Integrative taxonomy identifies two new tardigrade species (Eutardigrada: Macrobiotidae) from Greenland

In this paper we describe Macrobiotus engbergi sp. nov. and Tenuibiotus zandrae sp. nov. from Greenland. Our study has involved both classical taxonomic methods, which include morphological and morphometric analyses conducted with the use of light and scanning electron microscopy, and genetic analys...

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Bibliographic Details
Published in:European Journal of Taxonomy
Main Authors: Daniel Stec, Denis T. Tumanov, Reinhardt Møbjerg Kristensen
Format: Article in Journal/Newspaper
Language:English
Published: Consortium of European Natural History Museums 2020
Subjects:
Arctic
egg ornamentation
Macrobiotus hufelandi complex
Tardigrada
Tenuibiotus voronkovi
Zoology
QL1-991
Botany
QK1-989
Edgeøya
Greenland
Nordaustlandet
Norway
Svalbard
Tardigrade
Online Access:https://doi.org/10.5852/ejt.2020.614
https://doaj.org/article/f57f7099a2e541168eb3ee41bdf3c356
Description
Summary:In this paper we describe Macrobiotus engbergi sp. nov. and Tenuibiotus zandrae sp. nov. from Greenland. Our study has involved both classical taxonomic methods, which include morphological and morphometric analyses conducted with the use of light and scanning electron microscopy, and genetic analysis based on four molecular markers (three nuclear: 18S rRNA, 28S rRNA, ITS-2, and one mitochondrial: COI). Moreover, we re-examined the type series of Tenuibiotus voronkovi (Tumanov, 2007) as well as the original sample where the species was found and we provide new morphological data from light and scanning electron microscopy which enabled us to amend its description. Finally, we also analysed slides with animals and egg of two populations from Nordaustlandet and Edgeøya (archipelago of Svalbard, Norway) designated as T. voronkovi within its recent redescription. The results and comparisons presented in our study question the validity of this designation.

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