Traits Taxon list
Aptea polymorpha Eisenack †
Ceratium arcticum (Ehrenberg) L.Maggi, 1880 accepted as Tripos arcticus (Vanhöffen) F.Gómez, 2013
Ceratium axiale Kofoid, 1907
Ceratium belone Cleve, 1900 accepted as Tripos belone (Cleve) F.Gómez, 2013
Ceratium brachyceros Daday, 1907
Ceratium breve (Ostenfeld & Schmidt) Schröder, 1906 accepted as Tripos brevis (Ostenfeld & Johannes Schmidt) F.Gómez, 2013
Ceratium brevearcuatum Bohm, 1976
Ceratium brevicorne A.Hempel, 1896
Ceratium candelabum
Ceratium carolinianum (Bailey) Jörgensen, 1911
Ceratium carolinianum var. elongatum Skuja, 1964
Ceratium contrarium (Gourret) Pavillard, 1905 accepted as Tripos contrarius (Gourret) F.Gómez, 2013
Ceratium cornutum (Ehrenberg) Claparède & J.Lachmann, 1859
Ceratium denticulatum (Jörgensen) Paulsen, 1931
Ceratium divaricatum (Lemmermann) Kofoid, 1908
Ceratium divaricatum var. balechii (Maeve del Castillo, Okolodkov & Zamudio) Hernández-Becerril, 2004
Ceratium furcoides (Levander) Langhans, 1925
Ceratium fusus (Ehrenberg) Dujardin, 1841 accepted as Tripos fusus (Ehrenberg) F.Gómez, 2013
Ceratium fusus var. concavum Gourret, 1883 (uncertain > unassessed )
Ceratium fusus var. fusus (Ehrenberg) Dujardin, 1841
Ceratium fusus var. schuetti Lemmermann, 1889
Ceratium fusus var. seta (Ehrenberg) E.J.F.Wood, 1954 accepted as Tripos seta (Ehrenberg) F.Gómez, 2013
Ceratium gravidum Gourret, 1883 accepted as Tripos gravidus (Gourret) F.Gómez, 2013
Ceratium gravidum var. praeolongum Lemmermann, 1899
Ceratium hexacanthum Gourret, 1883 accepted as Tripos hexacanthus (Gourret) F.Gómez, 2013
Ceratium hexacanthum f. hiemale Pavillard
Ceratium hexacanthum f. pavillardii (Rampi) Sournia, 1968
Ceratium hirundinella (O.F.Müller) Dujardin, 1841
Ceratium hirundinella f. austriacum (Zederbauer) Bachmann, 1911
Ceratium hirundinella f. brachyceroides Schröder, 1920
Ceratium hirundinella f. carinthiacum (Zederbauer) Bachmann, 1911
Ceratium hirundinella f. piburgense (Zederbauer) Bachmann, 1911
Ceratium hirundinella f. robustum Amberg, 1903
Ceratium hirundinella f. scoticum Bachmann, 1911
Ceratium hirundinella f. silesiacum Schröder, 1918
Ceratium hirundinella f. tridenta Carty, 2014
Ceratium hirundinella f. yunnanense Authority unknown
Ceratium hirundinella var. piburgense (Zederbauer) Bachmann, 1911
Ceratium horridum (Cleve) Gran, 1902 accepted as Tripos horridus (Cleve) F.Gómez, 2013
Ceratium horridum var. buceros (Zacharias) Sournia, 1966
Ceratium horridum var. horridum (Cleve) Gran, 1902
Ceratium horridum var. molle (Kofoid) Jörgensen, 1911
Ceratium lineatum (Ehrenberg) Cleve, 1899 accepted as Tripos lineatus (Ehrenberg) F.Gómez, 2013
Ceratium longirostrum Gourret, 1883 accepted as Tripos longirostrum (Gourret) Hallegraeff & Huisman, 2020
Ceratium massiliense (Gourret) Karsten, 1906 accepted as Tripos massiliensis (Gourret) F.Gómez, 2013
Ceratium massiliense f. armatum (Karsten) Schiller, 1937
Ceratium monoceras Temponeras, 2000
Ceratium pacificum E.J.F.Wood, 1963
Ceratium patentissimum Ostenfeld & Johannes Schmidt, 1901
Ceratium pentagonum Gourret, 1883 accepted as Tripos pentagonus (Gourret) F.Gómez, 2013
Ceratium pentagonum var. tenerum Jorgensen, 1920
Ceratium pleuroceras Schrank, 1793
Ceratium porrectum Karsten, 1907
Ceratium quinqueforme Gourret, 1883 (uncertain > unassessed )
Ceratium rhomvoides B.Hickel, 1988
Ceratium seta (Ehrenberg) W.S.Kent, 1881
Ceratium setaceum Jørgensen, 1911 accepted as Tripos setaceus (Jørgensen) F.Gómez, 2013
Ceratium tenue Ostenfeld & Schmidt, 1901
Ceratium tenue var. buceros Balech, 1988
Ceratium tenue var. tenissimum (Kofoid) Graham & Bronikovsky, 1944
Ceratium tenue var. tenue (Ostenfeld & Schmidt) Jörgensen, 1920
Ceratium teres Kofoid, 1907 accepted as Tripos teres (Kofoid) F.Gómez, 2013
Ceratium trichoceros (Ehrenberg) Kofoid, 1881 accepted as Tripos trichoceros (Ehrenberg) Gómez, 2013
Ceratium tripos (O.F.Müller) Nitzsch, 1817 accepted as Tripos muelleri Bory de Saint-Vincent, 1826
Ceratium tripos f. contortum (Gourret) Karsten, 1906
Ceratium tripos f. contrarium (Gourret) B.Schroder, 1900
Ceratium tripos f. hiemale Paulsen, 1907
Ceratium tripos f. ponticum (Jorgensen) Schiller, 1937
Ceratium tripos f. reflexum (Cleve) Hensen, 1911
Ceratium tripos f. semipulchellum (Jörgensen) Peters, 1932
Ceratium tripos subsp. balticum Schütt, 1892
Ceratium tripos var. atlanticum (Ostenfeld) Paulsen, 1908
Ceratium tripos var. baltica
Ceratium tripos var. gracile Pouchet, 1883
Ceratium tripos var. inequale Gourret, 1883 (uncertain > unassessed )
Ceratium tripos var. lineatum
Ceratium tripos var. macroceras
Ceratium tripos var. neglectum (Ostenfeld) Paulsen, 1907
Ceratium tripos var. platycorne (Daday) Lemmermann, 1899
Ceratium tripos var. platycorne (Daday) Ostenfeld, 1899
Ceratium tripos var. ponticum Jorgensen, 1920
Ceratium tripos var. porrectum (Karsten) Margalef, 1967
Ceratium tripos var. tripos (Müller) Nitzsch, 1817
Ceratium tripos var. typicum Gourret, 1883 (uncertain > unassessed )
Ceratium varians Mangin, 1922
Ceratophorus tridens (Ehrenberg) Diesing, 1850
Endoceratium immarinum Razumkova, 2016 †
Neoceratium arcticum (Ehrenberg) F.Gómez, D.Moreira & P.López-Garcia, 2010 accepted as Ceratium arcticum (Ehrenberg) L.Maggi, 1880 accepted as Tripos arcticus (Vanhöffen) F.Gómez, 2013
Neoceratium arietinum (Cleve) F.Gómez, D.Moreira & P.López-Garcia, 2010 accepted as Tripos arietinus (Cleve) F.Gómez, 2021
Neoceratium azoricum (Cleve) F.Gómez, D.Moreira & P.López-Garcia, 2010 accepted as Tripos azoricus (Cleve) F.Gómez, 2013
Neoceratium biceps (Claparède & Lachmann) F.Gómez, D.Moreira & P.López-Garcia, 2010 accepted as Tripos biceps (Claparède & Lachmann) F.Gómez, 2013
Neoceratium breve (Ostenfeld & Schmidt) F.Gómez, D.Moreira & P.López-Garcia, 2010 accepted as Tripos brevis (Ostenfeld & Johannes Schmidt) F.Gómez, 2013
Neoceratium candelabrum (Ehrenberg) F.Gómez, D.Moreira & P.López-Garcia, 2010 accepted as Tripos candelabrum (Ehrenberg) F.Gómez, 2013
Neoceratium carnegiei (Graham & Bronikowsky) F.Gómez, D.Moreira & P.López-Garcia, 2010 accepted as Tripos carnegiei (H.W.Graham & Bronikovsky) F.Gómez, 2013
Neoceratium compressum (Gran) F.Gomez, D.Moreira & P.Lopez-Garcia, 2010 accepted as Tripos compressus (Gran) F.Gómez, 2013
Neoceratium contortum (Gourret) F.Gomez, D.Moreira & P.Lopez-Garcia, 2010 accepted as Tripos contortus (Gourret) F.Gómez, 2013
Neoceratium declinatum (Karsten) F.Gomez, D.Moreira & P.Lopez-Garcia, 2010 accepted as Tripos declinatus (G.Karsten) F.Gómez, 2013
Neoceratium extensum (Gourret) F.Gomez, D.Moreira & P.Lopez-Garcia, 2010 accepted as Tripos extensus (Gourret) F.Gómez, 2013
Neoceratium falcatiforme (Jørgensen) F.Gomez, D.Moreira & P.Lopez-Garcia, 2010 accepted as Tripos falcatiformis (Jørgensen) F.Gómez, 2013
Neoceratium falcatum (Kofoid) F.Gomez, D.Moreira & P.Lopez-Garcia, 2010 accepted as Tripos falcatus (Kofoid) F.Gómez, 2013