Ophiura (Ophiuroglypha) concreta

• Main Authors: Madeira, Patrícia, Kroh, Andreas, Cordeiro, Ricardo, De, António M., Martins, Frias, Ávila, Sérgio P.
• Format: Text
• Language: unknown
• Published: Zenodo 2019
• Subjects: Biodiversity; Taxonomy; Animalia; Echinodermata; Ophiuroidea; Ophiurida; Ophiuridae; Ophiura; Ophiura concreta; Andreas; Ricardo; Paterson; Grieg; North Atlantic
• Online Access: https://dx.doi.org/10.5281/zenodo.5583182; https://zenodo.org/record/5583182

Ophiura ( Ophiuroglypha ) concreta (Koehler, 1901) Reports for the Azores: Ophioglypha concreta Koehler, 1901 — $ Koehler 1906b: 261; Ophiura concreta (Koehler, 1901) — Mortensen 1927a: 233; Grieg 1932: 32; $ Cherbonnier & Sibuet 1972: 414, 415. Type locality: Cape Verde (14°47’N, 24°31’45”W). See: Koehler (1901: 228–230, figs. 6–8, 1909: 148–149, pl. 25, figs. 3–5, as Ophioglypha concreta ); Paterson (1985: 125, fig. 47, as Ophiura irrorata concreta ). Occurrence: East Atlantic, from the Bay of Biscay south to Cape Verde, and east to the Azores (Koehler 1906b, 1909, Cherbonnier & Sibuet 1972); reported as well off South African deep waters (Paterson 1985). Depth: 1,885 – 3,120 m (Grieg 1932, Cherbonnier & Sibuet 1972) AZO: 2,845 –2,995 m (Koehler 1906b, Cherbonnier & Sibuet 1972). Habitat: soft substrates (muddy sand; Koehler 1909, Grieg 1932). Remarks: Paterson (1985) found O . concreta to be identical with O. irrorata in almost every aspect, ascribing no specific value to differences in the arrangement or number of arm spines. In view of this, Paterson proposed to demote this species to a subspecies of O. irrorata , restricted to the East Atlantic. Nevertheless, he also noted that the distinct characters of O. concreta were constant over a wide range of sizes and geographical areas. Martynov & Litvinova (2008) disputed the subspecific division of O. irrorata . According to them, several subspecies should not live syntopically as in the case of O. i. irrorata and O. i. concreta , both known from the Bay of Biscay. Another example of co-existence can be found in Grieg (1932), who identified both forms in the material collected by Michael Sars at a station located north of the Azores (sta 88: 45°26’N, 25°45’W, 3,120 m). However, Martynov & Litvinova (2008) were unsure if they represented two separate species or rather a single polymorphic species. In view of this, we have opted for a more conservative approach and maintain the historical species O. concreta separate from O. irrorata . Presently, O. concreta is known with certainty in the Azores only by historical records of Koehler (1906b; Talisman cruise) and Cherbonnier & Sibuet (1972; Noratlante cruise). See below remarks under Ophiura irrorata . : Published as part of Madeira, Patrícia, Kroh, Andreas, Cordeiro, Ricardo, De, António M., Martins, Frias & Ávila, Sérgio P., 2019, The Echinoderm Fauna of the Azores (NE Atlantic Ocean), pp. 1-231 in Zootaxa 4639 (1) on page 57, DOI: 10.11646/zootaxa.4639.1, http://zenodo.org/record/3342161 : {"references": ["Koehler, R. (1901) Note preliminaire sur quelques Ophiures nouvelles provenant des campagnes de la Princesse Alice. Bulletin de la Societe Zoologique de France, 26, 222 - 231.", "Koehler, R. (1906 b) Ophiures. Expeditions Scientifiques du Travailleur et du Talisman, 8, 245 - 311.", "Mortensen, T. (1927 a) Handbook of the echinoderms of the British Isles. Oxford University Press, viii + 471 pp. https: // doi. org / 10.5962 / bhl. title. 6841", "Grieg, J. A. (1932) Echinodermata. Report of the scientific results of the Michael Sars North Atlantic deep sea expedition 1910, 3 (2), 1 - 47.", "Cherbonnier, G. & Sibuet, M. (1972) Resultats scientifiques de la campagne Noratlante: Asterides et Ophiurides. Bulletin du Museum National D'histoire Naturelle, 102 (76), 1333 - 1394.", "Paterson, G. L. J. (1985) The deep-sea Ophiuroidea of the North Atlantic Ocean. Bulletin of the British Museum (Natural History), Zoology Series, 49 (1), 1 - 162.", "Koehler, R. (1909) Echinodermes provenant des campagnes du yacht Princesse-Alice (Asteries, Ophiures, Echinides et Crinoides). Resultats des campagnes scientifiques accomplies sur son yacht par Albert Ier Prince Souverain de Monaco, 34, 1 - 317.", "Martynov, A. V. & Litvinova, N. M. (2008) Deep-water Ophiuroidea of the northern Atlantic with descriptions of three new species and taxonomic remarks on certain genera and species. Marine Biology Research, 4, 76 - 11. https: // doi. org / 10.1080 / 17451000701840066"]}