original description
(of Cyrena unionides Dunker, 1843 †) Dunker, W. (1843). Ueber den norddeutschen sogenannten Wälderthon und dessen Versteinerungen. <em>Programm der höheren Gewerbschule in Cassel. Schulcursus von Michaelis 1843 bis Ostern 1844.</em> pp. 1-46.
page(s): 26 [details]
From editor or global species database
Status According to Huckriede (1967), who inspected material from the type area, this species is a nomen dubium. The combination with Leptesthes by Kolesnikov (1980) is questionable. [details]