See text Dugesia (/duˈd͡ʒiʒ(i)ə/[citation needed]) is a genus of dugesiid triclads that contains some common representatives of the class Turbellaria.

These animals have a couple of eyes constituted by a multicellular pigmented cup with many retinal cells to detect the amount of light in the nearby environment.

At the anterior part of the body, behind the eyes level, they have two of structures called auricles that give the triangle look to the 'head' and that allow them to detect the intensity of water current.

Each side of the anterior margin of the head have between 5 and 10 shallow sensory fossae, their number depends on the species or the individual.

[3] In Dugesia the ovaries are ventrally situated, they start just behind the brain, usually at the level of the fourth intestinal branch.

[2] Phylogenetic tree including five dugesiid genera after Álvarez-Presas et al., 2008:[8] Girardia Neppia Cura Schmidtea Dugesia Molecular phylogeny of 13 Dugesia species after 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 Molecular phylogeny of Dugesia species after Solà et al., 2013:[10] D. aethiopica D. sicula D. etrusca D. ilvana D. gonocephala D. benazzii D. hepta D. cretica D. elegans D. damoae D. effusa D. improvisa D. ariadnae D. arcadia D. malickyi D. aenigma D. sagitta D. parasagitta The following species are currently recognised in the genus Dugesia:[11]