Hyman, L. H. (1931). Studies on the morphology, taxonomy, and distribution of North American triclad Turbellaria. III. On Polycelis coronata. Trans Am Microsc Soc, 1(2):124-135
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Hyman, L. H.
1931
Studies on the morphology, taxonomy, and distribution of North American triclad Turbellaria. III. On Polycelis coronata.