4.2 Article

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

期刊

PHYTOKEYS
卷 -, 期 195, 页码 161-174

出版社

PENSOFT PUBLISHERS
DOI: 10.3897/phytokeys.195.81632

关键词

Amphora sensu lato; diatoms; marine benthos; taxonomy

资金

  1. National Center for Polar Studies, Bulgaria [80-10-239/2018, 70.25-175/2019]

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During a survey in the Maritime Antarctic Region, two new marine benthic diatom species were discovered. Through detailed observation and comparison with existing literature, it was determined that these species were previously unidentified. The findings contribute to a better understanding of diatom diversity in the region.
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 kenderoviana sp. 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 moncheviana sp. 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.

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