Tyler S, Schilling S, Hooge M, and Bush LF (comp.) (2006-2016) Turbellarian taxonomic database. Version 1.7 http://turbellaria.umaine.edu (data licensed under Creative Commons Attribution-NonCommercial-ShareAlike 2.0; material adapted: formatted and edited)
Phylum Xenacoelomorpha Philippe, et al., 2011. In: Animal biodiversity: An outline of higher-level classification and survey of taxonomic richness
Journal/Book Name, Vol. No.:
Zootaxa, issue 3148
Online ISSN 1175-5334; available online at http://www.mapress.com/zootaxa/
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