The genus Surirella (Bacillariophyta) in the sub-Antarctic and maritime Antarctic region

A revision of taxa from the genus Surirella from the Antarctic region resulted in the description of three new taxa: S. subantarctica Van de Vijver & Cocquyt sp. nov., S. heardensis Van de Vijver & Cocquyt sp. nov. and S. australovisurgis Van de Vijver, Cocquyt, Zidarova & Kopalová sp. n...

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Bibliographic Details
Published in:Diatom Research
Main Authors: Van de Vijver, B., Cocquyt, Ch., De Haan, M., Kopalová, K. (Kateřina), Zidarova, R.
Format: Article in Journal/Newspaper
Language:English
Published: 2013
Subjects:
Bacillariophyta
Surirella
Antarctic
The Antarctic
Antarc*
Online Access:https://doi.org/10.1080/0269249X.2012.739975
http://hdl.handle.net/11104/0225604
Description
Summary:A revision of taxa from the genus Surirella from the Antarctic region resulted in the description of three new taxa: S. subantarctica Van de Vijver & Cocquyt sp. nov., S. heardensis Van de Vijver & Cocquyt sp. nov. and S. australovisurgis Van de Vijver, Cocquyt, Zidarova & Kopalová sp. nov. Detailed light (LM) and scanning electron microscope (SEM) observations are used to characterize these three new taxa. Comparisons with similar taxa and the ecological preferences of each species are added. The morphological characteristics of a fourth Antarctic Surirella taxon, S. kerguelensis Grunow are illustrated as this taxon was only known from a few hand drawings and LM pictures. Finally, a fifth taxon, S. lapponica A. Cleve was found on South Georgia and likewise illustrated. The revision of these species made clear that the genus Surirella showed similar biogeographical trends as other, previously revised genera indicating that a distinct Antarctic diatom flora exists.

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