A synonym of the order Pleuronectiformes, it includes all species with asymmetrical bodies and both eyes on one side of the body. It is made up of the suborder Pleuronectiformes and the suborder Pleuronectiformes. The suborder Pleuronectiformes is characterized by the fact that some individuals of the same species have both eyes on the right side of the body and some on the left, that the anterior ray of the dorsal fin is a spine, and that the dorsal fin starts at the back of the head, and it only includes the family Pleuronectidae. The suborder Pleuronectiformes is characterized by both eyes on one side of the body depending on the species, that the dorsal fin has no spines, and that the dorsal fin starts at the front of the head, and it includes three families: Pleuronectoid, Pleuronectoid, and Pleuronectoid. The superfamily Pleuronectoidea includes only the family Pleuronectidae, the superfamily Pleuronectoidea includes four families, namely Pleuronectidae, Pleuronectidae, Pleuronectidae, and Scophthalmidae, and the superfamily Pleuronectoidea includes eight families, namely Pleuronectidae, Pleuronectidae, Pleuronectidae, and Pleuronectidae. In 2006, the Canadian ichthyologist Joseph S. Nelson (1937-2011) revised the classification system, and the subfamily Pleuronectidae and Pleuronectidae, which were previously classified as Pleuronectidae, were promoted to families and moved to the superfamily Pleuronectoidea. [Kunio Amagaoka September 15, 2015] [References] | | |Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
カレイ目魚類Pleuronectiformesと同義語で、体は左右不相称、両眼は体の片側にあるすべての種が含まれる。ボウズガレイ亜目とカレイ亜目からなる。ボウズガレイ亜目は同一種でも両眼が体の右側にある個体と左側にある個体がいること、背びれの前鰭条(ぜんきじょう)が棘(とげ)であること、背びれは頭の後部から始まることなどの特徴をもち、ボウズガレイ科のみを含む。カレイ亜目は両眼が種によって左右どちらかの片側にあること、背びれに棘がないこと、背びれが頭の前部から始まることなどの特徴をもち、コケビラメ上科、カレイ上科およびウシノシタ上科の3科が含まれる。コケビラメ上科にはコケビラメ科のみを、カレイ上科にはヒラメ科、ダルマガレイ科、カレイ科およびスコフタルムス科の4科を、そしてウシノシタ上科にはカワラガレイ科、ベロガレイ科、ササウシノシタ科、ウシノシタ科など8科を含む。2006年にカナダの魚類学者ネルソンJoseph S. Nelson(1937―2011)によって改訂された新しい分類体系により、従来カレイ科とされていたカワラガレイ亜科とベロガレイ亜科はそれぞれ科に昇格されて、ウシノシタ上科に移された。 [尼岡邦夫 2015年9月15日] [参照項目] | | | |出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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