WoRMS taxon details
Nomenclatureoriginal description
Hulburt, E. M. (1957). The Taxonomy of Unarmored Dinophyceae of Shallow Embayments on Cape Cod, Massachusetts. <em>Biol. Bull. mar. biol. Lab. Woods Hole.</em> 112(2): 196-219., available online at https://doi.org/10.2307/1539198 [details]
basis of record
Guiry, M.D. & Guiry, G.M. (2025). AlgaeBase. <em>World-wide electronic publication, National University of Ireland, Galway.</em> searched on YYYY-MM-DD., available online at http://www.algaebase.org [details]
Taxonomytaxonomy source
S. Murray, M. Flø Jørgensen, N. Daugbjerg & L. Rhodes (2004) <i>Amphidinium</i> revisited. II. Resolving species boundaries in the <i>Amphidinium operculatum</i> species complex (Dinophyceae), including the descriptions of <i>Amphidinium trulla</i> sp. nov. and <i>Amphidinium gibbosum</i> comb. nov. J. Phycol. 40: 366-382. [details]
Ecologyecology source
Leles, S. G.; Mitra, A.; Flynn, K. J.; Tillmann, U.; Stoecker, D.; Jeong, H. J.; Burkholder, J.; Hansen, P. J.; Caron, D. A.; Glibert, P. M.; Hallegraeff, G.; Raven, J. A.; Sanders, R. W.; Zubkov, M. (2019). Sampling bias misrepresents the biogeographical significance of constitutive mixotrophs across global oceans. <em>Global Ecology and Biogeography.</em> 28(4): 418-428., available online at https://doi.org/10.1111/geb.12853 [details] Available for editors [request]
ecology source
Mitra, A.; Caron, D. A.; Faure, E.; Flynn, K. J.; Leles, S. G.; Hansen, P. J.; McManus, G. B.; Not, F.; Do Rosario Gomes, H.; Santoferrara, L. F.; Stoecker, D. K.; Tillmann, U. (2023). The Mixoplankton Database (MDB): Diversity of photo‐phago‐trophic plankton in form, function, and distribution across the global ocean. <em>Journal of Eukaryotic Microbiology.</em> 70(4)., available online at https://doi.org/10.1111/jeu.12972 [details] 
ecology source
Du Yoo, Y.; Jeong, H. J.; Kim, M. S.; Kang, N. S.; Song, J. Y.; Shin, W.; Kim, K. Y.; Lee, K. (2009). Feeding by Phototrophic Red-Tide Dinoflagellates on the Ubiquitous Marine Diatom<i>Skeletonema costatum</i>. <em>Journal of Eukaryotic Microbiology.</em> 56(5): 413-420., available online at https://doi.org/10.1111/j.1550-7408.2009.00421.x [details]
Otheradditional source
Tomas, C.R. (Ed.). (1997). Identifying marine phytoplankton. Academic Press: San Diego, CA [etc.] (USA). ISBN 0-12-693018-X. XV, 858 pp., available online at http://www.sciencedirect.com/science/book/9780126930184 [details]
additional source
Moestrup, Ø., Akselman, R., Cronberg, G., Elbraechter, M., Fraga, S., Halim, Y., Hansen, G., Hoppenrath, M., Larsen, J., Lundholm, N., Nguyen, L. N., Zingone, A. (Eds) (2009 onwards). IOC-UNESCO Taxonomic Reference List of Harmful Micro Algae., available online at http://www.marinespecies.org/HAB [details]
additional source
Liu, J.Y. [Ruiyu] (ed.). (2008). Checklist of marine biota of China seas. <em>China Science Press.</em> 1267 pp. (look up in IMIS) [details] Available for editors [request]
additional source
Chang, F.H.; Charleston, W.A.G.; McKenna, P.B.; Clowes, C.D.; Wilson, G.J.; Broady, P.A. (2012). Phylum Myzozoa: dinoflagellates, perkinsids, ellobiopsids, sporozoans, in: Gordon, D.P. (Ed.) (2012). New Zealand inventory of biodiversity: 3. Kingdoms Bacteria, Protozoa, Chromista, Plantae, Fungi. pp. 175-216. [details]
additional source
Steidinger, K. A., M. A. Faust, and D. U. Hernández-Becerril. 2009. Dinoflagellates (Dinoflagellata) of the Gulf of Mexico, Pp. 131–154 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College [details]
additional source
Hoppenrath, M.; Murray, S.; Chomerat, N.; Horiguchi, T.; Rhodes, L. (2023). Marine benthic dinoflagellates - their relevance for science and society. <em>Senckenberg book 88.</em> [details]
toxicology source
Rhodes L.L., Smith K.F., Munday R., Selwood A.I., McNabb P.S., Holland P.T., Bottein M.-Y. (2009). Toxic dinoflagellates (Dinophyceae) from Rarotonga, Cook Islands. Toxicon, 56:751-758. [details]
toxicology source
Yasumoto T., Seino N., Murakami Y. & Murata M. 1987. Toxins produced by benthic dinoflagellates. Biol. Bull. 172: 128-131. [details]
From editor or global species database
LSID urn:lsid:algaebase.org:taxname:47680 [details]From regional or thematic species database
Description Cells oval, dorsoventrally flattened. Epicone crescent-shaped, clearly deflected towards the left. Cingulum beginning 0.3–0.4 of the cell length from the apex, midway across the ventral face, ascending initially, then descending on the ventral side; distal end 0.5 of the cell length from the apex. Sulcus beginning 1–2 μm below the proximal end of the cingulum, continuing to the posterior. Nucleus rounded, in the hypocone. Division by binary fission in the motile cell. [details]
Harmful effect Haemolysins have been isolated and fish toxicity is also known. [details]
Identification Similar species: Amphidinium massartii. Remarks: There are at least 4 distinct genotypes of this species (Murray et al. 2004, Murray et al. 2012). [details]
Verified sequences xxx [details]Unreviewed
Diet general for group: both heterotrophic (eat other organisms) and autotrophic (photosynthetic) [details]
Habitat pelagic [details]
Importance General: known for producing dangerous toxins, particularly when in large numbers, called "red tides" because the cells are so abundant they make water change color. Also they can produce non-fatal or fatal amounts of toxins in predators (particularly shellfish) that may be eaten by humans. [details]
Predators marine microorganisms and animal larvae [details]
Reproduction general for group: both sexual and asexual [details]
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