Ophiotreta spectabilis O'Hara & Thuy 2022, comb. nov.
Creators
- 1. Museums Victoria, GPO Box 666 E, Melbourne, 3001, AUSTRALIA,
- 2. Natural History Museum of Luxembourg, 24 Rue Münster, 2160 Luxembourg
Description
Ophiotreta spectabilis (G.O. Sars, 1872) comb. nov.
Fig. 6F
Ophiacantha spectabilis Sars, 1872: 10.— Lyman 1882: 198.— Mortensen 1933c: 33–34.— Paterson 1985: 41, fig. 18.— Martynov & Litvinova 2008: 96, fig. 11c.
Ophiacantha (Ophiectodia) spectabilis.— Verrill 1899a: 42.
Material examined. MD 50 CP7, MNHN IE.2009.1564 (7). MD 50 CP145, MNHN IE.2009.1565 (1).
Distribution. Arctic (190–1505 m), NW Atlantic (240–366 m), NE Atlantic (530–1830 m), S Australia (780– 1700 m), New Zealand (150–1460 m). SPA (825–1680 m).
Remarks. This species is easily recognised by the large oval tentacle scales (two on basal segments), the multiple (4–8) oral papillae, the pentagonal oral shield that is bordered distally by a fringe of small papillae, and the rod-shaped disc spines that can be terminated by small thorns (Fig. 6F). This species has been identified as an associate (O’Hara et al. 2008) of the colonial deep-water coral Solenosmilia variabilis. Both MD50 samples that contained O. spectabilis (to 8.5 mm dd) also contained S. variabilis (see MNHN online collections database, https:// science.mnhn.fr/institution/mnhn/item/search).
Phylogenetic evidence shows conclusively that this species belongs in the family Ophiotomidae rather than the Ophiacanthidae (O’Hara et al. 2017), and consequently it is transferred here to the genus Ophiotreta pending a revision of this family. Many of the existing ophiotomid genera appear to be non-monophyletic. In the phylogeny, it is sister to a clade that includes the tropical Indo-Pacific species Ophiopristis procera (Koehler, 1904) and Ophiopristis luctosa (Koehler, 1904) which also have a fringe of papillae on the dorsal margin of the oral shields (O’Hara & Stöhr 2006).
Notes
Files
Files
(2.3 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:4d36d7e5a13a143dc27a75a91f2e309f
|
2.3 kB | Download |
System files
(18.7 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:11b2006da6b8fb05795ad2747c31df1b
|
18.7 kB | Download |
Linked records
Additional details
Identifiers
Biodiversity
- Family
- Ophiotomidae
- Genus
- Ophiotreta
- Kingdom
- Animalia
- Order
- Ophiacanthida
- Phylum
- Echinodermata
- Scientific name authorship
- O'Hara & Thuy
- Species
- spectabilis
- Taxonomic status
- comb. nov.
- Taxon rank
- species
- Taxonomic concept label
- Ophiotreta spectabilis (Sars, 1872) sec. O'Hara & Thuy, 2022
References
- Sars, G. O. (1872) Nye Echinodermer fra den norske kyst. Videnskabelige Selskabets Forhandlinger, 1871, 1 - 31.
- 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 c) Ophiuroidea. The Danish Ingolf Expedition, 4, 1 - 120, 3 pls.
- Paterson, G. L. J. (1985) The deep-sea Ophiuroidea of the North Atlantic Ocean. Bulletin of the British Museum (Natural History) Zoology, 49, 1 - 162.
- 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 - 111. https: // doi. org / 10.1080 / 17451000701840066
- Verrill, A. E. (1899 a) North American Ophiuroidea. 1. Revision of certain families and genera of West Indian ophiurans. Transactions of the Connecticut Academy of Arts and Sciences, 10, 301 - 396. https: // doi. org / 10.5962 / bhl. part. 7032
- O'Hara, T. D., Rowden, A. A. & Williams, A. (2008) Cold-water coral habitats on seamounts: do they have a specialist fauna? Diversity and Distributions, 14, 925 - 934. https: // doi. org / 10.1111 / j. 1472 - 4642.2008.00495. x
- O'Hara, T. D., Hugall, A. F., Thuy, B., Stohr, S. & Martynov, A. V. (2017) Restructuring higher taxonomy using broad-scale phylogenomics: the living Ophiuroidea. Molecular Phylogenetics and Evolution, 107, 415 - 430. https: // doi. org / 10.1016 / j. ympev. 2016.12.006
- Koehler, R. (1904) Ophiures de mer profonde. Siboga-Expeditie, 45, 1 - 176 pls. 1 - 36.
- O'Hara, T. D. & Stohr, S. (2006) Deep water Ophiuroidea (Echinodermata) of New Caledonia: Ophiacanthidae and Hemieuryalidae. Tropical Deep-Sea Benthos, 24, 33 - 141.