Please enable javascript

Ecological Exploration

Sentinel crab

Crustacea | Macrophthalmidae
Macrophthalmus banzai


The sentinel crab has a horizontal rectangular carapace that is 1-2 cm wide, with thin hairs growing around the lateral margins. It has long eyestalks with jagged lower margins on its eye sockets. The chelae are symmetrical but males have larger chelae than females. The sentinel crab has a soil-colored body and yellow chelae. These crabs prefer muddy beaches and have large populations.


The banzai sentinel crab can be seen all around the mudflats at Gaomei Wetlands.


  • (圖書) 李榮祥,台灣賞蟹情報,台北,2008。
  • (圖書) 林惠真,高美濕地生物資源,台中,1998。
  • (圖書) 林惠真、宋文汀、蘇珊慧,台中縣海岸溼地生態教室,台中,2003。
  • (圖書) 林惠真、曾于芳,話說高美,台中,2014年。
  • (圖書) 林惠真,走入海岸線,台北,2015。