Donarathi

A race of Xenos that took part in am Imperium-led temporary alliance against the Tyranids of Hive Fleet Jormungandr. Seeing as to how the Imperial Commander turned on one of the races in this alliance as soon as the threat of the Tyranids was gone, the Cimmeriac, it's likely the Donorathi were also betrayed and murdered by the Imperium.