Deep-water Sipuncula from the eastern Atlantic Ocean

Abstract
Over 9000 recently collected sipunculans from the deeper waters of the eastern Atlantic Ocean from 80° N to 34° S are discussed. Brief notes on their morphology and a key to the 31 species are presented. The existence of zoogeographical barriers at slope depths between the Norwegian and European Basins, within the Cape Verde Basin (a diffuse one), and between the Angolan and Cape Basins are noted. Most species (17) are very widely distributed (north of 40° N and south of 15° N). Most of those with wide latitudinal ranges also have wide vertical ranges. Two slope species occur on the shelf in upwelling areas off West Africa. These analyses are based on just these recent collections, i.e. disregarding earlier records.

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