Additional data are given on a keratine horn with its bony horn pit, together with a description of a second keratine horn. Both finds have to be ascribed to the Auerochs, Bos primigenius BOJANUS, 1827. The first specimen, now in the Stolzenbach collection, was found between the Brown Ridge and Smith’s Knoll, while the second fossil (Van Noort collection) was collected near the wreck of the ”Nautilus”; these sites lie in the southern North Sea.