Invasion

Invasion Description

1st record: Southern Finland/lower Gulf of Bothnia (Some of these records may refer to M. neglecta (Sikorski and Bick 2004; Bastrop and Blank 2006;

Geographic Extent

Southern Finland/lower Gulf of Bothnia; Aland Islands/Sweden/lower Gulf of Bothnia; Stockholm Archipleago/Sweden/Baltic Sea (Norrko et al. 2011, Marenzellaria spp.; Granberg et al. 2008, M. neglecta); Tvärminne Zoological Station/Finland/Baltic Sea (2014, Kauppi et al. 2018. 59°21?100, 18°15?450);