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Álvarez-Presas, M.; Baguñà, J.; Riutort, M. (2008). "Molecular phylogeny of land and freshwater planarians (Tricladida, Platyhelminthes): From freshwater to land and back". Molecular Phylogenetics and Evolution. 47 (2): 555–568. doi:10.1016/j.ympev.2008.01.032. PMID18359250.
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*Tyler S, Schilling S, Hooge M, and Bush LF (comp.) (2006-2012) Turbellarian taxonomic database. Version 1.7 DatabaseArchived 2012-02-04 at the Wayback Machine