(ofEupodiscus crassus W.Smith, 1853)Smith, W. (1853). Synopsis of British Diatomaceae. John Van Voorst, London 1853., 1: 89 pp., pl. 1-31. page(s): p. 24; pl. 4, fig. 41 [details]
Kociolek, J.P.; Blanco, S.; Coste, M.; Ector, L.; Liu, Y.; Karthick, B.; Kulikovskiy, M.; Lundholm, N.; Ludwig, T.; Potapova, M.; Rimet, F.; Sabbe, K.; Sala, S.; Sar, E.; Taylor, J.; Van de Vijver, B.; Wetzel, C.E.; Williams, D.M.; Witkowski, A.; Witkowski, J. (2026). DiatomBase. Actinocyclus crassus (W.Smith) Ralfs ex Pritchard, 1861. Accessed at: https://www.diatombase.org/aphia.php?p=taxdetails&id=162775 on 2026-07-17
original description(ofEupodiscus crassus W.Smith, 1853)Smith, W. (1853). Synopsis of British Diatomaceae. John Van Voorst, London 1853., 1: 89 pp., pl. 1-31. page(s): p. 24; pl. 4, fig. 41 [details]
basis of recordHällfors, G. (2004). Checklist of Baltic Sea Phytoplankton Species (including some heterotrophic protistan groups). <em>Baltic Sea Environment Proceedings.</em> No. 95: 210 pp., available online athttp://helcom.fi/Lists/Publications/BSEP95.pdf[details] Available for editors [request]
additional sourceHartley, B., Ross, R. & Williams, D.M. (1986). A check-list of the freshwater, brackish and marine diatoms of the British Isles and adjoining coastal waters. <em>Journal of the Marine Biological Association of the United Kingdom.</em> 66(3): 531-610., available online athttps://doi.org/10.1017/s0025315400042235[details] Available for editors [request]
source of synonymyHällfors, G. (2004). Checklist of Baltic Sea Phytoplankton Species (including some heterotrophic protistan groups). <em>Baltic Sea Environment Proceedings.</em> No. 95: 210 pp., available online athttp://helcom.fi/Lists/Publications/BSEP95.pdf[details] Available for editors [request]
new combination referencePritchard, A. (1861). A history of infusoria, living and fossil: arranged according to Die infusionsthierchen of C.G. Ehrenberg; containing colored engravings, illustrative of all the genera, and descriptions of all the species in that work, with several new ones; to which is appended an account of those recently discovered in the chalk formations. xii. Edition IV, revised and enlarged by J.T. Arlidge, W. Archer, J. Ralfs, W.C. Williamson and the author. London, Whittaker and Co., 1861., xiii + 968 pp., 40 pls. page(s): p. 835 [details]