Ophiactis abyssicola (M. Sars 1861)
- Dataset
- Biogeography and taxonomy of Ophiuroidea (Echinodermata) from the Îles Saint- Paul and Amsterdam in the southern Indian Ocean
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Echinodermata
- class
- Ophiuroidea
- order
- Amphilepidida
- family
- Ophiactidae
- genus
- Ophiactis
- species
- Ophiactis abyssicola
description
Fig. 13 C – D
discussion
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, 1922 b 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.
distribution
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).
materials_examined
Material examined. MD 50 CP 7, MNHN IE. 2009.1580 (43). MD 50 CP 19, MNHN IE. 2009.1581 (2). MD 50 DC 49, MNHN IE. 2009.1582 (5). MD 50 CP 50, MNHN IE. 2009.1583 (7). MD 50 DC 64, MNHN IE. 2009.1584 (5). MD 50 CP 113, MNHN IE. 2009.1585 (1). MD 50 CP 124, MNHN IE. 2009.1586 (2). MD 50 CP 145, MNHN IE. 2009.1587 (1). MD 50 CP 152, MNHN IE. 2009.1588 (8). MD 50 CP 178, MNHN IE. 2009.1589 (8).