original description
Normand, N. A. J. (1844). Notice sur plusieurs nouvelles espèces de Cyclades découvertes dans les environs de Valenciennes. Paris; Valenciennes, A., 8 pp., plate 1. , available online at http://biodiversitylibrary.org/page/35730160
page(s): 7, figs. 5-6; note: as Cyclas ryckholtii. [details]
basis of record
Mackie, G. L. (2007). Biology of freshwater corbiculid and sphaeriid clams of North America. <em>Ohio Biological Survey Bulletin New Series.</em> 15 (3: i-ix): 1-436. [details]
additional source
InvertEBase. (2015). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase project (invertebase.org). [details]
From editor or global species database
Etymology Named for Baron de Ryckholt, Major of Artillary in the Belgian army [details]