Toad (蟇/蟾蜍) - Toad (English spelling)

Japanese: ヒキガエル(蟇∥蟾蜍) - ヒキガエル（英語表記）toad

A general term for amphibians belonging to the Bufonidae family of the order Frogs, or another name for the Japanese common toad (illustration). There are about 366 species in 31 genera, distributed widely around the world, except for some areas such as Australia. Most species are large, with a body length of 10 to 15 cm, and the largest are the cane toad B. marinus (illustration) and the Colombian common toad B. blombergi , both of the Bufo genus, found in tropical America, which reach a maximum body length of just over 20 cm. However, the Rose's toad B. rosei of South Africa is only about 3 cm long, and the forest toads of the Pelophryne genus of Southeast Asia are only 2 to 3 cm long.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

カエル目ヒキガエル科Bufonidaeに属する両生類の総称，またはニホンヒキガエルの別名（イラスト）。約31属366種がオーストラリアなど一部を除く世界各地に広く分布する。体長10～15cmの大型種が多く，最大はヒキガエル属Bufoの熱帯アメリカに分布するオオヒキガエルB.marinus（イラスト）やコロンビアヒキガエルB.blombergiの最大体長20cmあまり。しかし南アフリカのローズヒキガエルB.roseiは体長約3cm，東南アジアのモリヒキガエル属Pelophryneなどは2～3cmに過ぎない。

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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