Search for: [Subject and Keywords = Aquatic animals] OR [Subject and Keywords = Freshwater animals] OR [Subject and Keywords = Invertebrates \- identification] OR [Subject and Keywords = Zoology \- Germany] OR [Subject and Keywords = Bezkręgowce \- identyfikacja] OR [Subject and Keywords = Fauna słodkowodna] OR [Subject and Keywords = Zoologia \- Niemcy] OR [Title = Die Süsswasserfauna Deutschlands \: eine Exkursionsfauna. H. 15, Nematodes, Mermithidae und Gordiidae] OR [Creator = Brauer, August \(1863–1917\) \: Editor] OR [Creator = Brauer, August \(1863–1917\) \: Redaktor]