Invasion

Invasion Description

The date of introduction in the Western Mediterranean is unknown, but was probably in the 19th century.

Geographic Extent

"Western Mediterranean"; Genoa/Italy/Genoa Harbor, Ligurian Sea (Mor et al. 1971-Biological Abstracts); Sete/France/Etang de Thau (Ecologistes de l'Euzière, http://www.educ-envir.org/~euziere/science/IMG/Invertebre-clef.pdf)