original description
Locard, A. (1893). Monographie des mollusques tertiaires terrestres et fluviatiles de la Suisse. Deuxième partie. <em>Mémoires de la Société Paléontologique Suisse.</em> 19, 131-275.
page(s): 253, pl. 12, fig. 16 [details]
additional source
Mayer-Eymar, K. (1887). Systematisches Verzeichniss der Kreide- und Tertiär-Versteinerungen der Umgegend von Thun nebst Beschreibung der neuen Arten. <em>Beiträge zur geologischen Karte der Schweiz, Beilage.</em> 24(2): i-xxviii + 1-128.
page(s): 81, pl. 4, fig. 13 [details]
From editor or global species database
Status Locard (1893) listed the original spelling of d'Orbigny (1850) but still changed the name to rouyi. According to ICZN Art. 33.2.1 this qualifies as an unjustified emendation. Cyrena rouyi was before mentioned already by Mayer-Eymar (1887), but he did not list the original spelling or discuss it in anyway, making this an incorrect subsequent spelling. [details]