…Nuplitural coloration is common in fish and amphibians. For example, in the bitterling fish and stickleback fish, the male's skin turns red from under his chin to his abdomen. In freshwater fish such as bitterlings and sweetfish, numerous pearl-like white bodies appear on the gills and fins, which are specifically called pearl organs. In newts, the male's tail takes on a lustrous deep indigo color. … *Some of the terminology that mentions "pearl organ" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…婚姻色は魚類,両生類によくみられ,たとえばタナゴの仲間やトゲウオの一種イトヨでは,雄のあごの下から腹部にかけての皮膚が赤色に変わる。タナゴやアユなどの淡水魚では,えらぶたや鰭条(きじよう)に真珠様の白色小体が多数現れるが,これはとくに追星pearl organとよばれる。イモリでは雄の尾が光沢のある強い藍色を帯びてくる。… ※「pearl organ」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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