World Register of Marine Species (WoRMS)
Girardia guatemalensis (Mitchell & Kawakatsu, 1973)
Tyler, S., Artois, T.; Schilling, S.; Hooge, M.; Bush, L.F. (eds) (2006-2026). World List of turbellarian worms: Acoelomorpha, Catenulida, Rhabditophora. Girardia guatemalensis (Mitchell & Kawakatsu, 1973). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=484636 on 2026-08-29
Mitchell, R. W., Kawakatsu, M. (1973). Freshwater cavernicole planarians from Mexico: New troglobiotic and troglophilic Dugesia from caves of the Sierra de Guatemala. Annales de Spéléologie. 27: 639-681[Date on title page 1972; actually published in 1973].