Two new Halamphora (Bacillariophyta) species from the marine coasts off Livingston Island, Antarctica

By

Zidarova, Ralitsa
Ivanov, Plamen
Dzhembekova, Nina
de Haan, Myriam
Van De Vijver, Bart

Type

Article

Date of Publication

2022

Original Publication

PhytoKeys

Volume

195

Pages

161--174

Subjects

Amphora sensu lato , Diatoms , marine benthos , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.195.81632

 

Abstract

During a survey of the marine benthic diatom flora on the coasts off Livingston Island (South Shetland Islands, Maritime Antarctic Region), two Halamphora species that could not be identified based on the currently available literature, were observed. Detailed light and scanning electron microscopy observations and thorough comparison with similar taxa in the literature revealed that both taxa should be described as new species. The first taxon, Halamphora kenderovianasp. nov., was most likely misidentified in past Antarctic studies, and included within the range of another taxon, Halamphora coffeaeformis. Analysis of literature data showed that the second new taxon, Halamphora monchevianasp. nov., has been previously reported from the Antarctic Continent (but as an unidentified species). The new taxa are compared with similar Halamphora taxa worldwide. Data on their ecology and distribution are also provided.