Combine the butter with the bread and cracker crumbs. Add salt, pepper, and paprika. Set aside ¾ cup of this mixture for the top of the dish. Mix the remainder with the clams, onion, and parsley. Pour into a well-buttered oven-proof baking dish and top with the reserved crumb-butter mixture. Dot with additional butter, if desired, and pour the cream over the top. Bake in the preheated oven for 20 minutes. Yields: 6 servings.