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Ogcocephalidae : ウィキペディア英語版 | Ogcocephalidae
The Ogcocephalidae are a family of bottom-dwelling, specially adapted fish. They are sometimes referred to as seabats, batfishes, or anglerfishes. They are found in tropical and subtropical oceans worldwide. They are mostly found at depths between , but have been recorded as deep as .〔〔 A few species live in much shallower coastal waters and exceptionally may enter river estuaries.〔 They are dorsoventrally compressed fishes similar in appearance to rays, with a large circular, triangular, or box-shaped (in ''Coelophrys'') head and a small tail. The largest members of the family are about in standard length. The illicium (a modified dorsal fin ray on the front of the head supporting the esca, a bulbous lure) can be retracted into an illicial cavity above the mouth. The esca is not luminous as in most other groups of anglerfishes, but secretes a fluid thought to act as a chemical lure, attracting prey. Analysis of their stomach contents indicates that batfishes feed on fish, crustaceans, and polychaete worms. ==References==
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