A family of small marine fish commonly known as whipnose fish, found in deep ocean waters.
From Greek 'cheilos' (lip) plus 'diptera' (two-winged), though the reference is to fin structure. Scientific nomenclature for a family of deep-sea fishes classified by ichthyologists.
Deep-sea whipnose fish have bioluminescent lures and can unhinge their jaws enormously—they're living in constant darkness hunting creatures they'll probably never see fully.
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