The Macrobiotus hufelandi group (Tardigrada) revisited

Łukasz Kaczmarek, Łukasz Michalczyk

    Research output: Contribution to journalArticlepeer-review

    64 Citations (Scopus)


    Species of the Macrobiotus hufelandi group are one of the most often recorded tardigrades throughout the globe. For over a century M. hufelandi has been considered cosmopolitan but in recent decades numerous species of similar morphologies have been described from various continents, which suggests that what was originally defined as a single taxon is, in fact, a complex of species. The definition of the hufelandi group is subject to a long-standing discussion and in this paper we propose a refined set of characters that are hoped to elucidate the taxonomic status of the group. In order to aid interspecific comparisons, we also propose a unified nomenclature for the crucial morphological traits and clarify morphometric methodology. Finally, we provide a diagnostic key to the currently known species of the group.

    Original languageEnglish
    Pages (from-to)101-123
    Number of pages23
    Issue number1
    Publication statusPublished - 8 Dec 2017


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