On the morphology and taxonomy of Parlibellus Crucicula (Bacillariophyta)

A study of the phytoplankton of the water bodies and watercourses in the Yarayakha River and Naduiyakha River basins (the Yamal Peninsula) has revealed a wide morphological variability of the quantitative diagnostic features in Parlibellus crucicula : valve length and width, the number of striae and...

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Published inInland water biology Vol. 10; no. 4; pp. 355 - 359
Main Authors Genkal, S. I., Yarushina, M. I.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.10.2017
Springer Nature B.V
Subjects
Biodiversity
Biology
Biomedical and Life Sciences
Diagnostic systems
Freshwater & Marine Ecology
Genetic variability
Geoecology/Natural Processes
Life Sciences
Morphology
New combinations
Phytoplankton
River basins
Rivers
Systematics of Hydrobionts
Taxonomic revision
Taxonomy
Watercourses
comb. nov
Yamal Peninsula
morphology
diatom
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Summary:A study of the phytoplankton of the water bodies and watercourses in the Yarayakha River and Naduiyakha River basins (the Yamal Peninsula) has revealed a wide morphological variability of the quantitative diagnostic features in Parlibellus crucicula : valve length and width, the number of striae and areolae in 10 μm, and the stria density in the middle part of the valve. A number of the features (raphe structure, presence of pseudosepta, and obliquely oriented oval areolae) typical for the genus Prestauroneis have been found in Parlibellus crucicula . This makes it possible to define this species as belonging to the genus Prestauroneis and to form a new combination, Prestauroneis crucicula (W. Smith) Genkal et Yarushina comb. nov.
ISSN:1995-0829
1995-0837
DOI:10.1134/S1995082917040058