The article presents the hitherto unpublished tablet MS 2110/1 from the Martin Schøyen Collection, Oslo. The manuscript is handing down a new version of the Sumerian disputation between Bird and Fish. In this version the text is shortened to seventy lines which calls for several modifications on the structural and content-related levels. The first part gives an edition of the tablet with transliteration, translation and commentary. The second part investigates the nature of the abridgements and the refashioning of single lines or whole sections by the scribe.