Kreis, Hans A. (1932). Reports of an Expedition to Paraguay and Brazil in 1926-7, Suported by the Trustees of the Percy Sladen Memorial Fund and the Executive Committee of the Carnegie Trust for the Universities of Scotland. Fresh-water Nematoda from the Paraguayan Chaco. The Journal of the Linnean Society of London (Zoology), 38: 55-90.
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Kreis, Hans A.
1932
Reports of an Expedition to Paraguay and Brazil in 1926-7, Suported by the Trustees of the Percy Sladen Memorial Fund and the Executive Committee of the Carnegie Trust for the Universities of Scotland. Fresh-water Nematoda from the Paraguayan Chaco
The Journal of the Linnean Society of London (Zoology)