Young, J. O. (1972). Further studies on the occurrence of freshwater microturbellaria in the British Isles. I. A description of Macrostomum johni sp. nov. Freshwater Biol, 2: 253-258
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Young, J. O.
1972
Further studies on the occurrence of freshwater microturbellaria in the British Isles. I. A description of Macrostomum johni sp. nov.