Table S25. Check-list of the Class Ascidiacea (Subphylum Uranochordata, Phylum Cordata)
S/C: solitary or colonial species. Distribution: M, Mediterranean (both basins); WM, western Mediterranean; EM, eastern Mediterranean; AM, Atlantic-Mediterranean (present in both Mediterranean basins); AWM, Atlantic and western Mediterranean; AEM, Atlantic and eastern Mediterranean; C, circumtropical or cosmopolitan; L, possible Lessepsian migrant, present at least in Red Sea and eastern Mediterranean. Species marked with asterisk are possible recent introductions in the Mediterranean.