Den Hartog, C. (1964). Proseriate flatworms from the Deltaic area of the rivers Rhine, Meuse and Scheldt. I. and II. Proceedings of the Koninklijke Nederlandse Academie van Wetenschappen. Series C. Biological and medical sciences. 67(1): 10-34.
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Den Hartog, C.
1964
Proseriate flatworms from the Deltaic area of the rivers Rhine, Meuse and Scheldt. I. and II
Proceedings of the Koninklijke Nederlandse Academie van Wetenschappen. Series C. Biological and medical sciences