• Tetraedron regulare var. incus: Teiling (1912)
• Tetraedron incus var. irregulare : G.M. Smith
• Chlorotetraëdron incus: Teiling, Kovácik (1985), Komárek

Distribution:as Tetraedron regulare var. incus Teiling

South-west Asia: Pakistan (Hussain et al. 2010). Asia: China (Hu & Wei 2006). Australia and New Zealand: Queensland (Day et al. 1995).

as Tetraedron incus (Teiling) G.M.Smith

Europe: Baltic Sea (Hällfors 2004), Britain (John & Tsarenko 2002, Whitton et al. 2003), Romania (Caraus 2002). South America: Brazil (Menezes 2010). Australia and New Zealand: Northern Territory (Day et al. 1995).

as Chlorotetraedron incus (Teiling) Komárek & Kovácik

Europe: Black Sea (BSPC Editorial Board 2014), Germany (Täuscher 2014), Romania (Caraus 2012), Spain (Cambra Sánchez, Álvarez Cobelas & Aboal Sanjurjo 1998, Pérez, Maidana & Comas 2009, Pérez, Comas & Maidana 2010, Pérez, Comas & Maidana 2010). South-east Asia: Singapore (Pham et al. 2011).

Das Phytoplankton des Susswassers: Systematik und Biologie 7.T., Halfte. Chlorophyceae (Grunalgen), Ordnung: Chlorococcales / von J. Komarek, B. Fott., Stuttgart : E. Schweizerbart'sche Verlagsbuchhandlung, Huber-Pestalozzi G., 1983, 1044

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

Biovolumes and size-classes of phytoplankton in the Baltic Sea, HELCOM Balt.Sea Environ. Proc. No. 106, Olenina I., Hajdu S., Edler L., Andersson A., Wasmund N., Busch S., Göbel J., Gromisz S., Huseby S., Huttunen M., Jaanus A., Kokkonen P., Ledaine I. and Niemkiewicz E., 2006, 1-144