UDC 581.4
This scanning electron microscopy study investigates the morphology of two species of the diatom genus Surirella (S. barrowcliffia, S. didyma) from phytobenthos of the Kilmez River (Udmurtia). Some analyzed quantitative characters (valve length and width, number of costae in 10 μm) manifested greater variability in comparison with the literature data, which allowed us to refine their diagnoses. Analysis of the literature showed that the discovery of S. barrowcliffia in the Kilmez River is the first for the flora of Russia.
Kilmez River (Udmurtia), phytobenthos, Bacillariophyta, Surirella, morphology, electron microscopy
1. Balonov I.M. Podgotovka vodorosley k elektronnoy mikroskopii // Metodika izucheniya biogeocenozov. M.: Nauka, 1975. C. 87–89.
2. Genkal S.I., Bondarenko N.A., Schur L.A. Diatomovye vodorosli ozer yuga i severa Vostochnoy Sibiri. Rybinsk: Izd-vo “Rybinskiy Dom pechati”, 2011. 72 c.
3. Genkal C.I., Vehov N.V. Diatomovye vodorosli vodoemov Russkoy Arktiki: arhipelag Novaya Zemlya i ostrov Vaygach. M.: Nauka, 2007. 64 c.
4. Genkal C.I., Gabyshev V.A. Katalog diatomovyh vodorosley vodoemov Ust'-Lenskogo zapovednika i sopredel'nyh territoriy. Novosibirsk: Nauka, 2023. 128 c.
5. Genkal C.I., Trifonova I.C. Diatomovye vodorosli planktona Ladozhskogo ozera i vodoemov ego basseyna. Rybinsk: “Rybinskiy dom pechati”, 2009. 72 s.
6. Genkal S.I., Chekryzheva T.A., Komulaynen S.F. Diatomovye vodorosli vodoemov i vodotokov Karelii. M.: Nauchnyy mir, 2015. 202 s.
7. Genkal C.I., Yarushina M.I. Diatomovye vodorosli slaboizuchennyh vodnyh ekosistem Kraynego Severa Zapadnoy Sibiri. M.: Nauchnyy mir, 2018. 212 c.
8. Zaharova V.I., Kuznecova L.V., Ivanova E.I. i dr. Raznoobrazie rastitel'nogo mira Yakutii. Novosibirsk: Izd-vo SO RAN, 2005. 328 s.
9. Komulaynen S.F., Chekryzheva T.A., Vislyanskaya I.G. Al'goflora ozer i rek Karelii. Taksonomicheskiy sostav i ekologiya. Petrozavodsk: Karel'skiy nauchnyy centr RAN, 2006. 78 s.
10. Kulikovskiy M.S., Gluschenko A.N., Genkal S.I., Kuznecova I.V. Opredelitel' diatomovyh vodorosley Rossii. Yaroslavl': Filigran', 2016. 804 s.
11. Levadnaya G.D. Mikrofitobentos reki Enisey. Novosibirsk: Nauka, 1986. 286 c.
12. Loseva E.I. Atlas presnovodnyh pleystocenovyh diatomey Evropeyskogo Severo-Vostoka. SPb.: Nauka, 2000. 211 c.
13. Medvedeva L.A., Nikulina T.V. Katalog presnovodnyh vodorosley yuga Dal'nego Vostoka Rossii. Vladivostok: Dal'nauka, 2014. 271 c.
14. Opredelitel' presnovodnyh vodorosley SSSR. Vyp. 4. Diatomovye vodorosli. M.: Sovetskaya nauka, 1951. 619 s.
15. Udmurtskaya respublika. Enciklopediya. Izhevsk: Izdatel'stvo “Udmurtiya”, 2000. 800 s.
16. Haritonov V.G. Diatomovye vodorosli Kolymy. Magadan: Kordis, 2014. 496 c.
17. Haritonov V.G., Genkal C.I. Diatomovye vodorosli ozera El'gygytgyn i ego okrestnostey (Chukotka). Magadan: SVNC DVO RAN, 2012. 402 c.
18. Ceplik N.D., Chudaev D.A. Materialy k flore shovnyh diatomovyh vodorosley Zvenigorodskoy biologicheskoy stancii MGU. Moskva: Tovarischestvo nauchnyh izdaniy KMK, 2023. 168 c.
19. Chudaev D.A., Gololobova M.A. Diatomovye vodorosli ozera Glubokogo (Moskovskaya oblast'). M.: Tovarischestvo nauchnyh izdaniy KMK, 2016. 447 c
20. Yarushina M.I., Tanaeva G.V., Eremkina T.V. Flora vodorosley vodoemov Chelyabinskoy oblasti. Ekaterinburg: UrO RAN, 2004. 308 c.
21. Bukhtiyarova I.N. Bacillariophyta of the Yavorivsky National Park, Broadleaf Forest Zone of Ukraine, including Saloneis albus-columba, sp. nov. // Biosystems Diversity. 2021. Vol. 29(2). P. 185–194. DOI:https://doi.org/10.15421/012123.
22. Guiry M.D., Guiry G.M. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. 2014. https://www.algaebase.org; searched on 11 October 2025
23. Krammer K., Lange-Bertalot H. Bacillariophyceae. Teil 2. Epithemiaceae, Bacillariaceae, Surirellaceae // Die Süsswasserflora von Mitteleuropa. Stuttgart: Gustav Fischer Verlag, 1988. 536 s.
24. Szulc B., Szulc K. Surirella barrowcliffia Donkin 1869 (Bacillariophyta, Surirellaceae): the first observation of the diatom in Poland // Oceanological and Hydrobiological Studies. 2017. Vol. 46, Iss. 4. DOI:https://doi.org/10.1515/ohs-2017-0000.
25. Turpin P.J.F. Observations sur le nouveau genre Surirella // Mémoires du Musée d'Histoire Naturelle. 1828. Vol. 16. P. 361–368.
