Anobothrus Levinsen 1844

• Main Authors: Säring, Friederike, Bick, Andreas, Link, Heike
• Format: Text
• Language: unknown
• Published: Zenodo 2022
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Terebellida; Ampharetidae; Anobothrus; Weddell Sea; Pacific; Weddell; Andreas; Malmgren; Antarc*; Antarctica; Kamchatka
• Online Access: https://dx.doi.org/10.5281/zenodo.6302067; https://zenodo.org/record/6302067

Genus Anobothrus Levinsen, 1844 Sosanides Hartmann-Schröder, 1965: 243–246. Anobothrella Hartman, 1967: 155–156. Melythasides Desbruyères, 1978: 232–246. Type species Ampharete gracilis Malmgren, 1866. Generic diagnosis (after Alalykina & Polyakova (2020), Bonifácio et al. (2015), Imajima et al. (2013), Jirkov (2009) and Reuscher et al. (2009)) Prostomium trilobed, Ampharete - type (Jirkov 2009), without glandular ridges. Buccal tentacles smooth or papillose. Segments 2 and 3 can be fused; notochaetae on either segment 2 or 3 reduced, or developed in both segments. Three or four pairs of smooth or papillose branchiae; three pairs arising from segments 2–4 arranged in a transverse row, with or without a gap; fourth pair, if present, behind this row and originating from segment 5. A pair of median nephridial papillae, if present, behind branchiae. Chaetae on segment 2 present and developed as paleae, or absent. Notopodia and notochaetae on segment 3 may be reduced or present. 16–17 thoracic segments, 14–16 thoracic chaetigers, and 11 or 12 thoracic uncinigers starting at segment 6. Notopodial cirri present or absent. Circular glandular band on thoracic unciniger 1, 2 or 3. Fourth-, fifth- or sixth-to-last thoracic unciniger with one, two or three modifications: elevated notopodia, a more or less pronounced glandular ridge between notopodia, and modified notochaetae. Subsequent thoracic uncinigers without modification but prolongated. One or two intermediate segments. Abdominal rudimentary notopodia absent. Pygidium with anus terminal, with or without numerous papillae, or with or without anal cirri. Remarks This generic diagnosis combines diagnoses proposed by Alalykina & Polyakova (2020), Bonifácio et al. (2015), Imajima et al. (2013), Jirkov (2009) and Reuscher et al. (2009), and follows the terminology of counts used by Imajima et al. (2012, 2013) and Reuscher et al. (2009). Ampharetidae are usually known for a constant number of thoracic chaetigers and uncinigers for adult individuals (Reuscher et al. 2009; Stiller et al. 2020 for exclusion of Melinnidae). : Published as part of 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, pp. 130-152 in European Journal of Taxonomy 789 on page 135, DOI: 10.5852/ejt.2022.789.1637, http://zenodo.org/record/5965393 : {"references": ["Hartmann-Schroder G. 1965. Zur Kenntnis des Sublitorals der chilenischen Kuste unter besonderer Berucksichtigung der Polychaeten und Ostracoden. II. Die Polychaeten des Sublitorals. Mitteilungen aus dem Hamburgischen zoologischen Museum und Institut 62, Supplement: 59 - 305.", "Malmgren A. J. 1866. Nordiska Hafs-Annulater. Ofversigt af Kungliga Vetenskapsakademiens Forhandlingar, Stockholm 22: 355 - 410.", "Alalykina I. L. & Polyakova N. E. 2020. New deep-sea species of Anobothrus (Annelida: Ampharetidae) from the Kuril-Kamchatka Trench and adjacent abyssal regions. Progress in Oceanography 182: e 102237. https: // doi. org / 10.1016 / j. pocean. 2019.102237", "Bonifacio P., Lavesque N., Bachelet G. & Parapar J. 2015. Anobothrus amourouxi sp. nov., a new species of Ampharetidae (Polychaeta) from the Capbreton Canyon (Bay of Biscay, NE Atlantic Ocean). Journal of the Marine Biological Association of the United Kingdom 95: 961 - 969. https: // doi. org / 10.1017 / S 0025315414002094", "Imajima M., Reuscher M. G. & Fiege D. 2013. Ampharetidae (Annelida: Polychaeta) from Japan. Part II: Genera with elevated and modified notopodia. Zootaxa 3647: 137 - 166. https: // doi. org / 10.11646 / zootaxa. 3647.1.7", "Jirkov I. A. 2009. Revision of Ampharetidae (Polychaeta) with modified thoracic notopodia. Invertebrate Zoology 5: 111 - 132. https: // doi. org / 10.15298 / invertzool. 05.2.03", "Reuscher M., Fiege D. & Wehe T. 2009. Four new species of Ampharetidae (Annelida: Polychaeta) from Pacific hot vents and cold seeps, with a key and synoptic table of characters for all genera. Zootaxa 2191: 1 - 40.", "Imajima M., Reuscher M. G. & Fiege D. 2012. Ampharetidae (Annelida: Polychaeta) from Japan. Part I: The genus Ampharete Malmgren, 1866, along with a discussion of several taxonomic characters of the family and the introduction of a new identification tool. Zootaxa 3490: 75 - 88."]}