In a large pot over medium low heat, combine the squash, salsa, broth, and tortilla chips. Bring to a simmer, cover the pot and cook until the squash is tender, 5 - 7 minutes. Stir in the corn, oregano and cumin. Return the soup to a simmer, stir in scallops and cook until they are opaque at the center, 2 to 3 minutes more. Stir in the lime juice.
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