Untersuchungen über die Süsswasser-Mikrofauna Paraguays Daday, Jenö, 1855-1920 creator Michaelsen, W. (Wilhelm), 1860-1937 contributor text book Stuttgart E. Nägele 1905 1905
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GER Freshwater animals Naididae Paraguay QL247 .D2X Zoologica, Hft.44 https://www.biodiversitylibrary.org/bibliography/11316 11734156 08006962 10.5962/bhl.title.11316 DLC