Aulacoseira glubokoyensis sp. nov. (Bacillariophyceae), a new centric diatom from the Maritime Antarctic region

A new centric diatom, Aulacoseira glubokoyensis sp. nov., is described from the Maritime Antarctic region. The morphology of the species is illustrated using detailed light and scanning electron microscopy observations. Its main discriminating features include the presence of typical irregularly sha...

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Bibliographic Details
Published in:Phytotaxa
Main Authors: OAQUIM, ANNA BEATRIZ JONES, MOSER, GLEYCI A.O., EVANGELISTA, HEITOR, LICÍNIO, MARCUS VINÍCIUS, VAN DE VIJVER, BART
Format: Article in Journal/Newspaper
Language:English
Published: Phytotaxa 2017
Subjects:
Maritime Antarctic Region
morphology
sediment core
ultrastructure
Algae
Antarctic
King George Island
South Shetland Islands
Fildes
Fildes peninsula
Profound Lake
Antarc*
Online Access:http://www.mapress.com/j/pt/article/view/phytotaxa.328.2.5
https://doi.org/10.11646/phytotaxa.328.2.5
Description
Summary:A new centric diatom, Aulacoseira glubokoyensis sp. nov., is described from the Maritime Antarctic region. The morphology of the species is illustrated using detailed light and scanning electron microscopy observations. Its main discriminating features include the presence of typical irregularly shaped dendritic spines, at least two rimoportulae, marginal striae on the discus and a very large Ringleiste. The new species is compared to similar species worldwide. Aulacoseira glubokoyensis has only been observed in a sediment core taken from Profound Lake on the Fildes Peninsula (King George Island, South Shetland Islands).

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