Arapaima:
The arapaima, pirarucu, or paiche ("Arapaima") is a genus of bonytongue native to the Amazon and Essequibo basins in South America.
en.wikipedia.org
巨骨舌鱼:
巨骨舌鱼（学名："Arapaima gigas"）是巨骨舌鱼属（"Arapaima"）下的唯一一个物种，也称海象、象鱼、大頭巨骨舌鱼，主要分布在南美洲的亞馬遜河裡，被认为是活化石。
zh.wikipedia.org
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Arapaima巨骨舌鱼