The Drimmon (aka Droimeann) is white-backed and considered an authentic color variety – and it's rare.
The Drimmon is possibly a Longhorn descendant or a cross of the Kerry and the Irish Moiled.
A Drimmon named 'Big Bertha' is in the Guinness Book of World Records for reaching the age of 48years and eight months – and birthing 39 calves!
(Gaelic) droimeann = white-backed
You can also go to:
The Cow Wall® of Ireland
My Daily Cow® Ireland and read about other Irish cattle breeds.