Abstract
A new Ctenophora wojtaliae sp. nov. is described from a unique microenvironment in the highly alkaline (pH 9.4) Göydün spring in the Eastern Anatolia. Valves of C. wojtaliae are linear and slightly lanceolate, with broadly rounded apices. The new taxon is similar to Ctenophora pulchella (Kützing) D.M.Williams & Round, C. saxonica (Kützing) D.M.Williams & Van de Vijver, C. sinensis B.Liu & D.M.Williams and C. subula (Sande Lacoste & Suringar) D.M.Williams & Van de Vijver. Unlike the other taxa, C. wojtaliae has longer specimens and a thickened ridge at the central area form a rectangular not circular structure.
References
- Ferreira, T. & Rasband, W. (2012) ImageJ User Guide-IJ1.46r. [http://imagej.nih.gov/ij/docs/guide]
- Gregory, W. (1855) On the post-Tertiary lacustrine sand containing diatomaceous exuviae from Glenshire near Inverary. Quarterly Journal of Microscopical Science 3: 30–43. https://doi.org/10.1242/jcs.s1-3.9.30
- Guiry, M.D. & Guiry, G.M. (2025) AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Available from: https://www.algaebase.org (accessed 30 April 2025)
- Kaçaroğlu, F., Değirmenci, M. & Cerit, O. (1997) Karstification in Miocene gypsum: an example from Sivas, Turkey. Environmental Geology 30 (1): 88–97. https://doi.org/10.1007/s002540050136
- Kützing, F.T. (1844) Die Kieselschaligen Bacillarien oder Diatomeen. pp. 1–152. https://doi.org/10.5962/bhl.title.64360
- Lange-Bertalot, H., Hofmann, G., Werum, M. & Cantonati, M. (2017) Freshwater benthic diatoms of Central Europe: over 800 common species used in ecological assessment. Koeltz Botanical Books, Schmitten-Oberreifenberg, Germany, 942 pp.
- Liu, B., Williams, D.M., Liu, Z.X. & Chen, J.H. (2020) Ctenophora sinensis: A new diatom species (Bacillariophyta) from China with comments on its structure, nomenclature and relationships. Phytotaxa 460 (2): 115–128. https://doi.org/10.11646/phytotaxa.460.2.1
- Nakov, T., Beaulieu, J.M. & Alverson, A.J. (2018) Accelerated diversification is related to life history and locomotion in a hyperdiverse lineage of microbial eukaryotes (diatoms, Bacillariophyta). New Phytologist 219: 462–473. https://doi.org/10.1111/nph.15137
- Round, F.E., Crawford, R.M. & Mann, D.G. (1990) The diatoms. Biology and morphology of the genera. Cambridge University Press, Cambridge, 747 pp.
- Swift, E. (1967) Cleaning diatom frustules with ultraviolet radiation and peroxide. Phycologia 6: 161–163. https://doi.org/10.2216/i0031-8884-6-2-161.1
- Taylor, J.C., Harding, W.R. & Archibald, C.G.M. (2007) A methods manual for the collection, preparation and analysis of diatom samples. Version 1:60.
- Williams, D.M. & Round, F.E. (1986) Revision of the genus Synedra Ehrenb. Diatom Research 1 (2): 313–339. https://doi.org/10.1080/0269249X.1986.9704976
- Williams, D.M. & Van de Vijver, B. (2023a) The diatom genus Ctenophora: A discussion on its morphology, relationships, and some species. Phytotaxa 632 (1): 1–26. https://doi.org/10.11646/phytotaxa.632.1.1
- Williams, D.M. & Van de Vijver, B. (2023b) An electron microscope study and re-description of the type-specimens of Synedra subula and its transfer to Ctenophora (Bacillariophyta). Phytotaxa 629 (2): 176–180. https://doi.org/10.11646/phytotaxa.629.2.7
- Xiang, D.-Q., Yang, R., Rioual, P., Zheng, Y. & Liu, B. (2024) Ctenophora hunanensis sp. nov. (Bacillariophyta) from the Yongle River in Hunan Province, China. PhytoKeys 250: 181–191. https://doi.org/10.3897/phytokeys.250.140576
