ハシナガチョウチョウウオ属ぞくMeanings1nounChelmon (genus of tropical fish)Scientific genus name for a group of butterflyfish with elongated snouts. Used in taxonomic contexts.ハシナガチョウチョウウオ属ぞくには、ハシナガチョウチョウウオなどが含ふくまれる。The genus Chelmon includes species such as the copperband butterflyfish.