Higher Classification: > Kingdom Chromista > Subkingdom Harosa > Infrakingdom Alveolata > Phylum Myzozoa > Subphylum Dinozoa > Infraphylum Dinoflagellata > Class Dinophyceae > Subclass Peridiniphycidae > Order Gonyaulacales > Family Pyrocystaceae > Subfamily Ostreopsidoideae

Alexandrium Halim, 1960

Rank: Genus
Taxon Status: accepted

Relationships towards this taxon

Genus group names

*Gessnerium*	Halim ex Halim, 1967	synonym
*Protogonyaulax*	F.J.R.Taylor, 1979	synonym

Children

Alexandrium affine (H.Inoue & Y.Fukuyo) Balech, 1995
Alexandrium balechii (Steidinger) Balech, 1995
Alexandrium catenella (Whedon & Kofoid) Balech, 1985
Alexandrium foedum Balech, 1990
Alexandrium leei Balech, 1985
Alexandrium minutum Halim, 1960
Alexandrium monilatum (J.F.Howell) Balech, 1995
Alexandrium ostenfeldii (Paulsen) Balech & Tangen, 1985
Alexandrium pseudogonyaulax (Biecheler) Horiguchi ex K.Yuki & Y.Fukuyo, 1992
Alexandrium tamarense (Lebour) Balech, 1995
Alexandrium taylorii Balech, 1994

Vernaculars (+) (-)

Japanese: アレキサンドリウム属

Literature

original description	Halim Y. (1960). Alexandrium minutum, n. gen. n. sp. dinoflagellé provocant des “eaux rouges”. Vie et Milieu. 11: 102-105.
basis of record	Gómez, F. (2005). A list of free-living dinoflagellate species in the world's oceans. Acta Bot. Croat. 64(1): 129-212.
additional source	Brandt, S. (2001). Dinoflagellates, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 47-53
additional source	Guiry, M.D. & Guiry, G.M. (2025). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. searched on YYYY-MM-DD.

Genbank

Taxonomy

Published in AlgaeBase

Citation

Guiry, M.D. & Guiry, G.M. (2025). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Alexandrium Halim, 1960. Via: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvantidis, C.; Appeltans, W. (2011) European Register of Marine Species, Accessed through PESI at http://www.eu-nomen.eu/portal/taxon.php?GUID=urn:lsid:marinespecies.org:taxname:109470