The Pectinoidea (Bivalvia, Propeamussiidae and Pectinidae) of Walters Shoal, with descriptions of six new species

Nine species of Pectinoidea Rafinesque, 1815 (six Propeamussiidae Abbott, 1954, three Pectinidae Rafinesque, 1815) are herein reported from Walters Shoal, south of Madagascar. Six species are described as new to science and are considered endemic to this region, whereas three are well-known species. The new species are: Parvamussium cancellinum n. sp., Parvamussium laetum n. sp., Parvamussium pustulatum n. sp., Cyclopecten broii n. sp., Cyclopecten simardi n. sp. and Talochlamys janiqueae n. sp. The previously known species are: Propeamussium meridionale (E. A. Smith, 1885), Pecten sulcicostatus G. B. Sowerby II, 1842 and Cryptopecten bullatus Dautzenberg & Bavay, 1912. In addition, Chlamys jousseaumei Bavay, 1904 is transferred from Veprichlamys Iredale, 1929 to Talochlamys Iredale, 1929.