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The masked bannerfish' (''Heniochus monoceros'') is a marine fish belonging to the Chaetodontidae family, native from the Indo-Pacific area. ==Description== The masked bannerfish is a small-sized fish that can reach a maximum length of 23 cm.〔Heemstra, P.C., 1986. Chaetodontidae. p. 627-632. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. 〕〔Rudie Kuiter, “Chaetodontidae & Microcanthidae”, Aquatic Photographics, 2004, ISBN 0953909735〕 Its body is compressed laterally, the first rays of its dorsal fin stretch in a white filament outlined with yellow. The background body color is white with two black vertical bands. The first band masks its face starting at its mouth, and runs to the base of the first rays of the dorsal fin including at the same time its snout and eyes. The lips are white and a fin whitish band runs between the eyes and another one occurs on top of the eyes. the masked bannerfish has a small growth on the axis of the forehead from which radiates a bright whitish to yellowish area. The second band is right in the middle of the fish side. A yellow area extends from the posterior edge of the second black band to the middle of the anal fin including on the way the dorsal and caudal fins. Within this yellow area close to the caudal peduncle, a brown-yellow blotch, variable in size from one fish to another, emerges. ==Distribution & habitat== The masked bannerfish is widespread trough out the tropical and subtropical waters of theIndo-Pacific area from the eastern coast of Africa to Polynesia and from south Japan to New-Caledonia).〔Myers, R. & Pratchett, M. 2010. Heniochus monoceros. The IUCN Red List of Threatened Species 2010: e.T165650A6080493. . Downloaded on 10 September 2015.〕〔Lieske & Myers,''Coral reef fishes'',Princeton University Press, 2009, ISBN 9780691089959〕 The masked bannerfish'' typically lives in external reef slopes and in lagoon rich in corals, at a depth of .〔Dianne J. Bray, 2011, Masked Bannerfish, Heniochus monoceros, in Fishes of Australia, accessed 26 Sep 2014, http://www.fishesofaustralia.net.au/home/species/2413〕〔Allen, G.R. and R.C. Steene, 1988. Fishes of Christmas Island Indian Ocean. Christmas Island Natural History Association, Christmas Island, Indian Ocean, 6798, Australia. 197 p. 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Heniochus monoceros」の詳細全文を読む スポンサード リンク
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