Ophiotreta valenciennesi Lyman 1878
Creators
Description
Ophiotreta valenciennesi (Lyman, 1878)
Material. Sta. CP1646: 4 spms.
Remarks. Currently, two subspecies are recognized within O. valenciennesi, the nominate Indo-Pacific form and the Atlanto-Mediterranean O. valenciennesi rufescens Koehler, 1896. The differences between these are more rugose disk granules and longer adoral shields in the nominate subspecies (Paterson 1985). Mortensen (1933b) observed a large variability in the oral shields of Atlantic specimens, which he referred to rufescens, because he found them different from typical valenciennesi. This distinction cannot be maintained though, since Pacific specimens fall within the variability of rufescens (O'Hara & Stöhr 2006, and Lifou material). Given the high variability of several characters it is possible that these forms represent a species complex, but a subspecies distinction cannot be maintained.
The delimitation of Ophiotreta from Ophiacantha rests mainly on the usually spatulate shape of the distal oral papilla in Ophiotreta (Verrill 1899b). This character has however also been shown for Ophiacantha bidentata (Bruzelius, 1805), the type species of Ophiacantha (Martynov & Litvinova 2008). Another generic character, the flat and serrated arm spines, is shared by Ophiopristis, of which Ophiotreta originally was a subgenus (Verrill 1899), and by Ophiocopa, suggesting possible affinities between these genera, which were placed in three different subfamilies (Paterson 1985). This may be additional evidence supporting Martynov's (2010b) decision to drop the subfamilies.
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: 10.5281/zenodo.279037 (DOI)
- Journal article: http://publication.plazi.org/id/725D1D75F37D5E343F445C79405FFFFD (URL)
- Is source of
- https://sibils.text-analytics.ch/search/collections/plazi/8E64650DF36E5E203FD35B2C40A6FD79 (URL)
Biodiversity
- Family
- Ophiacanthidae
- Genus
- Ophiotreta
- Kingdom
- Animalia
- Order
- Ophiurida
- Phylum
- Echinodermata
- Scientific name authorship
- Lyman
- Species
- valenciennesi
- Taxon rank
- species
- Taxonomic concept label
- Ophiotreta valenciennesi Lyman, 1878 sec. Stöhr, 2011
References
- Lyman, T. (1878) Ophiuridae and Astrophytidae of the " Challenger " expedition. Part I. Bulletin of the Museum of Comparative Zoology at Harvard, 5, 65 - 168.
- Koehler, R. (1896) Note preliminaire sur les Ophiures des premieres campagnes de la " Princesse Alice. " Memoirs Societe Zoologique de France, 9, 241 - 253.
- 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 - 162.
- Mortensen, T. (1933 b) Ophiuroidea. The Danish Ingolf Expedition, 4, 1 - 121.
- O'Hara, T. D. & Stohr, S. (2006) Deep water Ophiuroidea (Echinodermata) of New Caledonia: Ophiacanthidae and Hemieuryalidae. Tropical Deep Sea Benthos (Memoires du Museum national d'Histoire naturelle 193), 24, 33 - 141.
- Verrill, A. E. (1899 b) Report on the Ophiuroidea collected by the Bahama expedition in 1893. Bulletin from the Laboratories of Natural History of the State University of Iowa, 5, 1 - 86.
- 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.