In the 9th century also the Ugrians are supposed to have left their Ural abodes and to have traversed S.E.
Russia, even then were subdivided into Ugrians, Permyaks, Bulgarians and Finns proper, who drove back the previous Lapp population from what is now Finland, and about the 7th century penetrated to the S.
of Vyatka, the Permyaks in Perm, the Syryenians or Zyryans in Vologda, Archangel, Vyatka and Perm; (e) the Ugrians, or Trans-Uralian Finns, including the Voguls on both slopes of the Urals, the Ostiaks in Tobolsk and partly in Tomsk, and the Magyars, or Ugrians.
The Ostiaks know them under the names of Orghoy, or Workho, both of which recall the Ugrians; the name of Hui is also in use among the Ostiaks, and that of Yaron among the Syrgenians.
Castren considers them as a mixture of Ugrians with Mongolians, and Zograf as brachycephalic Mongolians.