original descriptionGran, H.H. (1900). Bemerkungen über einege Planktondiatomeen. Nyt Magazin for Naturvidenskaberne, 38(2): 103-128, pl. IX[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]