Planaria torva is a species of planarian in the family Planariidae.[1] When an individual is cut into pieces, each piece has the ability to regenerate into a fully formed individual.[2]

Planaria torva
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Platyhelminthes
Order: Tricladida
Family: Planariidae
Genus: Planaria
Species:
P. torva
Binomial name
Planaria torva
(OF Müller, 1773)
Synonyms
  • Fasciola torva OF Müller, 1773
  • Dendroplanaria torva Komárek, 1926
  • Planaria torfrida Perkins, 1928
  • Dugesia torva (Müller OF, 1773)

Diet edit

The food of P. torva consists of freshwater gastropods, tubificid worms, and freshwater arthropods, such as isopods of the genus Asellus and chironomid larvae, although it shows a clear preference for snails.[3] In the United Kingdom, P. torva is a successful predator of the invasive New Zealand mud snail (Potamopyrgus jenkinsi).[4]

References edit

  1. ^ "WoRMS - World Register of Marine Species - Planaria torva (Müller OF, 1773)". www.marinespecies.org. Retrieved 2021-10-19.
  2. ^ "Unravelling How Planaria Regenerate". Sedeer el-Showk. Retrieved 26 January 2017.
  3. ^ Reynoldson, T. B.; Sefton, A. D. (1976). "The food of Planaria torva (Müller) (Turbellaria-Tricladida), a laboratory and field study". Freshwater Biology. 6 (4): 383–393. doi:10.1111/j.1365-2427.1976.tb01623.x. ISSN 0046-5070.
  4. ^ 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 Zoology. 189 (4): 459–484. doi:10.1111/j.1469-7998.1979.tb03974.x. ISSN 0952-8369.