Air filter replacement question 1995 Lincoln continental?

How do you replace the air filter on a 1995 lincoln continental? I see that there is one clip on top that you need to loosen in order to access the air filter, but it seems to not want to come off. Is there another one on the bottom that I can't see? I'm reluctant to pry it with a screwdriver as I dont want to damage anything.
 
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