Origen's authorship of the so-called Hypomnema on Psalms by Origen, a rather long treatise on the headings of certain Psalms, was up to the present never questioned. However, in connection with the editorial work on Eusebius' commentaries on Psalms, certain congruencies between Eusebius' works and the Hypomnema caught the eyes of the authors. In the current paper they proof their assumption that the work has to be given to Eusebius rather than Origen, because of its content and scope, its situation of manuscript tradition, its style and even its obvious reception of Origen's works. The paper is supplemented by a preliminary edition and translation of the work. [ABSTRACT FROM AUTHOR]