最終更新日：2022/12/07
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(malacology) Having an extremely narrow conch shape (between 0 and 30% of the diameter) with umbilical width index between 20 and 30%.
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(malacology) Having an extremely narrow conch shape (between 0 and 30% of the diameter) with umbilical width index between 20 and 30%.
DiQt（ディクト）
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