Tyler, S., Artois, T.; Schilling, S.; Hooge, M.; Bush, L.F. (eds) (2006-2024). World List of turbellarian worms: Acoelomorpha, Catenulida, Rhabditophora. Pseudobiceros gratus (Kato, 1937). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=879577 on 2024-09-21
basis of recordTyler, S.; Schilling, S.; Hooge, M.; Bush, L. F. (comp.). (2006-2016). Turbellarian taxonomic database. Version 1.7., available online athttp://turbellaria.umaine.edu[details]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality