taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
03FF7D6EFFAA1F7BFF0C56A3FB17F0FD.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13647366/files/figure.png	https://doi.org/10.5281/zenodo.13647366	FIGURES 1–17. Caloneis australis sp. nov. LM and most SEM pictures taken from the holotype population (sample BY062) from Livingston Island (South Shetland Islands). 1–12. Light microscopy observations. Fig. 1 shows an intial valve, and Fig. 12 shows the girdle view. 13. SEM of an entire valve, externally. 14. SEM detail of the valve showing the central area and the lunate markings. 15. SEM detail of the valve face and mantle showing the striae; arrows indicate the slits on the mantle. 16. SEM of an entire valve, internal view (picture taken from James Ross Island, sample JRI032). 17. SEM detail of the mantle and girdle, showing the single row of pores on the valvocopula; arrows indicate the rounded plaques (picture taken from James Ross Island, sample JRI015). Scale bar represents 10 μm except for figs 14, 15 and 17 where scale bar = 1 μm.	FIGURES 1–17. Caloneis australis sp. nov. LM and most SEM pictures taken from the holotype population (sample BY062) from Livingston Island (South Shetland Islands). 1–12. Light microscopy observations. Fig. 1 shows an intial valve, and Fig. 12 shows the girdle view. 13. SEM of an entire valve, externally. 14. SEM detail of the valve showing the central area and the lunate markings. 15. SEM detail of the valve face and mantle showing the striae; arrows indicate the slits on the mantle. 16. SEM of an entire valve, internal view (picture taken from James Ross Island, sample JRI032). 17. SEM detail of the mantle and girdle, showing the single row of pores on the valvocopula; arrows indicate the rounded plaques (picture taken from James Ross Island, sample JRI015). Scale bar represents 10 μm except for figs 14, 15 and 17 where scale bar = 1 μm.	2016-08-26	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De		Zenodo	biologists	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De			
03FF7D6EFFAA1F7CFF0C53EFFC50F2BB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13647368/files/figure.png	https://doi.org/10.5281/zenodo.13647368	FIGURES 18–34. Chamaepinnularia elliptica sp. nov. Most LM and part of the SEM pictures taken from the holotype population (sample JRI-D02) from James Ross Island. 18–27. Light microscopy observations. 28–30. LM views of valves from South Shetland Islands. 31. SEM of an entire valve, external view (picture taken from Livingston Island, sample BY040). 32. SEM of an entire valve, external view. 33. SEM of an entire valve, internal view (picture taken from Livingston Island, sample BY040). 34. SEM of an entire valve, internal view. Scale bar represents 10 μm except for fig. 34 where scale bar = 1 μm.	FIGURES 18–34. Chamaepinnularia elliptica sp. nov. Most LM and part of the SEM pictures taken from the holotype population (sample JRI-D02) from James Ross Island. 18–27. Light microscopy observations. 28–30. LM views of valves from South Shetland Islands. 31. SEM of an entire valve, external view (picture taken from Livingston Island, sample BY040). 32. SEM of an entire valve, external view. 33. SEM of an entire valve, internal view (picture taken from Livingston Island, sample BY040). 34. SEM of an entire valve, internal view. Scale bar represents 10 μm except for fig. 34 where scale bar = 1 μm.	2016-08-26	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De		Zenodo	biologists	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De			
03FF7D6EFFAC1F7EFF0C50EFFD5FF7AF.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13647372/files/figure.png	https://doi.org/10.5281/zenodo.13647372	FIGURES 35–45. Cosmioneis regigeorgiensis sp. nov. LM & SEM pictures taken from the holotype population (sample KGI9) from King George Island, South Shetland Islands. 35–42. LM views of 8 valves from the type population. Fig. 35 shows the girdle view. 43. SEM view of the mantle and girdle bands. 44. SEM of an entire valve, external view. 45. SEM of an entire valve, internal view. Scale bar represents 10 μm.	FIGURES 35–45. Cosmioneis regigeorgiensis sp. nov. LM & SEM pictures taken from the holotype population (sample KGI9) from King George Island, South Shetland Islands. 35–42. LM views of 8 valves from the type population. Fig. 35 shows the girdle view. 43. SEM view of the mantle and girdle bands. 44. SEM of an entire valve, external view. 45. SEM of an entire valve, internal view. Scale bar represents 10 μm.	2016-08-26	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De		Zenodo	biologists	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De			
03FF7D6EFFAF1F70FF0C5096FE95F2FF.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13647374/files/figure.png	https://doi.org/10.5281/zenodo.13647374	FIGURES 59–80. Mayamaea tytgatiana sp. nov. LM & SEM pictures taken from the holotype population (sample D37) from Deception Island (South Shetland Islands). 59–76. LM views of 18 valves from the type population. Fig. 76 shows the girdle view. 77. SEM of an entire valve, external view. 78. SEM detail of the valve externally, showing the enlarged central raphe endings and rounded areolae with external hymenes. 79. SEM view of the valve mantle with the slit-like areolae (arrows) and the hooked, elongated distal raphe endings. 80. SEM of an entire valve, internal view. Scale bar represents 10 μm except for fig. 78 where scale bar = 1 μm and fig. 79 where scale bar = 2 μm.	FIGURES 59–80. Mayamaea tytgatiana sp. nov. LM & SEM pictures taken from the holotype population (sample D37) from Deception Island (South Shetland Islands). 59–76. LM views of 18 valves from the type population. Fig. 76 shows the girdle view. 77. SEM of an entire valve, external view. 78. SEM detail of the valve externally, showing the enlarged central raphe endings and rounded areolae with external hymenes. 79. SEM view of the valve mantle with the slit-like areolae (arrows) and the hooked, elongated distal raphe endings. 80. SEM of an entire valve, internal view. Scale bar represents 10 μm except for fig. 78 where scale bar = 1 μm and fig. 79 where scale bar = 2 μm.	2016-08-26	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De		Zenodo	biologists	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De			
03FF7D6EFFA01F73FF0C56A3FEE3F584.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13647376/files/figure.png	https://doi.org/10.5281/zenodo.13647376	FIGURES 81–91. Muelleria pimpireviana sp. nov. LM & SEM pictures taken from the holotype population (sample NI26) from Nelson Island (South Shetland Islands). 81–89. LM views of 9 valves from the type population. 90. SEM of the valve exterior. 91. SEM detail of the apex, showing the bifurcated distal raphe endings. Scale bar represents 10 μm except for fig. 91 where scale bar = 2 μm.	FIGURES 81–91. Muelleria pimpireviana sp. nov. LM & SEM pictures taken from the holotype population (sample NI26) from Nelson Island (South Shetland Islands). 81–89. LM views of 9 valves from the type population. 90. SEM of the valve exterior. 91. SEM detail of the apex, showing the bifurcated distal raphe endings. Scale bar represents 10 μm except for fig. 91 where scale bar = 2 μm.	2016-08-26	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De		Zenodo	biologists	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De			
03FF7D6EFFA21F73FF0C5734FE89F0D8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13647378/files/figure.png	https://doi.org/10.5281/zenodo.13647378	FIGURES 92–118. Navicula romanedwardii sp. nov. and Navicula seibigiana s.s. LM & SEM pictures of Navicula romanedwardii taken from the holotype population (sample D18) from James Ross Island and two other populations on James Ross Island and South Shetland Islands (indicated below). LM pictures of Navicula seibigiana taken from the type slide (Praep. Hintz 160, Eu-CH 15 in Coll. Lange- Bertalot). 92–98. Navicula romanedwardii, LM views of 7 valves from the type population. Fig. 92 shows the girdle view in LM. 99–103. Navicula seibigiana s.s., LM views of 5 valves from the type population. 104–114. Navicula romanedwardii, LM views of 11 valves from a Deception Island population (sample D37). 115. Navicula romanedwardii, SEM of an entire valve, external view.Arrows show the slits at the apices. 116. Navicula romanedwardii, SEM detail of the central area and central raphe endings. 117. Navicula romanedwardii, SEM of an entire valve, internal view (picture taken from James Ross Island, sample JRI015). 118. Navicula romanedwardii, SEM detail of the central part of the valve internally, showing the continuous raphe (picture taken from James Ross Island, sample JRI015). Scale bar represents 10 μm except for figs 116 and 118 where scale bar = 1 μm.	FIGURES 92–118. Navicula romanedwardii sp. nov. and Navicula seibigiana s.s. LM & SEM pictures of Navicula romanedwardii taken from the holotype population (sample D18) from James Ross Island and two other populations on James Ross Island and South Shetland Islands (indicated below). LM pictures of Navicula seibigiana taken from the type slide (Praep. Hintz 160, Eu-CH 15 in Coll. Lange- Bertalot). 92–98. Navicula romanedwardii, LM views of 7 valves from the type population. Fig. 92 shows the girdle view in LM. 99–103. Navicula seibigiana s.s., LM views of 5 valves from the type population. 104–114. Navicula romanedwardii, LM views of 11 valves from a Deception Island population (sample D37). 115. Navicula romanedwardii, SEM of an entire valve, external view.Arrows show the slits at the apices. 116. Navicula romanedwardii, SEM detail of the central area and central raphe endings. 117. Navicula romanedwardii, SEM of an entire valve, internal view (picture taken from James Ross Island, sample JRI015). 118. Navicula romanedwardii, SEM detail of the central part of the valve internally, showing the continuous raphe (picture taken from James Ross Island, sample JRI015). Scale bar represents 10 μm except for figs 116 and 118 where scale bar = 1 μm.	2016-08-26	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De		Zenodo	biologists	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De			
03FF7D6EFFA21F74FF0C5390FD41F2EE.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13647382/files/figure.png	https://doi.org/10.5281/zenodo.13647382	FIGURES 119–135. Pinnularia pinseeliana sp. nov. LM & SEM pictures taken from the holotype population (sample CC2) from Deception Island (South Shetland Islands).119–131. LM views of 13 valves from the type population. Fig. 119 shows the girdle view. 132. SEM of an entire valve, external view. 133. SEM detail of the valve externally, showing the alveoli of the striae. 134. SEM of entire valve, internal view. 135. SEM detail of the valve interior.Arrows showing the elevated siliceous outgrowths on the virgae. Scale bar represents 10 μm except for figs 133 and 135 where scale bar = 1 μm.	FIGURES 119–135. Pinnularia pinseeliana sp. nov. LM & SEM pictures taken from the holotype population (sample CC2) from Deception Island (South Shetland Islands).119–131. LM views of 13 valves from the type population. Fig. 119 shows the girdle view. 132. SEM of an entire valve, external view. 133. SEM detail of the valve externally, showing the alveoli of the striae. 134. SEM of entire valve, internal view. 135. SEM detail of the valve interior.Arrows showing the elevated siliceous outgrowths on the virgae. Scale bar represents 10 μm except for figs 133 and 135 where scale bar = 1 μm.	2016-08-26	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De		Zenodo	biologists	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De			
03FF7D6EFFA41F76FF0C56A3FD72F4C8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13647384/files/figure.png	https://doi.org/10.5281/zenodo.13647384	FIGURES 136–156. Sellaphora antarctica sp. nov. LM and part of the SEM pictures taken from the holotype population (sample BYM051) from Livingston Island (South Shetland Islands). 136–153. LM views of 18 valves from the type population. Figs 152–153 represent girdle view. 154. SEM of an entire valve, external view (picture taken from James Ross Island, sample JRI-004). 155. SEM of the valve exterior, showing the mantle and girdle. 156. SEM of an entire valve, internal view (picture taken from James Ross Island, sample JRI-11). Arrow indicates the shallow depression present at each apex. Scale bar represents 10 μm except for fig. 154 where scale bar = 5 μm and figs 155 and 156 where scale bar = 2 μm.	FIGURES 136–156. Sellaphora antarctica sp. nov. LM and part of the SEM pictures taken from the holotype population (sample BYM051) from Livingston Island (South Shetland Islands). 136–153. LM views of 18 valves from the type population. Figs 152–153 represent girdle view. 154. SEM of an entire valve, external view (picture taken from James Ross Island, sample JRI-004). 155. SEM of the valve exterior, showing the mantle and girdle. 156. SEM of an entire valve, internal view (picture taken from James Ross Island, sample JRI-11). Arrow indicates the shallow depression present at each apex. Scale bar represents 10 μm except for fig. 154 where scale bar = 5 μm and figs 155 and 156 where scale bar = 2 μm.	2016-08-26	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De		Zenodo	biologists	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De			
03FF7D6EFFA71F77FF0C5780FA4BF643.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13647386/files/figure.png	https://doi.org/10.5281/zenodo.13647386	FIGURES 157–177. Sellaphora gracillima sp. nov. LM and most of the SEM pictures taken from the holotype population (sample BY049) from Livingston Island (South Shetland Islands).157–174. LM views of 18 valves from the type population.175. SEM of an entire valve, external view. 176. SEM of an entire valve, internal view. 177. SEM of an entire valve, showing the valve mantle and girdle (picture taken from Livingston Island, sample BY051). Scale bar represents 10 μm except for figs 175–177 where scale bar = 5 μm.	FIGURES 157–177. Sellaphora gracillima sp. nov. LM and most of the SEM pictures taken from the holotype population (sample BY049) from Livingston Island (South Shetland Islands).157–174. LM views of 18 valves from the type population.175. SEM of an entire valve, external view. 176. SEM of an entire valve, internal view. 177. SEM of an entire valve, showing the valve mantle and girdle (picture taken from Livingston Island, sample BY051). Scale bar represents 10 μm except for figs 175–177 where scale bar = 5 μm.	2016-08-26	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De		Zenodo	biologists	Zidarova, Ralitsa;Kopalová, Kateřina;Vijver, Bart Van De			
