New Bryodelphax species (Heterotardigrada: Echiniscidae) from Western Borneo (Sarawak), with new molecular data for the genus

New Bryodelphax species (Heterotardigrada: Echiniscidae) from Western Borneo (Sarawak), with new molecular data for the genus

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New Bryodelphax species (Heterotardigrada: Echiniscidae) from Western Borneo (Sarawak), with new molecular data for the genus

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Bibliographic description

punktacja MNiSW [2018 A]: 30

title:	New Bryodelphax species (Heterotardigrada: Echiniscidae) from Western Borneo (Sarawak), with new molecular data for the genus
author:	Gąsiorek Piotr
journal title:	The Raffles Bulletin of Zoology
volume:	66
date of publication :	2018
pages:	371-381
ISSN:	0217-2445
eISSN:	2345-7600
URL:	https://lkcnhm.nus.edu.sg/app/uploads/2018/01/66rbz371-381-.pdf
date accessed:	2019-02-20
notes:	Bibliogr. s. 379-381
language:	English
journal language:	English
abstract in English:	Bornean fauna belongs to the most speciose on the world, however many animal groups remain largely or completely unstudied in this region. Microscopic water bears (Tardigrada) are a good example of such group. Members of the genus Bryodelphax Thulin, 1928 are the smallest land heterotardigrades. The new species found in a moss sample, Bryodelphax arenosus sp. nov., is among the tiniest representatives of this genus, with mature females not exceeding 100 \mu m in body length. It differs from other congeners by having contrasting ornamentation of some elements of the dorsal armature formed by densely arranged intra-cuticular pillars, deep faceting of the scapular plate, and minute claws. Additional 18S and 28S rRNA sequences for the new taxon and recently described B. instabilis Gąsiorek & Degma, 2018 unequivocally support earlier heterotardigrade phylogeny reconstructions, with Bryodelphax being not included in the Echiniscus-line [((Echiniscus + Diploechiniscus), Testechiniscus), Hypechiniscus]. The phyletic position of Bryodelphax is discussed in the light of present data.
keywords in English:	biodiversity, Bryodelphax arenosus sp nov., morphology, phylogeny, Sunda Archipelago, tropics
affiliation:	Wydział Biologii : Instytut Zoologii i Badań Biomedycznych
type:	journal article
subtype:	academic paper