Sakai, T. (1937). Studies on the Crabs of Japan. II. Oxystomata. <em>Science Reports of the Tokyo Bunrika Daigaku, Section B.</em> 3(Suppl. 2): 67-192, pls. 10-19.[details] Available for editors
DecaNet eds. (2024). DecaNet. Ethusa quadrata Sakai, 1937. Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=440457 on 2024-05-03
Marine Species Traits editorial board (2024). Marine Species Traits. Ethusa quadrata Sakai, 1937. Accessed at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=440457 on 2024-05-03
original descriptionSakai, T. (1937). Studies on the Crabs of Japan. II. Oxystomata. <em>Science Reports of the Tokyo Bunrika Daigaku, Section B.</em> 3(Suppl. 2): 67-192, pls. 10-19.[details] Available for editors
basis of recordLiu, J.Y. [Ruiyu] (ed.). (2008). Checklist of marine biota of China seas. <em>China Science Press.</em> 1267 pp. (look up in IMIS) [details] Available for editors
Present Inaccurate Introduced: alien Containing type locality