1.
Boccardia proboscidea and Boccardiella hamata (Polychaeta: Spionidae: Polydorinae), introduced mud worms new for the North Sea and Europe, respectively
Schizobrachiella verrilli (Bryozoa, Cheilostomata) new to Europe
Opmars van de penseelkrab Hemigrapsis penicillatus De Haan, 1935 in Nederland