Baltic Sea as species in 2005 and 2018 respectively, having formerly been confused with more widespread relatives. The tiny Copenhagen cockle ("Parvicardium hauniense"), a rare mussel, is sometimes considered endemic, but has now been recorded in the Mediterranean. However, some consider non-Baltic records to be misidentifications of juvenile lagoon cockles ("Cerastoderma glaucum"). Several widespread marine species have distinctive subpopulations in the Baltic Sea adapted to the low salinity, such as the Baltic Sea forms of the Atlantic herring and lumpsucker, which are smaller than the widespread forms in the North Atlantic. A peculiar feature of the fauna is that it contains a
Islands of the North Atlantic in the North Atlantic Ocean is Ireland. Great Britain is in fact in between the Irish Sea and The North Sea. It has been used particularly in the context of the Northern Irish peace process during the negotiation of the Good Friday Agreement, as a neutral name for the proposed council. One feature of this name is that IONA has the same spelling as the island of Iona which is off the coast of Scotland but with which Irish people have strong cultural associations. It is therefore a name with which people of both main islands might identify. Taoiseach Bertie