taxonID	type	description	language	source
039BB059E6059B16FF0EFA80FF374C9B.taxon	materials_examined	Type: — SOUTH SHETLAND ISLANDS. King George Island: Potter Cove (62.14 o S, 58.46 o W), epiphytic on G. confluens. Sample BRM R 1272 (holotype: BRM! Zu 10 / 68, illustrated in Fig. 29).	en	Thomas, Evan W., Ligowski, Ryszard (2016): Rhoicosphenia kloseri, a new isopolar Rhoicosphenia (Bacillariophyta) species from the Antarctic with comparison to other isopolar Rhoicosphenia. Phytotaxa 265 (1): 50-58, DOI: 10.11646/phytotaxa.265.1.4, URL: http://dx.doi.org/10.11646/phytotaxa.265.1.4
039BB059E6059B16FF0EFA80FF374C9B.taxon	etymology	Etymology: — Named in honor of Dr. Heinz Klöser, naturalist, ecologist, marine diatomist, and friend. Taxonomic remarks and differential diagnosis: — Rhoicosphenia kloseri is most easily distinguished from the other isopolar Rhoicosphenia by its narrow valves, 2.7 – 3.8 μm in width. At its longest, R. kloseri that we observed and documented are 27 μm with a width of 3.8 μm. At its smallest, the type of R. adolfii is 21 μm with a width of 4.5 μm. This means that the smallest R. adolfii is wider than R. kloseri of comparable size, a key feature in demonstrating how narrow the valves of R. kloseri are when compared to other isopolar Rhoicosphenia. A comparison of the morphometric features of R. kloseri to the other isopolar Rhoicosphenia taxa, R. genuflexa, R. adolfii, and R. pullus, is presented in Table 1.	en	Thomas, Evan W., Ligowski, Ryszard (2016): Rhoicosphenia kloseri, a new isopolar Rhoicosphenia (Bacillariophyta) species from the Antarctic with comparison to other isopolar Rhoicosphenia. Phytotaxa 265 (1): 50-58, DOI: 10.11646/phytotaxa.265.1.4, URL: http://dx.doi.org/10.11646/phytotaxa.265.1.4
039BB059E6059B16FF0EFA80FF374C9B.taxon	distribution	Distribution: — Known from various localities in the South Shetland Islands from epiphytes on Georgiella confluens. Rhoicosphenia kloseri is found also on the seabed in shallow sublittoral at depths ranging from 2 to 25 meters.	en	Thomas, Evan W., Ligowski, Ryszard (2016): Rhoicosphenia kloseri, a new isopolar Rhoicosphenia (Bacillariophyta) species from the Antarctic with comparison to other isopolar Rhoicosphenia. Phytotaxa 265 (1): 50-58, DOI: 10.11646/phytotaxa.265.1.4, URL: http://dx.doi.org/10.11646/phytotaxa.265.1.4
