A new Scutarcopagia Pilsbry, 1918 species (Bivalvia, Tellinidae) from Indonesia, with notes on other species in this genus

A species of Scutarcopagia Pilsbry, 1918 from Indonesia and the Philippines is described as new species. Other species in this genus are discussed. S. elizabethae (Pilsbry, 1918) from Hawaii and S. delicatula (Selli, 1974) from the Red Sea are at present regarded as synonyms of S. scobinata (Linnaeus, 1758) but herein restored as valid species. The group of elongated species, which are now also recognised as part of the genus Scutarcopagia, have been reclassified into the genus Tellinella Mörch, 1853. The genus-group name Smithsonella Afshar, 1969, which has as type species one of those elongated species, is a synonym of Tellinella. Tellina (Arcopagia) cratitia A. A. Gould, 1861 is demonstrated to be a nomen dubium.