World Register of Marine Species (WoRMS)
Proxenetes quadrispinosus Den Hartog, 1966
Tyler, S., Artois, T.; Schilling, S.; Hooge, M.; Bush, L.F. (eds) (2006-2026). World List of turbellarian worms: Acoelomorpha, Catenulida, Rhabditophora. Proxenetes quadrispinosus Den Hartog, 1966. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=143431 on 2026-08-29
Den Hartog C. (1966). A preliminary revision of the Proxenetes group (Trigonostomidae, Turbellaria). VI–X. Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen. Series C: Biological and Medical Sciences. 69: 97-163.