Invasion

Invasion Description

Type Locality: Helgoland/Germany/North Sea (1847, Sato 2013; Villalobos-Guerrero and Carrera-Parra 2015)

Geographic Extent

England-France/English Channel (Pettibone 1963); Denmark/North Sea (Pettibone 1963); Helgoland/Germany/North Sea (1847, Sato 2013); Wilhelmshaven/Germany/Banter See, North Sea (Sato 2013, Villalobos-Guerrero and Carrera-Parra 2015); Dunkerque/France/English Channel (1978, Dewarumez et al. 1992, 1 specimen in thermal effluent); Netherlands/Rhine Delta (Wolff 1973, widespread, common)