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The first record of Tardigrada from the Republic of Zambia, with a description of Doryphoribius niedbalai sp. nov. (Eutardigrada: Hypsibiidae, the evelinae group)

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Author(s): Krzysztof Piotr Zawierucha

Journal: African Zoology
ISSN 1562-7020

Volume: 47;
Issue: 2;
Date: 2013;
Original page

Keywords: Africa | Doryphoribius niedbalai sp. nov. | evelinae group | Milnesium tetralamellatum | Paramacrobiotus vanescens | Tardigrada | Zambia

ABSTRACT
In three mixed samples (mosses and leaf litter) collected in the Republic of Zambia (Southern Africa), forty three specimens and six eggs of eutardigrades were found. Among them, twenty nine specimens belonged to a new species of the family Hypsibiidae, Doryphoribius niedbalai sp. nov. The new species belongs to the Doryphoribius evelinae group and it differs from other members of the group mainly by a different number and configuration of dorsal gibbosities as well as by some morphometric characters. Apart from the new species, the examined material contained also two rare African eutardigrades: Milnesium tetralamellatum and Calcarobiotus (Calcarobiotus) parvicalcar. These species are recorded for the first time outside their type localities. Additionally, Paramacrobiotus vanescens is recorded for the fourth time from Africa. In this paper, together with the description of the new species, first ever photomicrographs of Milnesium tetralamellatum and Paramacrobiotus vanescens are also given. This is the first account of the phylum Tardigrada from the Republic of Zambia.
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