The Roman Map of Britain Ricina? Rathlin Is.?

Atina (R&C 293) next

If Nagnatia (R&C 290) is an island of the Irish Nagnatae, then Atina might be an island of the Irish Autinoi Autini. If so, an island in Galway Bay seems indicated, Inish More of the Aran Islands or Gorumna are candidates.