{{Short description|Species of flatworms}} {{Speciesbox | image = Planaria torva.jpg | taxon = Planaria torva | authority = (OF Müller, 1773) | synonyms = * ''Fasciola torva'' <small>OF Müller,&nbsp;1773</small> * ''Dendroplanaria torva'' <small>Komárek,&nbsp;1926</small> * ''Planaria torfrida'' <small>Perkins,&nbsp;1928</small> * ''Dugesia torva'' <small>(Müller OF, 1773)</small> }}

'''''Planaria torva''''' is a species of planarian in the family Planariidae.<ref>{{Cite web|title=WoRMS - World Register of Marine Species - Planaria torva (Müller OF, 1773)|url=https://www.marinespecies.org/aphia.php?p=taxdetails&id=416482|access-date=2021-10-19|website=www.marinespecies.org}}</ref> When an individual is cut into pieces, each piece has the ability to regenerate into a fully formed individual.<ref>{{cite web|title=Unravelling How Planaria Regenerate|url=http://www.nature.com/scitable/blog/accumulating-glitches/unravelling_regeneration_in_planaria|publisher=Sedeer el-Showk|accessdate=26 January 2017}}</ref>

== Diet == 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.<ref name="ReynoldsonSefton1976">{{cite journal | last1 = Reynoldson | first1 = T. B. | last2 = Sefton | first2 = A. D. | title = The food of ''Planaria torva'' (Müller) (Turbellaria-Tricladida), a laboratory and field study | journal = Freshwater Biology | volume = 6 | issue = 4 | year = 1976 | pages = 383–393 | issn = 0046-5070 | doi = 10.1111/j.1365-2427.1976.tb01623.x}}</ref> In the United Kingdom, ''P. torva'' is a successful predator of the invasive New Zealand mud snail (''Potamopyrgus jenkinsi'').<ref name="Reynoldson1979">{{cite journal | last1 = Reynoldson | first1 = T. B. | last2 = Piearce | first2 = Bronwen | title = Predation on snails by three species of triclad and its bearing on the distribution of ''Planaria torva'' in Britain | journal = Journal of Zoology | volume = 189 | issue = 4 | year = 1979 | pages = 459–484 | issn = 0952-8369 | doi = 10.1111/j.1469-7998.1979.tb03974.x}}</ref>

== References == {{Wikispecies}} {{Reflist}}

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Category:Continenticola Category:Animals described in 1773

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