introduced ASCIDIACEA (sea squirts)
   

                                                                       

Styela clava Herdman, 1882

publications

Buizer, D.A.G. 1980. Explosive development of Styela clava Herdman, 1882 in The Netherlands after its introduction (Tunicata, Ascidiacea). - Bull.Zoöl.Mus.Univ.Amsterdam 7: 181-185.