Translated from the Dutch marine biologists of Stichting ANEMOON on Sunday 10 November 2013:
The sea spider Ammothea hilgendorfi, originally from the Pacific Ocean, has now reached our coastal waters after it had reached the Italian and British coastal waters. This summer, recreational divers and biologists have found multiple individuals of this exotic species in the Oosterschelde estuary. The beautifully coloured and relatively large sea spider may have arrived here through international seafood shipments. The specimens found show clearly that they feel at home and reproduce.
See also here.