Actinocyclus irregularis Van Heurck, 1909 (original description)
Actinocyclus karstenii Van Heurck, 1909 (original description)
Actinocyclus polygonus var. ornatus Van Heurck, 1909 accepted as Charcotiella ornata (Van Heurck) S.Blanco & C.E.Wetzel, 2016 (original description)
Actinocyclus polygonus var. polygonus (Castracane) Van Heurck, 1909 accepted as Coscinodiscus polygonus Castracane, 1886 (new combination reference)
Amphiprora belgicae var. belgicae Van Heurck, 1909 (original description)
Amphiprora belgicae var. major Van Heurck, 1909 (original description)
Amphiprora kjellmanii var. subtilissima Van Heurck, 1909 (original description)
Amphiprora oestrupii var. minor Van Heurck, 1909 (original description)
Amphiprora oestrupii var. oestrupii Van Heurck, 1909 (original description)
Amphora angusta var. angustissima Van Heurck, 1909 (original description)
Amphora mexicana var. schmidtiana Van Heurck, 1909 (original description)
Amphora peragallorum var. peragallorum Van Heurck, 1909 (original description)
Amphora peragallorum var. robusta Van Heurck, 1909 (original description)
Amphora racovitzae var. racovitzae Van Heurck, 1909 (original description)
Arachnoidiscus ehrenbergii var. indicus Grunow in Van Heurck, 1909 accepted as Arachnoidiscus indicus var. indicus Ehrenberg, 1854 (original description)
Biddulphia affinis (Grunow in Van Heurck) Van Heurck, 1909 accepted as Triceratium affine Grunow in Van Heurck, 1883 (new combination reference)
Biddulphia anthropomorpha Van Heurck, 1909 (original description)
Biddulphia arctica f. peragalli ‘Schmidt' Van Heurck accepted as Triceratium peragallii f. peragallii Brun in Schmidt et al., 1891 (taxonomy source)
Biddulphia frickei Van Heurck, 1909 (original description)
Biddulphia kemnae Van Heurck, 1909 (original description)
Biddulphia litigiosa Van Heurck, 1909 (original description)
Biddulphia ottomuelleri var. ottomuelleri Van Heurck, 1909 (original description)
Biddulphia ottomuelleri var. rotunda Van Heurck, 1909 (original description)
Biddulphia peragalli var. peragalli (Brun in Schmidt et al.) Van Heurck, 1909 accepted as Triceratium peragallii f. peragallii Brun in Schmidt et al., 1891 (new combination reference)
Biddulphia permagna (Janisch) Van Heurck, 1909 accepted as Triceratium permagnum Janisch, 1888 (new combination reference)
Biddulphia punctata var. subaurita Van Heurck, 1909 (original description)
Biddulphia punctata var. subtriundulata Van Heurck, 1909 (original description)
Biddulphia sentum (Witt in Schmidt et al.) Van Heurck, 1909 accepted as Triceratium sentum f. sentum Witt in Schmidt et al., 1890 (new combination reference)
Biddulphia translucida Van Heurck, 1909 (original description)
Biddulphia weissii (Grunow in Schmidt et al.) Van Heurck, 1909 accepted as Triceratium weissii Grunow in A.Schmidt, 1886 † accepted as Medlinia weissei (Grunow in A.Schmidt) P.A.Sims, 1998 † (new combination reference)
Chaetoceros skeleton Van Heurck, 1909 (original description)
Cocconeis antiqua var. tenuistriata H.F.Van Heurck, 1909 (original description)
Cocconeis gautieri var. inornata Van Heurck, 1909 (original description)
Cocconeis gautierii var. gautierii Van Heurck, 1909 (original description)
Cocconeis heydrichii H.F.Van Heurck, 1909 (original description)
Cocconeis japonica var. antarctica H.F.Van Heurck, 1909 (original description)
Cocconeis litigiosa van Heurck, 1909 (original description)
Cocconeis schuetii var. minor Van Heurck, 1909 (original description)
Cocconeis schuetii var. schuetii Van Heurck, 1909 (original description)
Corethron pinnatum (Grunow in Van Heurck) Ostenfeld in Van Heurck, 1909 (new combination reference)
Coscinodiscus australis Van Heurck, 1909 (original description)
Coscinodiscus bifrons Van Heurck, 1909 (original description)
Coscinodiscus chromoradiatus sensu Van Heurck, 1909 (original description)
Coscinodiscus denarius Van Heurck, 1909 (original description)
Coscinodiscus gerlachii Van Heurck, 1909 (original description)
Coscinodiscus lentiginosus var. confusus Van Heurck, 1909 (original description)
Coscinodiscus lineatus var. lineata-convexa Van Heurck, 1909 (original description)
Coscinodiscus oestrupii Van Heurck, 1909 (original description)
Coscinodiscus radiatus f. conspicua Van Heurck, 1909 (original description)
Coscinodiscus stellaris var. novus Van Heurck, 1909 (original description)
Coscinodiscus tumidus var. lineatusconvexus Van Heurck, 1909 (original description)
Eucampia balaustium Van Heurck, 1909 (original description)
Eucampia balaustium sensu Van Heurck, 1909 (original description)
Fragilaria antarctica f. lata van Heurck, 1909 (original description)
Fragilaria curta Van Heurck, 1909 (original description)
Fragilaria cylindrus f. elongata van Heurck, 1909 (original description)
Fragilaria obliquecostata f. maxima van Heurck, 1909 (original description)
Fragilaria obliquecostata f. obliquecostata Van Heurck, 1909 (original description)
Fragilaria sublinearis f. lata Van Heurck, 1909 (original description)
Fragilaria sublinearis f. longa Van Heurck, 1909 (original description)
Fragilaria sublinearis f. sublinearis Van Heurck, 1909 (original description)
Hyalodiscus pantocsekii var. pantocsekii Van Heurck, 1909 (original description)
Mastogloia quinquecostata f. minor Van Heurck, 1909 (original description)
Melosira antarctica Van Heurck, 1909 (original description)
Melosira deblockii var. deblockii Van Heurck, 1909 (original description)
Melosira deblockii var. punctata Van Heurck, 1909 (original description)
Melosira dewildemanii Van Heurck, 1909 (original description)
Melosira subhyalina Van Heurck, 1909 (original description)
Melosira wildemannii Van Heurck, 1909 (original description)
Navicula brasiliensis var. notata Van Heurck, 1909 (original description)
Navicula criophila (Castracane) Van Heurck, 1909 accepted as Pinnularia criophila Castracane, 1886 (new combination reference)
Navicula frequens Van Heurck, 1909 (original description)
Navicula frickei Van Heurck, 1909 (original description)
Navicula glaciei Van Heurck, 1909 (original description)
Navicula jejunoides f. jejunoides Van Heurck, 1909 (original description)
Navicula jejunoides f. longissima Van Heurck, 1909 (original description)
Navicula mauriciana Van Heurck, 1909 (original description)
Navicula multicopsis f. multicopsis Van Heurck, 1909 (original description)
Navicula muticopsis Van Heurck, 1909 (original description)
Navicula praetexta var. antarctica Van Heurck, 1909 (original description)
Navicula schuettii f. schuettii Van Heurck, 1909 (original description)
Nitzschia angularis f. tenuistriata Van Heurck, 1909 (original description)
Nitzschia angustissima var. angustissima Van Heurck, 1909 (original description)
Nitzschia arctica var. paucipunctata Van Heurck, 1909 (original description)
Nitzschia chalonii var. chalonii Van Heurck, 1909 (original description)
Nitzschia chalonii var. delicatissima Van Heurck, 1909 (original description)
Nitzschia chalonii var. tenuistriata Van Heurck, 1909 (original description)
Nitzschia lecointei van Heurck, 1909 (original description)
Nitzschia ostenfeldii var. minor van Heurck, 1909 accepted as Fragilariopsis barbieri (M. Peragallo) Cefarelli, Ferrario & Lundholm, 2021 (original description)
Nitzschia ostenfeldii var. ostenfeldii Van Heurck, 1909 (original description)
Nitzschia semigibbosa Van Heurck, 1909 (original description)
Odontidium marinum f. minor Van Heurck, 1909 (original description)
Peragalloella H. Van Heurck, 1909 (original description)
Peragalloella scalaris (Ehrenberg) Van Heurck, 1909 (new combination reference)
Rhaphoneis amphiceros var. antarctica Van Heurck, 1909 (original description)
Stauroneis pacifica var. minor Van Heurck, 1909 (original description)
Stephanopyxis grunowii var. ornata Van Heurck, 1909 (original description)
Stephanopyxis spinosa var. spinifera Van Heurck, 1909 (original description)
Synedra reinboldii Van Heurck, 1909 (original description)
Trinacria excavata var. pulchella Van Heurck, 1909 (original description)

 Nomenclature

 for 

Original publication only mentions the possibility that this is a new variety. The variety name 'antarctica' was ... [details]