Hermaphrodism of the tiger puffer, Takifugu rubripes (Actinopterygii : Tetraodontiformes : Tetraodontidae), from Hokuto, Hokkaido, Japan

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  • 北海道南部の北斗市沖から採集された雌雄同体のトラフグTakifugu rubripes
  • ホッカイドウ ナンブ ノ ホクトシオキ カラ サイシュウ サレタ シユウ ドウタイ ノ トラフグ Takifugu rubripes

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Abstract

A single specimen of a hermaphroditic tiger puffer, Takifugu rubripes (Temminck and Schlegel, 1850), was collected from the western North Pacific, off Hokuto, Hokkaido, Japan.　The left gonad of the specimen was of testicular tissue, and the right gonad was ovarian tissue sandwiched by testicular tissue.　This is the first instance of hermaphrodism in this species.　In addition, the anterior and posterior nostrils of the specimen were fused to each other, and the left side of the body was abnormally pigmented.

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