Genus Anatina Schumacher, 1817: 126 . [= Labiosa Möller, 1832 (ex Schmidt MS) (unnecessary n.n. pro Anatina Schumacher, 1817, not preocupied by Anatines (vernacular) Lamarck in Bosc, 1816); Cypricia Gray, 1847; Leucoparia Mayer, 1867, (nom. pro Cypricia)] Type species. Anatina pellucida Schumacher, 1817 (= Mactra anatina Spengler, 1802), [monotypy]. Diagnosis. Shell fragile, posterodorsal area with a siphonal gap and defined by a line from umbones to posterior end; hinge with conspicuous cardinal teeth and rudimentary laterals. Distribution. Atlantic and Pacific coast of the American continent.Published as part of Signorelli, Javier H. & Pastorino, Guido, 2012, Taxonomic revision of Brazilian Mactridae Lamarck, 1809 (Bivalvia: Cardiida), pp. 30-53 in Zootaxa 3245 on page 45, DOI: 10.11646/zootaxa.3245.1.2, http://zenodo.org/record/654486