taxonID	type	description	language	source
03FF7D6EFFAA1F7BFF0C56A3FB17F0FD.taxon	materials_examined	Type: — ANTARCTICA. South Shetland Islands: Livingston Island, Byers Peninsula, sample BY 062 (62 ° 38 ’ 34.5 ” S, 61 ° 00 ’ 39.5 ” W, 80 m a. s. l.), B. Van de Vijver, 17 January 2009 (holotype BR! 4449, isotype PLP! 303).	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFAA1F7BFF0C56A3FB17F0FD.taxon	etymology	Etymology: — The specific epithet ‘ australis ’ (Latin for ‘ southern’) refers to the geographic distribution of the new species.	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFAA1F7BFF0C56A3FB17F0FD.taxon	biology_ecology	Ecology and confirmed distribution: — Caloneis australis has been observed with certainty on all major islands of the South Shetland Archipelago and on James Ross Island. It is however likely that the species is more widespread in the region but up to now it has been reported probably under the name of Caloneis bacillum. Careful analysis of all past records of the latter taxon in Antarctica should lead to a better biogeographical distribution of the new species. Large populations of Caloneis australis are typical in both larger lakes and small pools on the islands with a slightly alkaline pH (7.1 – 7.8), low to moderate conductivity (50 – 670 μS / cm) and low nutrient and sulphate levels. Family Pinnulariaceae	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFAA1F7CFF0C53EFFC50F2BB.taxon	materials_examined	Type: — ANTARCTICA. James Ross Island: Lachman 2 Lake, sample JRI-D 02 (63 ° 47 ’ 59.9 ” S, 57 ° 48 ’ 31.1 ” W), L. Nedbalová, 22 January 2008 (holotype BR! 4450, isotype PLP! 304).	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFAA1F7CFF0C53EFFC50F2BB.taxon	etymology	Etymology: — The specific epithet refers to the overall elliptic shape of the valves of this species.	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFAA1F7CFF0C53EFFC50F2BB.taxon	biology_ecology	Ecology and confirmed distribution: — Chamaepinnularia elliptica has been found on several localities in the Maritime Antarctic Region, although never in large populations. The largest populations were observed on James Ross Island and Livingston Island. On James Ross Island, the species was found in a large, coastal lake with an almost circumneutral pH (7.3) and a low conductivity value (120 μS / cm). On Livingston Island, the largest population was recorded in a circumneutral (pH 6.7) run-off river from the Rotch Dome ice cap bordering Byers Peninsula. Only a few valves were observed on King George Island and Nelson Island (South Shetland Islands) among cyanobacterial mats and green algae on the bottom of small pools and on very wet soils. Family Cosmioneidaceae	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFAC1F7EFF0C50EFFD5FF7AF.taxon	materials_examined	Type: — ANTARCTICA. South Shetland Islands: King George Island, Fildes Peninsula, sample KGI 9 (62 ° 11 ’ 34.0 ” S, 58 ° 55 ’ 47.6 ” W), B. Uzunov, 30 January 2013 (holotype BR! 4451, isotype PLP! 305).	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFAC1F7EFF0C50EFFD5FF7AF.taxon	etymology	Etymology: — The specific epithet ‘ regigeorgiensis ’ refers to the island where the species was described from: King George Island, ‘ regi ’ (from Latin ‘ rex ’, meaning king) and ‘ georgiensis ’ (from George).	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFAC1F7EFF0C50EFFD5FF7AF.taxon	biology_ecology	Ecology and confirmed distribution: — Cosmioneis regigeorgiensis has only been found in the type locality on King George Island. The sample was an endolithic algal sample, taken from a cracked coastal rock. The dominant species in the sample was Humidophila vojtajarosikii Kopalová et al. in Kopalová et al. (2015: 126) and contained, besides other Humidophila taxa and several Luticola species, Achnanthes taylorensis D. E. Kellogg et al. (1980: 174 – 175) and several marine species, probably blown on the rock surface by seasprays. Family Naviculaceae	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFAF1F7EFF0C551AFC36F323.taxon	materials_examined	Type: — ANTARCTICA. James Ross Island: Ulu Peninsula, Nadĕje Lake, sample D 24 (63 ° 48 ’ 51.9 ” S, 57 ° 50 ’ 05.6 ” W), L. Nedbalová, 13 February 2008 (holotype BR! 4452, isotype PLP! 306).	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFAF1F7EFF0C551AFC36F323.taxon	etymology	Etymology: — The specific epithet refers to Drs. Maxime Sweetlove (Ghent University, Belgium), member of the CCAMBIO project.	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFAF1F7EFF0C551AFC36F323.taxon	biology_ecology	Ecology and confirmed distribution: — Mayamaea sweetloveana has up to now only been found in a few samples from James Ross Island. Due to confusion with other Mayamaea taxa such as M. atomus (Kützing 1844: 108) Lange-Bertalot (1997: 72) and M. permitis (Hustedt 1945: 919) Bruder & Medlin (2008: 327), its actual distribution is not entirely clear. The largest population (almost 75 % of all counted valves) was observed in Nadĕje Lake, a cirque lake on Ulu Peninsula (James Ross Island). This is a rather shallow lake at an elevation of 240 m a. s. l. with an alkaline pH (8.4), low conductivity (<250 μS / cm) and low nutrient and phosphate values.	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFAF1F70FF0C5096FE95F2FF.taxon	materials_examined	Type: — ANTARCTICA. South Shetland Islands: Deception Island, sample D 37 (62 ° 59 ’ 25.5 ” S, 60 ° 37 ’ 31.7 ” W), R. Zidarova, 24 January 2013 (holotype BR! 4453, isotype PLP! 307). FIGURES 46 – 58. Mayamaea sweetloveana sp. nov. LM & SEM pictures taken from the holotype population (sample D 24) from James Ross Island. 46 – 56. LM views of 11 valves from the type population. 57. SEM of an entire valve, external view. 58. SEM of an entire valve, internal view. Scale bar represents 10 μm except for figs 57 and 58 where scale bar = 5 μm.	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFAF1F70FF0C5096FE95F2FF.taxon	etymology	Etymology: — The specific epithet refers to Dr. Bjorn Tytgat (University of Ghent), member of the CCAMBIO project.	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFAF1F70FF0C5096FE95F2FF.taxon	biology_ecology	Ecology and confirmed distribution: — Mayamaea tytgatiana has up to now only been found in a few samples from Deception Island (South Shetland Islands). The largest population was observed on almost dry mosses growing in a small crack of a costal rock. The accompanying diatom flora included typically aerophilic diatom taxa, such as various Luticola and Humidophila species. Family Neidiaceae Genus Muelleria	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFA01F73FF0C56A3FEE3F584.taxon	materials_examined	Type: — ANTARCTICA. South Shetland Islands: Nelson Island, sample NI 26 (62 ° 14 ’ 10.1 ” S, 59 ° 00 ’ 05.6 ” W), R. Zidarova, 20 February 2013 (holotype BR! 4454, isotype PLP! 308).	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFA01F73FF0C56A3FEE3F584.taxon	etymology	Etymology: — The species is named after Prof. Dr. Christo Pimpirev (Bulgarian Antarctic Institute), a leader of 24 Bulgarian Antarctic expeditions, to acknowledge his personal long-term dedication to Antarctica, and without whom Bulgarian scientific campaigns on the South Shetland Islands would not have been possible.	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFA01F73FF0C56A3FEE3F584.taxon	biology_ecology	Ecology and confirmed distribution: — Muelleria pimpireviana has been rarely observed on several islands of the South Shetland Archipelago (Nelson Island, King George Island and Livingston Island). The largest population was found in a moist, circumneutral (pH 7.1) soil at the base of a coastal rock on Nelson Island. The accompanying diatom flora included several other Muelleria species and various Luticola and Pinnularia taxa. Occasionally, the species was also observed on wet terrestrial mosses and on the bottom of a shallow pool. Family Naviculaceae Genus Navicula	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFA21F73FF0C5734FE89F0D8.taxon	materials_examined	Type: — ANTARCTICA. James Ross Island: soil near Muddy Lake, sample JRI-D 18 (63 ° 51 ’ 50.1 ” S, 57 ° 57 ’ 12.2 ” W), L. Nedbalová, 1 February 2008 (holotype BR! 4455, isotype PLP! 309).	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFA21F73FF0C5734FE89F0D8.taxon	etymology	Etymology: — The species is named after Mr. Roman Edward, a sailor and zodiac boat driver during several Bulgarian Antarctic expeditions, in recognition of his help in the scientific activities on Livingston Island.	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFA21F73FF0C5734FE89F0D8.taxon	biology_ecology	Ecology and confirmed distribution: — Navicula romanedwardii is a widely distributed species in Maritime Antarctica, observed on all major islands of the South Shetland Archipelago and on James Ross Island. The species had also been recorded on the Antarctic continent (see Van de Vijver et al. 2011 b). On James Ross Island, the largest populations were found in the epipelon and epilithon of larger lakes, having an almost circumneutral to slightly alkaline pH (6.8 – 7.6), moderate to high specific conductance values (100 – 200 μS / cm) and moderate nutrient values (TP 46 – 592 μg / L), together with various Nitzschia species. On the South Shetland Islands Navicula romanedwardii was observed in a variety of habitats, ranging from small pools and streams to moss vegetation cover and soils, but usually in low abundances. A large population was found on Deception Island (South Shetland Islands) on almost dry mosses. Occasionally, the species was also observed in seepage areas. Family Pinnulariaceae Genus Pinnularia	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFA21F74FF0C5390FD41F2EE.taxon	materials_examined	Type: — ANTARCTICA. South Shetland Islands: Deception Island, sample CC 2 (62 ° 58 ’ 24.0 ” S, 60 ° 42 ’ 30.0 ” W), G. Mataloni, February 2002 (holotype BR! 4456, isotype PLP! 310).	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFA21F74FF0C5390FD41F2EE.taxon	etymology	Etymology: — The species is named after Drs. Eveline Pinseel in recognition of her important scientific contributions to the taxonomy and morphology of the genus Pinnularia, more specifically the Pinnularia borealis - complex.	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFA21F74FF0C5390FD41F2EE.taxon	biology_ecology	Ecology and confirmed distribution: — Pinnularia pinseeliana is a rare species and only found in some soil samples on Deception Island (South Shetland Archipelago). The largest population was observed in a warm soil at Cerro Caliente. The soil had a temperature of 19.1 ° C and was further characterized in having a weakly acid pH (6.3), a very low conductivity (50 μS / cm) and a rather high amount of organic matter (6.5 %) (Fermani et al. 2007). Family Sellaphoraceae	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFA41F76FF0C56A3FD72F4C8.taxon	materials_examined	Type: — ANTARCTICA. South Shetland Islands: Livingston Island, Byers Peninsula, sample BYM- 051 (62 ° 38 ’ 20.1 ” S, 61 ° 06 ’ 44.2 ” W, 60 m a. s. l.), B. Van de Vijver, 15 January 2009 (holotype BR! 4457, isotype PLP! 311).	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFA41F76FF0C56A3FD72F4C8.taxon	etymology	Etymology: — The specific epithet refers to the region where the species was first discovered. Ecology and confirmed distribution: — Due to possible confusion with Sellaphora seminulum (Grunow 1860: 552) D. G. Mann (1989: 2) in the past the exact distribution of S. antarctica based on literature data is not known. The new species has been found with certainty on Livingston Island and King George Island (South Shetland Islands) and on James Ross Island. Under the name Sellaphora cf. seminulum it was also reported from Signy Island (South Orkney Islands) and Beak Island (Antarctic Peninsula area) by Sterken et al. (2015, figs 3 BR-BT). The largest population of Sellaphora antarctica was found living on submerged mosses in a large lake having a circumneutral pH (7.3) and a low conductivity level (<100 μS / cm). The sample was dominated by several Psammothidium (Grunow in Cleve & Grunow 1880: 21) Bukhtiyarova & Round (1996: 3) taxa.	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFA71F77FF0C5780FA4BF643.taxon	materials_examined	Type: — ANTARCTICA. South Shetland Islands: Livingston Island, Byers Peninsula, sample BY 049 (62 ° 38 ’ 43.1 ” S, 61 ° 02 ’ 22.9 ” W, 75 m a. s. l.), B. Van de Vijver, 14 January 2009 (holotype BR! 4458, isotype PLP! 312).	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFA71F77FF0C5780FA4BF643.taxon	etymology	Etymology: — The specific epithet ‘ gracillima ’ refers to the fine striation of the species.	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
03FF7D6EFFA71F77FF0C5780FA4BF643.taxon	biology_ecology	Ecology and confirmed distribution: — Sellaphora gracillima has been probably reported in the past as Eolimna (Navicula) minima (Grunow in Van Heurck 1880: 107) Lange-Bertalot in Moser et al. (1998: 153) or as Navicula tantula Hustedt (1943: 162) on several localities in the Maritime Antarctic Region (Kellogg & Kellogg 2002, Kopalová & Van de Vijver 2013, Kopalová et al. 2013, 2014, Sterken et al. 2015, figs 3 AX, AY). So far, it is only with certainty present on Livingston Island, South Shetland Islands. The largest population was observed in a lake situated on the main central plateau on Byers Peninsula, next to Limnopolar Lake at an altitude of 75 m. The lake has a pH of 7.6 with a conductivity value of 60 μS / cm. Both nutrient and mineral levels are quite low (Kopalová & Van de Vijver 2013).	en	Zidarova, Ralitsa, Kopalová, Kateřina, Vijver, Bart Van De (2016): Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region). Phytotaxa 272 (1): 37-62, DOI: 10.11646/phytotaxa.272.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.272.1.2
