original descriptionHickie, W.J. (1874). On Mr. Singleton's observations. Monthly Microscopical Journal, 12: 2989-291 page(s): p. 290 [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