Tharyx Webster & Benedict 1887

• Main Author: Blake, James A.
• Format: Text
• Language: unknown
• Published: Zenodo 2019
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Terebellida; Cirratulidae; Tharyx; Southern Ocean; Pacific; Kattegat; Benedict; Noto; Sickle; Antarc*; Antarctica; North Atlantic
• Online Access: https://dx.doi.org/10.5281/zenodo.5619241; https://zenodo.org/record/5619241

Genus Tharyx Webster & Benedict, 1887. Emended, Blake 1991 Type species: Tharyx acutus Webster & Benedict, 1887, by monotypy. Diagnosis. (after Blake 2018). Prostomium conical; peristomium elongate, with pair of grooved dorsal tentacles arising on posterior margin; first pair of branchiae typically arising immediately posterior to dorsal tentacles either on posterior margin of peristomium or on setiger 1; abdominal segments sometimes beadlike. Noto- and neurosetae arising close to one another, not widely separated. Setae include simple capillaries in anterior and middle setigers, acicular spines present in posterior setigers either in both noto- and neuropodia or only in neuropodia. Long, natatory-like setae present or absent. Spines typically short, curved, sometimes geniculate or sickle-shaped, narrowing to rounded irregularly notched or sub-bidentate tip; tips with pair of stunted or rounded knobs but not with two distinct teeth. Capillaries may accompany posterior spines or are absent, not alternating with spines when present. Pygidium with terminal anus and small ventral lobe or disk. Several species with black pigment markings on posterior lateral margin of peristomium. Remarks . Following the revision by Blake (1991), species of Tharyx were restricted to those having knobtipped or sub-bidentate acicular spines. Species having simple and serrated capillaries that were formerly included in Tharyx were moved to the genera Aphelochaeta and Monticellina (now Kirkegaardia ), respectively. The status of the genus Tharyx and additional species were recently described by Blake & Göransson (2015) and Blake (2018) bringing the total number of known Tharyx species to 15. One new species has been identified from the CCFZ collections and is here described. : Published as part of Blake, James A., 2019, New species of Cirratulidae (Annelida, Polychaeta) from abyssal depths of the Clarion-Clipperton Fracture Zone, North Equatorial Pacific Ocean, pp. 151-187 in Zootaxa 4629 (2) on page 180, DOI: 10.11646/zootaxa.4629.2.1, http://zenodo.org/record/3268977 : {"references": ["Webster, H. E. & Benedict, J. E. (1887) The Annelida Chaetopoda from Eastport, Maine. Report of the United States Commissioner of Fisheries 1885. Pp. 707 - 755. Available from: https: // books. google. com / books / about / The _ Annelida _ Chaetopoda _ From _ Eastport _ Ma. html? id = 4 C 0 tAAAAYAAJ (accessed 17 June 2019)", "Blake, J. A. (1991) Revision of some genera and species of Cirratulidae from the Western North Atlantic. Ophelia, Supplement No. 5, 17 - 30.", "Blake, J. A. (2018) Bitentaculate Cirratulidae (Annelida, Polychaeta) collected chiefly during cruises of the R / V Anton Bruun, USNS Eltanin, USCG Glacier, R / V Hero, RVIB Nathaniel B. Palmer, and R / V Polarstern from the Southern Ocean, Antarctica, and off Western South America. Zootaxa, 4537 (1), 1 - 140. https: // doi. org / 10.11646 / zootaxa. 4537.1.1", "Blake, J. A. & Goransson, P. (2015) Redescription of Tharyx killariensis (Southern) from Ireland and description of two new species of Tharyx from the Kattegat, Sweden (Polychaeta: Cirratulidae). Zootaxa, 4039 (4), 501 - 515. https: // doi. org / 10.11646 / zootaxa. 4039.4.1"]}