WoRMS source details
Säring, Friederike; Bick, Andreas; Link, Heike. (2022). A new species of Anobothrus (Polychaeta, Ampharetidae) from the Weddell Sea (Antarctica), with notes on habitat characteristics and an updated key to the genus. European Journal of Taxonomy. 789(1): 130-152.
421895
10.5852/ejt.2022.789.1637 [view]
urn:lsid:zoobank.org:pub:BE630DB7-6B9F-47E3-8A63-54CDF6ABC413 [view]
Säring, Friederike; Bick, Andreas; Link, Heike
2022
A new species of Anobothrus (Polychaeta, Ampharetidae) from the Weddell Sea (Antarctica), with notes on habitat characteristics and an updated key to the genus
European Journal of Taxonomy
789(1): 130-152
Publication
World Polychaeta Database (WPolyD). Open access
Available for editors
[request]
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Benthic samples were collected during two expeditions near the Antarctic Peninsula and in the South-Eastern Weddell Sea. During these studies, a new species of Ampharetidae Malmgren, 1867, Anobothrus konstantini Säring & Bick sp. nov., was found. Here we present a detailed description of this species. We used the traditional light microscope and scanning electron microscope (SEM) to identify and describe the diagnostic characters: a circular glandular band on segment 6; an elongate ridge between the notopodia on segment 12 and modified notochaetae on this segment; 16 thoracic, two intermediate and ten abdominal segments. For the first time, micro-computed tomography (micro-CT) was used for a species description of Anobothrus. Micro-CT provided information on the shape of the prostomium (Ampharete-type) and the arrangement of branchiae (four pairs in two rows, without a gap). In addition, we provide quantitative information on the environmental niche based on sediment parameters (chlorophyll a content, organic matter content, chloroplast equivalent, grain size) for the new Anobothrus species, relevant for, e.g., species distribution modelling. Finally, an identification key for all Anobothrus species is provided.
Antarctic
Weddell Sea
Weddell Sea
Systematics, Taxonomy
Date
action
by
Anobothrus Levinsen, 1884 (identification resource)
Anobothrus konstantini Säring & Bick in Säring, Bick & Link, 2022 (original description)
Anobothrus konstantini Säring & Bick in Säring, Bick & Link, 2022 (original description)
Holotype ZSRO ZSRO-P2655, geounit Weddell Sea, identified as Anobothrus konstantini Säring & Bick in Säring, Bick & Link, 2022