First record of Harmothoe aspera (Hansen, 1879) (Polychaeta: Polynoidae) in the Dutch North Sea

Harmothoe aspera has been recorded in surveys off the Strait of Georgia, the Skagerrak, and the Barents, Mediterranean and Japanese sea. The recorded depth ranged from circa 48 m to circa 1500 m. This is the first report of H. aspera in the Dutch Exclusive Economic Zone (EEZ), and the first report in a depth range between15 and 20 m.