IDENTIFICATION GUIDE TO THE PLANKTONIC POLYCHAETE LARVAE AROUND THE ISLAND OF HELGOLAND (GERMAN BIGHT)

The purpose of this work is to provide the means of identifying the pl anktonic larvae of the polychaete species appearing in the plankton ar ound the island of Helgoldnd (North Sea). During a three-year survey i n this area, the larvae of 54 species out of 24 families belonging to the orders Orbiniida, Spionida, Capitellida, Phyllodocida, Oweniida, T erebellida, Sabellida and the former Archiannelida have been recorded. Illustrated keys to the families, genera and species are presented. T o facilitate the identification, additional descriptions and informati on about the seasonal appearance of the species are given. 60189642