Gelbis

GELBIS a branch of the Mosel, mentioned by Ausonius in his poem (Mosella, 5.359):-- Te rapidus Gelbis, te marmore clarus Erubrus,--NobilibusGelbis celebratus piscibus.

The Gelb may be the Kill, which joins the Mosel on the left bank, below Augusta Trevirorum (Trier, Trèves).