Dugesia sicula is a species of dugesiid triclad that lives in freshwater bodies of the Mediterranean Basin, where it is widely distributed.

It has been reported from Sicily,[1] Elba and Mallorca,[2] Eivissa,[3] Sardinia,[4] Algeria,[5] Tunisia,[6] Morocco[7] and Crete.

[8] D. sicula individuals have an asymmetrical penis papilla, with a diaphragm at the base, separating the seminal vesicle from the ejaculatory duct.

The seminal vesicle is wrapped by a thin layer of bulbar muscles.

[1] D. sicula position in relation with other Dugesia species after the work of Lázaro et al., 2009:[9] D. sicula D. aethiopica D. japonica D. ryukyuensis D. notogaea D. bengalensis D. subtentaculata D. gonocephala D. liguriensis D. etrusca D. ilvana D. benazzii D. hepta