World Register of Marine Species (WoRMS)
Tyler, S., Artois, T.; Schilling, S.; Hooge, M.; Bush, L.F. (eds) (2006-2026). World List of turbellarian worms: Acoelomorpha, Catenulida, Rhabditophora. Plagiostomula Westblad, 1956. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=142259 on 2026-08-30
Westblad, E. (1956). Marine "Alloeocoels" (Turbellaria) from North Atlantic and Mediterranean coasts. II. A new freshwater Plagiostomum species. Arkiv för Zoologi. 9: 131–174.