CNIDARIA INTRODUCED TO THE NETHERLANDS

Cordylophora caspia (Pallas, 1771)

Garveia franciscana (Torrey, 1902)

Gonionemus vertens A. Agassiz, 1862

Haliplanella lineata (Verrill, 1869)

Nemopsis bachei (L. Agassiz, 1849)

Thieliana navis (Millard, 1959)