Ball, Ian; Reynoldson, T. B. (1981). British Planarians. Platyhelminthes: Tricladida. Keys and notes for the identification of the species (Synopses of the British Fauna). Cambridge University Press. p.141. doi:10.1002/iroh.19830680211.
Ball, Ian R.; Reynoldson, T. B.; Warwick, T. (2009). «The taxonomy, habitat and distribution of the freshwater triclad Planaria torva (Platyhelminthes: Turbellaria) in Britain». Journal of Zoology157 (1): 99-123. ISSN0952-8369. doi:10.1111/j.1469-7998.1969.tb01691.x.
Reynoldson, T. B.; Sefton, A. D. (1976). «The food of Planaria torva (Müller) (Turbellaria-Tricladida), a laboratory and field study». Freshwater Biology6 (4): 383-393. ISSN0046-5070. doi:10.1111/j.1365-2427.1976.tb01623.x.
Reynoldson, T. B.; Piearce, Bronwen (1979). «Predation on snails by three species of triclad and its bearing on the distribution of Planaria torva in Britain». Journal of Zoology189 (4): 459-484. ISSN0952-8369. doi:10.1111/j.1469-7998.1979.tb03974.x.
Ball, Ian R.; Reynoldson, T. B.; Warwick, T. (2009). «The taxonomy, habitat and distribution of the freshwater triclad Planaria torva (Platyhelminthes: Turbellaria) in Britain». Journal of Zoology157 (1): 99-123. ISSN0952-8369. doi:10.1111/j.1469-7998.1969.tb01691.x.
Reynoldson, T. B.; Sefton, A. D. (1976). «The food of Planaria torva (Müller) (Turbellaria-Tricladida), a laboratory and field study». Freshwater Biology6 (4): 383-393. ISSN0046-5070. doi:10.1111/j.1365-2427.1976.tb01623.x.
Reynoldson, T. B.; Piearce, Bronwen (1979). «Predation on snails by three species of triclad and its bearing on the distribution of Planaria torva in Britain». Journal of Zoology189 (4): 459-484. ISSN0952-8369. doi:10.1111/j.1469-7998.1979.tb03974.x.