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. Allostoma graffi (de Beauchamp, 1913). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=485298 on 2026-08-02
Beauchamp, P. de. (1913). Sur la faune (Turbellaries en particuller) des eaux saumatres du Socoa. II. Monoophorum graffi n. sp. Bull Soc Zool Fr, 38:159-162