Epiceratodus - Epiceratodus

Japanese: エピセラトダス - えぴせらとだす
Epiceratodus - Epiceratodus

...A freshwater fish belonging to the family Epiceratopsidae (illustration). It lives in the rivers of Queensland, Australia.

From [Lungfish]

... Lungfish flourished from the late Devonian to the Permian periods of the Paleozoic era, and were widely distributed in freshwater areas around the world, leaving behind many fossils. However, they quickly declined after that, and only five species in three families and three genera are known to exist today on three continents: Australia, South America, and Africa. In Japanese aquariums, Neoceratodus (Epiceratodus) (illustration), Lepidosiren (illustration), and Protopterus (illustration) are available for viewing. Some species of this group have external gills like frog larvae and adhesive organs on the ventral surface of the head, and their swim bladders have the function of breathing air, as well as other developmental characteristics, which have led to discussion of their evolutionary relationship with amphibians. ...

*Some of the terminology explanations that mention "Epiceratodus" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…肺魚亜綱エピセラトダス科に属する淡水魚(イラスト)。オーストラリアのクイーンズランド州の河川にすむ。…

【ハイギョ(肺魚)】より

… 肺魚類は古生代のデボン紀後期から二畳紀にかけて栄え,世界各地の淡水域に広く分布していたので,多くの化石が残されているが,その後急速に衰亡の途をたどり,現生種はオーストラリア,南アメリカ,アフリカの3大陸に3科3属5種が知られているだけである。日本の水族館でもネオセラトダス(エピセラトダス)(イラスト),レピドシレン(イラスト),プロトプテルス(イラスト)が観覧に供されている。この類は孵化(ふか)した仔稚魚(しちぎよ)が種類によりカエルの幼生のような外鰓(がいさい)や頭部腹面に接着器官をもつものがあること,うきぶくろが空気呼吸の機能をもつこと,その他発生上の特徴などから両生類との進化史上の関係が論じられている。…

※「エピセラトダス」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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