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. Provortex tubiferus Luther, 1948. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=143006 on 2026-08-31
Luther, A. (1948). Untersuchungen an rhabdocoelen Turbellarien. VII. Über einige marine Dalyellioida. VIII. Beiträge zur Kenntnis der Typhloplanoida. Acta Zoologica Fennica. 55:1-122.