River basins in northwest Sardinia, Italy, Europe.
This species cohabits in some localities, in rivers in northwest Sardinia, with Dugesia benazzii.
Evolution and Systematics
Molecular evidences and morphological characters indicate that Dugesia hepta has recently evolved from Dugesia benazzii.
Molecular Biology and Genetics
D. hepta has an haploid chromosome set of n=7.
- G. A. Stocchinoa; G. Corsoa; R. Manconia; S. Casua & M. Pala (2005). "Endemic freshwater planarians of Sardinia: Redescription of Dugesia hepta (Platyhelminthes, Tricladida) with a comparison of the Mediterranean species of the genus". Journal of Natural History (Taylor & Francis) 39 (22): 1947–1960. doi:10.1080/00222930500060025.
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