Abbottina rivularis (English name)

Japanese: ツチフキ(土吹) - ツチフキ（英語表記）Abbottina rivularis

Also known as Doromoroko and Sunamoroko. A freshwater fish of the Cyprinidae family. It is found in Japan (originally from Honshu west of Kinki and Kyushu), the Korean Peninsula, and the eastern part of the Asian continent. In recent years, it has also been breeding in the Kanto Plain. It is thought to have been transplanted among carp and crucian carp. It lives on the muddy bottoms of shallow swamps and ponds in the plains, and in puddles on riverbeds. It is similar in shape to the Japanese dace, but is smaller, with adult males measuring 8.5-11 cm in length and females 7-8.5 cm. Its body is thicker and shorter than the Japanese dace. Its spawning season is from April to May, and it has a unique spawning habit.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

別名ドロモロコ，スナモロコ。コイ目コイ科の淡水魚。分布地は日本(原産地は近畿以西の本州，九州)，朝鮮半島およびアジア大陸の東部など。近年は関東平野などでも繁殖している。これはコイやフナなどに混じって移殖されたものと思われる。平野部の浅い沼や池，河川敷の水たまりなどの泥底にすむ。形はカマツカに似るが，カマツカよりも小型で成魚の全長は雄8.5～11cm，雌7～8.5cm。体はカマツカよりも太く短い。産卵期は4～5月で特異な産卵習性をもつ。

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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