotted chest, making it an American toad.
And if that doesn't convince you, look at the connection between the paratoid glands and cranial crests. On a Fowler's toad, they would touch completely, and on an American toad they only touch by a thin cord. This toad only touches by a thin cord.
So why is it not an American toad?