Invasion

Invasion Description

1st Record? England/English Channel (Alder and Hancock 1868, as S. variablilis, Van Name 1945; Kott 1985)

Geographic Extent

1st Record? England/English Channel (Alder and Hancock 1868, as S. variablilis, Van Name 1945; Kott 1985); N of Crab Rock, Sherkin Island, Cork/Ireland/Celtic Sea (1975, 51.457 N, -9.442 EWoRMS 2012, )