Gregory, W. (1854). Notice of the new forms and varieties of known forms occurring in the diatomaceous earth of Mull; with remarks on the classification of the Diatomaceae. Quarterly Journal of Microscopical Science, London, 2: 90-100, pl. IV, available online athttps://doi.org/10.1242/jcs.s1-2.6.90 page(s): p. 99 [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. Navicula exigua Gregory, 1854. Accessed at: https://www.diatombase.org/aphia.php?p=taxdetails&id=149465 on 2026-08-07
original descriptionGregory, W. (1854). Notice of the new forms and varieties of known forms occurring in the diatomaceous earth of Mull; with remarks on the classification of the Diatomaceae. Quarterly Journal of Microscopical Science, London, 2: 90-100, pl. IV, available online athttps://doi.org/10.1242/jcs.s1-2.6.90 page(s): p. 99 [details]
additional sourceHällfors, 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]
Present Inaccurate Introduced: alien Containing type locality
Unreviewed
Authority (Gregory) Grunow in Van Heurck, 1880 in Hällfors (2004) [details] Authority (W. Greg.) Grunow in ITIS. There is confusion about the two different authorities, they are used simultanously. [details] ValidityNavicula exigua (Gregory) Grunow in Van Heurck, 1880 is considered as a synoym of Placoneis exigua[details]