Anacanthes Ehrenberg [C. G.] in van der Hoeven 1832:179 Masc. Raja orbicularis Bloch & Schneider 1801. Type by monotypy. Type species inferred from 'Les Anacanthes' of Ehrenberg in Cuvier 1829:400 [ref. 995] which appeared with vernacular name only. Not; preoccupied by Anacanthus Gray 1830. Unneeded replacement by Rhachinotus Cantor 1849. •Synonym of Paratrygon Duméril 1865. 1°Homonym. Current status: Synonym of Paratrygon Duméril 1865. Potamotrygonidae: Potamotrygoninae.