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The Emmelichthyidae family, also known as bonnetmouths, comprises approximately 15 species across two genera. These fish exhibit two distinct body types: some are slender and elongated with moderately protrusible upper jaws, while others are deeper-bodied with highly protrusible upper jaws. They inhabit open waters at depths ranging from 3 to 45 meters (10 to 150 feet), with some species found in deeper environments.1

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