original description(ofOdontidium mutabile var. mutabile W. Smith, 1856)Smith, W. (1856). Synopsis of British Diatomaceae. John Van Voorst, London 1856., 2: 107 pp., pls. 32-60, 61-62, A-E. page(s): p. 17; pl. 34, fig. 290 [details]
new combination referenceHeiberg, P.A.C. (1863). Conspectus criticus Diatomacearum Danicarum. Kritisk Oversigt over De Danske Diatomeer. Wilhelm Priors Forlag, Kjøbenhavn., 135 pp., 6 pls, available online athttps://doi.org/10.5962/bhl.title.68738 page(s): p. 58 [details]