Mactra chinensis
描述：
Description: English: Mactra chinensis 日本語: バカガイ(Mactra chinensis) 千葉県千葉市美浜区・幕張人工海浜にて捕獲. Date: 29 March 2009. Source: Own work. Author: self. Permission (Reusing this file): GFDL&CC.
Description: English: Mactra chinensis 日本語: バカガイ(Mactra chinensis) 千葉県千葉市美浜区・幕張人工海浜にて捕獲. Date: 29 March 2009. Source: Own work. Author: self. Permission (Reusing this file): GFDL&CC.
