Ophiactis abyssicola
Creators
- 1. Museums Victoria, GPO Box 666 E, Melbourne, 3001, AUSTRALIA,
- 2. Natural History Museum of Luxembourg, 24 Rue Münster, 2160 Luxembourg
Description
Ophiactis abyssicola (M. Sars, 1861)
Fig. 13C–D
Amphiura abyssicola Sars, M., 1861: 18 pl. 2(7–12).
Ophiactis poa Lyman, 1879: 40, pl. 13(356–358).— Lyman 1882: 119, pl. 20(13–15) [according to Clark, H.L. 1918].
Ophiactis abyssicola.—Clark, H.L. 1923: 334–335.— Mortensen 1933a: 347.— Olbers et al. 2019: 247–249, fig. 250–251.
Material examined. MD 50 CP7, MNHN IE.2009.1580 (43). MD 50 CP19, MNHN IE.2009.1581 (2). MD 50 DC49, MNHN IE.2009.1582 (5). MD 50 CP50, MNHN IE.2009.1583 (7). MD 50 DC64, MNHN IE.2009.1584 (5). MD 50 CP113, MNHN IE.2009.1585 (1). MD 50 CP124, MNHN IE.2009.1586 (2). MD 50 CP145, MNHN IE.2009.1587 (1). MD 50 CP152, MNHN IE.2009.1588 (8). MD 50 CP178, MNHN IE.2009.1589 (8).
Distribution. Arctic (27–2298 m), NW Atlantic (3465– 3465 m), NE Atlantic (607–4813 m), W Atlantic (1054– 1067 m), E Atlantic (425–2075 m), S Africa (415–2743 m), S Australia (932–1151 m). SPA (750–2000 m).
Remarks. A phylogeographical study of mitochondrial COI DNA (O’Hara et al. 2014) showed that the species previously identified as Ophiactis abyssicola contained three separate species-level taxa. Ophiactis abyssicola occurred throughout the Atlantic from the Arctic to South Africa and around as far as the Atlantis seamount (32.71°S, 57.24°E) on the SW Indian Ocean Ridge. Ophiactis cuspidata Lyman, 1879 (here recognised as a full species) occurred around SE Australia, New Zealand and the Macquarie Ridge in depths of 200–1700 m. Ophiactis amator Koehler, 1922b occurred at depths of ~ 1700–4000 m off Southern Australia and New Zealand. Lower bathyal and abyssal (> 2000 m) specimens were not sequenced from the Atlantic or South Africa and so it is unclear whether a separate deep-water species occurs there (for which the name O. canotia Lyman, 1879 is available). Here the SPA population is assumed to be O. abyssicola due to its relative proximity to the Atlantis Bank compared to the nearest population of O. cuspidata off SE Australia.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Ophiactidae
- Genus
- Ophiactis
- Kingdom
- Animalia
- Order
- Amphilepidida
- Phylum
- Echinodermata
- Scientific name authorship
- M. Sars
- Species
- abyssicola
- Taxon rank
- species
- Taxonomic concept label
- Ophiactis abyssicola (Sars, 1861) sec. O'Hara & Thuy, 2022
References
- Sars, M. (1861) Oversigt of Norges Echinodermer. Christiania.
- Lyman, T. (1879) Ophiuridae and Astrophytidae of the exploring voyage of H. M. S. Challenger under Prof. Sir Wyville Thomson, F. R. S. Part 2. Bulletin of the Museum of Comparative Zoology, Harvard University, 6, 17 - 83, pls. 11 - 19.
- Lyman, T. (1882) Ophiuroidea. Report on the Scientific Results of the Voyage of the " Challenger " Zoology, 5, 1 - 385 pls. 1 - 48.
- Mortensen, T. (1933 a) Echinoderms of South Africa (Asteroidea: Ophiuroidea). Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening, 93, 215 - 400, pls. 8 - 19.
- Olbers, J. M., Griffiths, C. L., O'Hara, T. D. & Samyn, Y. (2019) Field guide to the brittle and basket stars (Echinodermata: Ophiuroidea) of South Africa. Brussels: Royal Belgium Institute of Natural Sciences.
- O'Hara, T. D., England, P. R., Gunasekera, R. & Naughton, K. M. (2014) Limited phylogeographic structure for five bathyal ophiuroids at continental scales. Deep Sea Research Part I: Oceanographic Research Papers, 84, 18 - 28. https: // doi. org / 10.1016 / j. dsr. 2013.09.009
- Koehler, R. (1922 b) Echinodermata: Ophiuroidea. Scientific Reports. Australasian Antarctic Expedition, Series C, 8 (2), 1 - 98, pls. 76 - 90.