• Navicula amphora : Ehrenberg (1832)
• Frustulia ovalis : Kützing (1833)
• Amphora ocellata : Ehrenberg (1838)
• Amphora amphora : (Ehrenberg) Pantocsek (1902)

Solitary. The large frustule has an elliptical shape with the truncated extremities. In girdle view the valves appear crescent-shaped. In valve view the dorsal valve is curved while the ventral valve is slightly concave. The raphe is biarcuate and there are striae on both sides.

Marine and freshwater environments.

Distribution:  in Europe: Finland (Weckstrom & Juggins, 2006), Germany (Bahulikar & Kroth, 2007), Romania (Caraus, 2002), Spain (Cantoral-Uriza & Aboal, 2008), Turkey (Ersanli & Gönülol, 2006) in North America: Nova Scotia (Kim, Garbary and McLachlan, 2004), USA (Ettl & Gärtner, 1995); in South-west Asia: Iran (Jamaloo et al.. 2006), Pakistan (Leghari et al., 2005); in Asia: China (Hu and Wei, 2006); in Australia and New Zealand: New South Wales (Day et al., 1995), Victoria (Day et al. 1995), Australia (Day et al., 1995); in the Pacific Ocean: Hawaiian Islands (Sherwood, 2004); in the Antarctic (Cunningham & McMinn, 2004).

The algae of Romania., Studii si Cercetari, Universitatea Bacau, Biologie 7, Caraus I., 2002, 1-694

Bibliographic check-list of non-marine algae in Australia., Flora of Australia Supplementary Series 4, Day S.A., Wickham R.P., Entwisle T.J., Tyler P.A., 1995, 1-276

Phytoplankton dynamics in Pomquet Harbour, Nova Scotia: a lagoon in the southern Gulf of St., Lawrence. Phycologia 43, Kim K.Y., Garbary D.J., McLachlan J.L., 2004, 311-328.

The influence of natural environmental factors on benthic diatom communities from the Windmill Islands, Antarctica., Phycologia 43:, Cunningham L., McMinn A., 2004, 744-755

Limnological study of Pir Bukhari (Karsaz) and Manghopir warm springs, Karachi, Sindh, Pakistan., Int. J. Phycol. Phycochem. 1(2):, Leghari S.M., Khuhawar M.Y., Jahangir T.M., Leghari A., 2005, 151-158

Syllabus der Boden-, Luft- und Flechtenalgen., Stuttgart: Gustav Fischer, Ettl H., e Gärtner G., 1995, pp. i-vii,1-721

Coastal diatom-environment relationships from the Gulf of Finland, Baltic Sea ., Journal of Phycology 42:, Weckstrom K., Juggins S., 2006, 21-35.

Localization of EPS components secreted by freshwater diatoms using differential staining with fluorophore-conjugated lectins and other fluorochromes., European Journal of Phycology 42(2):, Bahulikar R.A., Kroth P.G., 2007, 199-208, 22 figs, 2 tables

Checklist of Baltic Sea Phytoplankton Species. Baltic Sea Environment Proceedings No. 95, Helsinki Commission Baltic Marine Environment Protection Commission, Hällfors G., 2004,

Die kieselschaligen Bacillarien oder Diatomeen., Nordhausen: Zu finden bei W. Köhne., Kützing, 1844, pp. [i-vii], [1]-152, pls 1-30.

Study of diatoms flora in Jajrood river., Sciences and Technology of Environment 26, Jamaloo F., Falahian F., Nejadsatari T., Majd, 2006, 98-112.

The freshwater algae of China. Systematics, taxonomy and ecology, China: www.sciencep.com., Hu H., Wei Y., 2006, 1-1023

Diatomeas (Bacillariophyceae) del marjal Oliva-Pego, (Comunidad Valenciana, España)., Anales Jardín Botánico de Madrid 65(1), Cantoral-Uriza E.A., & Aboal M., 2008, 111-128

A study on the phytoplankton of Lake Simenit, Turkey., Cryptogamie, Algologie 27:, Ersanli E., Gönülol A., 2006, 289-305, 28 figs.

Bibliographic checklist of the nonmarine algae of the Hawaiian Islands. Records of the Hawaii Biological Survey for 2003, Bishop Museum Occasional Papers 80, Sherwood A.R., 2004, 1-26