Osawa, M., T. Naruse, and P. K. L. Ng. “New Records of Species of the Polyonyx sinensis Group (Crustacea: Decapoda: Anomura: Porcellanidae) from Japan, the Philippines, Singapore, and Malaysia, With Descriptions of Two New Species”. Zootaxa, vol. 4429, no. 2, June 2018, pp. 303–323, doi:10.11646/zootaxa.4429.2.6.