Pectinoidea (Bivalvia, Propeamussiidae & Pectinidae) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern region of the North Atlantic Ocean. CANCAP-Project contribution No. 127

Twenty-seven species of the Pectinoidea (6 Propeamussiidae and 21 Pectinidae), collected during several expeditions in the southeastern region of the North Atlantic Ocean, are listed, with notes on geographical and bathymetrical distributions, nomenclature and systematics. One of these is a new record for the tropical eastern Atlantic Ocean (Pectinidae: Pseudohinnites sp. cf. adamsi) and one a new species (Propeamussiidae: Cyclopecten capeverdensis spec. nov.). The following taxa are synonymized: Karnekampia Wagner, 1988 (= Pseudamussium Mörch, 1853), Propeamussium centobi Schein, 1989 [= Propeamussium lucidum (Jeffreys, in Thomson, 1873)], Pecten (Cyclopecten) commutabilis Fenaux, 1944 [= Similipecten similis (Laskey, 1811)]. New combinations are Pseudamussium alicei (Dautzenberg & H. Fischer, 1897), Bractechlamys corallinoides (d’Orbigny, in Webb & Berthelot, 1839), Talochlamys abscondita (P. Fischer, in Locard, 1898) and Talochlamys pusio (Linnaeus, 1758).