Chaetoceros

Centrales
 Pennales

Chaetoceros er trolig den største gruppen av marine planktoniske kiselalger med omtrent 400 arter beskrevet. En stor andel av disse er riktignok ikke vitenskapelig aksepterte. Det er ofte vanskelig å skille de forskjellige Chaetoceros artene fra hverandre, noe som leder til at feilidentifisering er ganske utbredt. I tillegg har det blitt gjort mange forsøk på å restrukturere denne store gruppen, men dette arbeidet er langt fra ferdig Mesteparten av forskningen som har blitt gjort på denne verdensomspennende gruppen har vært konsentrert i boreale områder, dermed er det trolig et stort antall tropiske arter som enda ikke har blitt beskrevet.

Beskrivelse 
Gruppen Chaetoceros ble først beskrevet av Ehrenberg i 1844.
Cellene er mer eller mindre rektangulære sett ovenfra, og litt mer ovale sett fra siden.
Setaene til celler i kjede er sammenføyde ved utgangspunktet til setaene.

Noen Chaetoceros arter 
 Chaetoceros abnormis A.I. Proshkina-Lavrenko
 Chaetoceros aculeatus I.V. Makarova
 Chaetoceros adelianus E.E. Manguin
 Chaetoceros aduncus I.N. Sukhanova
 Chaetoceros aequatorialis var. antarcticus Manguin
 Chaetoceros aequatorialis Cleve
 Chaetoceros affinis f. pseudosymmetricus (E. Steemann Nielsen) M. Torrington-Smith
 Chaetoceros affinis f. parallelus M. Thorrington-Smith
 Chaetoceros affinis f. inaequalis M. Thorrington-Smith
 Chaetoceros affinis Lauder
 Chaetoceros amanita A. Cleve-Euler
 Chaetoceros anastomosans Grunow
 Chaetoceros angularis Schütt
 Chaetoceros angulatus F. Schütt
 Chaetoceros anostomosans var. speciosus F. Schütt
 Chaetoceros armatus T. West
 Chaetoceros astrabadicus A. Henckel
 Chaetoceros atlanticus var. compactus (F. Schütt) P.T. Cleve
 Chaetoceros atlanticus var. neapolitanus (Schroeder) Hustedt
 Chaetoceros atlanticus var. tumescens A. Grunow
 Chaetoceros atlanticus Cleve
 Chaetoceros atlanticus f. audax (F. Schütt) H.H. Gran
 Chaetoceros atlanticus var. cruciatus (G. Karsten) M. Thorrington-Smith
 Chaetoceros audax F. Schütt
 Chaetoceros bacteriastrius G.C. Wallich
 Chaetoceros bacteriastroides f. imbricatus (L.A. Mangin) M. Thorrington-Smith
 Chaetoceros bacteriastroides G.H.H. Karsten
 Chaetoceros bermejense D. U. Hernández-Becerril
 Chaetoceros bisetaceus J. Schumann
 Chaetoceros borealis J.W. Bailey
 Chaetoceros borealoides H.L. Honigmann
 Chaetoceros breve F. Schütt
 Chaetoceros brevis Schütt
 Chaetoceros brussilowi A. Henckel
 Chaetoceros buceros G.H.H. Karsten
 Chaetoceros buceros Karsten
 Chaetoceros bulbosus (Ehrenberg) Heiden
 Chaetoceros bulbosus f. cruciatus (G. Karsten) H. Heiden
 Chaetoceros bulbosus f. schimperana (G. Karsten) H. Heiden
 Chaetoceros bungei Honigmann
 Chaetoceros calcitrans f. pumilus Takano
 Chaetoceros californicus A. Grunow
 Chaetoceros capense G.H.H. Karsten
 Chaetoceros caspicus C.E.H. Ostenfeld
 Chaetoceros caspicus var. karianus A. Henckel
 Chaetoceros caspicus f. pinguichaetus A. Henckel & P. Henckel
 Chaetoceros castracanei Karsten
 Chaetoceros castracanei G.H.H. Karsten
 Chaetoceros ceratospermus var. minor A.F. Meunier
 Chaetoceros ceratosporus var. brachysetus Rines & Hargraves
 Chaetoceros ceratosporus Ostenfeld
 Chaetoceros chunii G.H.H. Karsten
 Chaetoceros cinctus Gran
 Chaetoceros clavigera C.E.H. Ostenfeld
 Chaetoceros clavigerus A. Grunow
 Chaetoceros clevei F. Schütt
 Chaetoceros coarctatus Lauder
 Chaetoceros cochleus F. Schütt
 Chaetoceros compactus F. Schütt
 Chaetoceros compressus var. gracilis F. Hustedt
 Chaetoceros compressus var. hirtisetus J.E.B. Rines & P.E. Hargraves
 Chaetoceros concavicorne Mangin
 Chaetoceros confervoides J. Ralfs
 Chaetoceros confusus S.L. VanLandingham
 Chaetoceros constrictus Gran
 Chaetoceros convolutus Castracane
 Chaetoceros convolutus f. trisetosus Brunel
 Chaetoceros convolutus f. volans L.I. Smirnova
 Chaetoceros cornutus G. Leuduger-Fortmorel
 Chaetoceros coronatus Gran
 Chaetoceros costatus Pavillard
 Chaetoceros crenatus (C.G. Ehrenberg) T. Brightwell
 Chaetoceros crinitus Schütt
 Chaetoceros criophilus Castracane
 Chaetoceros cruciatus G.H.H. Karsten
 Chaetoceros curvatus Castracane
 Chaetoceros curvisetus Cleve
 Chaetoceros dadayi Pavillard
 Chaetoceros danicus Cleve
 Chaetoceros debilis Cleve
 Chaetoceros decipiens f. singularis H.H. Gran
 Chaetoceros decipiens Cleve
 Chaetoceros delicatulus C.E.H. Ostenfeld
 Chaetoceros densus Cleve
 Chaetoceros diadema (Ehrenberg) Gran
 Chaetoceros dichaeta f. unicellularis H. Heiden
 Chaetoceros dichaetus Ehrenberg
 Chaetoceros dichaetus var. polygonus (F. Schütt) H. Heiden
 Chaetoceros didymus var. praelongus E.J. Lemmermann
 Chaetoceros didymus f. aestivus H.H. Gran
 Chaetoceros didymus f. autumnalis H.H. Gran
 Chaetoceros didymus C.G. Ehrenberg
 Chaetoceros difficilis Cleve
 Chaetoceros distichus F. Schütt
 Chaetoceros distinguendus E.J. Lemmermann
 Chaetoceros diversicurvatus Van Goor
 Chaetoceros diversus var. mediterraneus J.L.B. Schröder
 Chaetoceros diversus Cleve
 Chaetoceros eibenii (Grunow) Meunier
 Chaetoceros elmorei Boyer
 Chaetoceros elongatus Honigmann
 Chaetoceros exospermus Meunier
 Chaetoceros externus Gran
 Chaetoceros fallax Prosckina-Lavrenko
 Chaetoceros femur F. Schütt
 Chaetoceros filiferus G.H.H. Karsten
 Chaetoceros filiforme Meunier
 Chaetoceros flexuosus Mangin
 Chaetoceros fragilis Meunier
 Chaetoceros furca var. macroceras J.L.B. Schröder
 Chaetoceros furcellatus J.W. Bailey
 Chaetoceros fusus F. Schütt
 Chaetoceros galvestonense Collier & Murphy
 Chaetoceros gastridius (C.G. Ehrenberg) T. Brightwell
 Chaetoceros gaussii Heiden & Kolbe
 Chaetoceros glacialis A. Henckel
 Chaetoceros glandazii Mangin
 Chaetoceros gobii A. Henckel
 Chaetoceros gracilis Pantocsek
 Chaetoceros grunowii F. Schütt
 Chaetoceros hendeyi Manguin
 Chaetoceros hispidus var. monicae A. Grunow
 Chaetoceros hohnii Graebn. & Wujek
 Chaetoceros holsaticus Schütt
 Chaetoceros ikari B.V. Skvortzov
 Chaetoceros imbricatus Mangin
 Chaetoceros incurvus var. umbonatus Castracane
 Chaetoceros incurvus Bailey
 Chaetoceros indicus Karsten
 Chaetoceros ingolfianus Ostenfeld
 Chaetoceros intermedius A. Henckel
 Chaetoceros karianus Grunow
 Chaetoceros karyanus A. Henckel
 Chaetoceros knipowitschii A. Henckel
 Chaetoceros laciniosus Schütt
 Chaetoceros laciniosus f. protuberans M. Thorrington-Smith
 Chaetoceros laciniosus f. pelagicus H.H. Gran
 Chaetoceros lauderi Ralfs
 Chaetoceros leve F. Schütt
 Chaetoceros littorale litorale E.J. Lemmermann
 Chaetoceros lorenzianus var. forceps A.F. Meunier
 Chaetoceros lorenzianus Grunow
 Chaetoceros malygini A. Henckel
 Chaetoceros medius F. Schütt C
 Chaetoceros meridiana (F. Schütt) G. Karsten
 Chaetoceros mertensii H.L. Honigmann
 Chaetoceros messanense Castracane C
 Chaetoceros minimus (Levander) D. Marino, G. Giuffre, M. Montresor & A. Zingone
 Chaetoceros misumensis H.H. Gran & K. Yendo
 Chaetoceros mitra (J.W. Bailey) Cleve
 Chaetoceros muelleri var. duplex E.J. Lemmermann
 Chaetoceros muelleri var. subsalsum J.R. Johansen & S. Rushforth
 Chaetoceros muelleri E.J. Lemmermann
 Chaetoceros muellerii var. subsalsus J.R. Johansen & Rushforth
 Chaetoceros nansenii A. Henckel
 Chaetoceros natatus E.E. Manguin
 Chaetoceros neglectus Karsten
 Chaetoceros neobulbosus T.V. Desikachary, S. Gowthaman & Y. Latha
 Chaetoceros neocompactus S.L. VanLandingham
 Chaetoceros neogracile S.L. VanLandingham
 Chaetoceros neupokojewii A. Henckel
 Chaetoceros nipponicus J. Ikari
 Chaetoceros odontella (C.G. Ehrenberg) G.L. Rabenhorst
 Chaetoceros okamurae var. tetrasetus J. Ikari
 Chaetoceros okamurae J. Ikari
 Chaetoceros ostenfeldii P.T. Cleve
 Chaetoceros pachtussowii A. Henckel
 Chaetoceros pachyceros R. Margalef
 Chaetoceros pacificus J. Ikari
 Chaetoceros paradoxus Cleve
 Chaetoceros paradoxus var. luedersii Engler
 Chaetoceros parvus F. Schütt
 Chaetoceros paulsenii f. robustus A. Henckel
 Chaetoceros pavillardii J. Ikari
 Chaetoceros pelagicus
 Chaetoceros pendulus Karsten
 Chaetoceros perpusillus Cleve
 Chaetoceros peruvianus var. victoriae Karsten
 Chaetoceros peruvianus var. gracilis J.L.B. Schröder
 Chaetoceros peruvianus Brightwell
 Chaetoceros peruvianus var. robustum P.T. Cleve
 Chaetoceros peruvianus var. suadivae Karsten
 Chaetoceros peruvianus f. volans (F. Schütt) C.E.H. Ostenfeld
 Chaetoceros peruvianus f. robustus (P.T. Cleve) C.E.H. Ostenfeld
 Chaetoceros phuketensis J.E.B. Rines, P. Boonruang & E.C. Theriot
 Chaetoceros pingue A. Henckel
 Chaetoceros pinguichaetus A. Henckel & P. Henckel
 Chaetoceros pliocenus J.-J. Brun
 Chaetoceros protuberans H.S. Lauder
 Chaetoceros pseudoaurivillii J. Ikari
 Chaetoceros pseudocrinitus Ostenfeld
 Chaetoceros pseudocurvisetus Mangin
 Chaetoceros pseudodichaeta J. Ikari
 Chaetoceros pundulus G.H.H. Karsten
 Chaetoceros radians F. Schütt
 Chaetoceros radicans F. Schütt
 Chaetoceros recurvatus f. robustus Henckel
 Chaetoceros recurvatus Henckel
 Chaetoceros robustus (P.T. Cleve) C.E.H. Ostenfeld
 Chaetoceros rostratus Lauder
 Chaetoceros russanowi A. Henckel
 Chaetoceros salsugineus Takano
 Chaetoceros saltans P.T. Cleve
 Chaetoceros schmidtii C.E.H. Ostenfeld
 Chaetoceros schuettii f. oceanicus H.H. Gran
 Chaetoceros secundus P.T. Cleve
 Chaetoceros seiracanthus Gran
 Chaetoceros sessile Grøntved
 Chaetoceros setoense J. Ikari
 Chaetoceros seychellarus G.H.H. Karsten
 Chaetoceros seychellarus var. austral E.E. Manguin
 Chaetoceros siamense C.E.H. Ostenfeld
 Chaetoceros similis Cleve
 Chaetoceros simplex C.E.H. Ostenfeld C
 Chaetoceros skeleton F. Schütt
 Chaetoceros socialis f. radians (F. Schütt) A.I. Proshkina-Lavrenko
 Chaetoceros socialis Lauder
 Chaetoceros socialis var. autumnalis Prosckina-Lavrenko
 Chaetoceros sedowii A. Henckel
 Chaetoceros strictus G.H.H. Karsten
 Chaetoceros subcompressus J.L.B. Schröder
 Chaetoceros subsalsus Lemmermann
 Chaetoceros subsecundus (Grunow ex Van Heurck) Hustedt
 Chaetoceros subtilis Cleve
 Chaetoceros sumatranus Karsten
 Chaetoceros tenuissimus A.F. Meunier
 Chaetoceros teres f. spinulosus H.H. Gran
 Chaetoceros teres Cleve
 Chaetoceros tetrachaeta Ehrenberg
 Chaetoceros tetras G.H.H. Karsten
 Chaetoceros tetrastichon Cleve
 Chaetoceros thienemannii Hustedt
 Chaetoceros throndsenii var. trisetosus Zingone
 Chaetoceros throndsenii var. throndsenia D. Marino, M. Montresor & A. Zingone
 Chaetoceros throndsenii (Marino, Montresor, & Zingone) Marino, Montresor & Zingone
 Chaetoceros tortissimus H.H. Gran
 Chaetoceros transisetus J.R. Johansen & J.S. Boyer
 Chaetoceros vanheurckii H.H. Gran
 Chaetoceros vermiculus F. Schütt
 Chaetoceros villosus Kützing
 Chaetoceros vistulae C. Apstein
 Chaetoceros volans F. Schütt
 Chaetoceros weissflogii F. Schütt
 Chaetoceros wighamii Brightwell
 Chaetoceros willei Grunow
 Chaetoceros zachariasi var. longus H.L. Honigmann
 Chaetoceros zachariasii var. variatus H.L. Honigmann
 Chaetoceros zachariasii var. latus H.L. Honigmann
 Chaetoceros zachariasii Honigmann
 Chaetoceros ziwolkii A. Henckel

Referanser

Eksterne lenker 
 
 Algaebase
 C.H. von Quillfeldt article
 Rines 2000 article
 Index Nominum Algarum
 Catalogue of Diatom Names, California Academy of Sciences

Alger