沙蟹科，大眼蟹属。分布于朝鲜西岸、日本、台湾岛以及中国大陆的广东、福建、浙江、山东、渤海湾、辽东半岛等地，生活环境为海水，常见穴居于近海或河口的泥滩上。
学名：Macrophthalmus dilatatum
英文名：wide body big eye crab
This species belongs to the genus of Macrophthalmus,family of Ocypodidae.Distributed in North Korea, Japan, Taiwan Island and Chinese mainland Guangdong, Fujian, Zhejiang, Shandong, Bohai Bay, Liaodong Peninsula and other places.They live in the sea, and often in the hole of estuary muddy beach.