Distribution

LOCUS TYPICUS: London

Marine environment: Camargue, S France (De Ridder, 1960a & 1961); Bay of Bothnia in Bothnian Sea (Sandström, 1979); Rovigno (Wulfert 1942a); Lakes C Sweden (Pejler, 1965 & 1972); Sea, brackish and freshwater pools in S Finland (Björklund, 1972a); Coast of S Finland (Eriksen, 1969); Fjord Himmerfjärden, N Baltic Sea, Sweden (Johansson, 1983); Barther Bodden, S Baltic Sea, Germany (Vietinghoff et al., 1984); Neva Bay, Gulf of Finland, R.F. (Telesh, 1986); Brackish water bay near Porvoo, S Finland (Järnefelt, 1964); Brackish waters in the Lorraine Orientale, Fr. (De Ridder, 1969a); Brackish waters near Bruges, Belgium (De Ridder & Verheye, 1980); Poland (Adamkiewicz-Choynacka & Rozanska, 1990); Scandinavian coastal waters (Thane-Fenchel, 1968); Black Sea (Rudescu, 1961); Gulf of Bothnia, G. of Finland, G. of Riga (Berzinš, 1960); Poland (Adamkiewicz-Choynacka & Rozanska, 1990); Germany (Althaus 1957a); Belgium (De Pauw 1969; De Ridder 1957a, b, 1981); British Channel (De Ridder 1959); Lorraine orientale – France (De Ridder 1968); Delta del Ebro (Fores et al. 1986); rock-pools in theTvaminne archipelago, southern Finland (Godske Bjorklund 1972b); Germany (Hauer 1925 1957); Finland (Lagus & Lindholm 2000); Baltic Sea (Meiners et al. 2002); Germany (Remane 1929; Rentz 1940; Schwarz 1955/1956; Schwarz 1959, 1962); Chech Republica (Sladecek 1955); Southern Baltic Bay (Thiel 1996); Northern Baltic Sea (Viitasalo et al. 1995); Netherland (Wibaut-Isebree Moens 1954); Germany (Ahlrichs 2003).

Continental waters: everywhere