Here's the contact page, select your state and call your local office: https://www.fws.gov/offices/

How did you acquire it? Have you had it for a long time and are you certain it is really a flat pigtoe? Don't let any doubt stop you from reaching out, though. It would be a shame otherwise.

Is that a theoretical question or a real one? Because if it's a real question, that would be really spectacular

Do you genuinely have one?

Call the authorities