Thouarella Gray 1870
Creators
Description
Genus Thouarella Gray, 1870
Thouarella Gray, 170: 45.— Wright & Studer, 1889: 59 –61.— Cairns, 2010: 415.—Taylor, et al., 2013: 20–21 (monograph of genus, including key to all species).— Cairns & Wirshing, 2018: 11. Thouarella (Thouarella) Cairns & Bayer, 2009: 33.
Type Species. Primnoa antarctica Valenciennes, 1846, by monotypy.
Diagnosis. Colonies bottlebrush in shape or uniplanar, the latter branched dichotomously or pinnately. Polyps isolated on branches (nominate subgenus) or arranged in pairs or whorls (subgenus Euthouarella). Polyps protected by 6–8 rows of body wall scales, the 2 adaxial rows having smaller and fewer scales, especially near base of polyp. Marginal scales capable of folding over operculum, arranged in two circles of four scales. Marginals have a prominently keeled inner surface.
Discussion. The genus was monographed by Taylor et al. (2013), in which all species were described, illustrated and keyed. They divided the genus into two groups: group 1 having isolated polyps, group 2 having polyps arranged in pairs or whorls. Cairns & Wirshing (2018) resurrected subgeneric names for these two group names. The genus currently consists of 32 species, and, although worldwide in distribution, is concentrated in the Subantarctic and Antarctic regions.
Distribution. Worldwide, 11–6400 m.
Notes
Files
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Primnoidae
- Genus
- Thouarella
- Kingdom
- Animalia
- Order
- Alcyonacea
- Phylum
- Cnidaria
- Scientific name authorship
- Gray
- Taxon rank
- genus
- Taxonomic concept label
- Thouarella Gray, 1870 sec. Cairns, 2018
References
- Gray, J. E. (1870) Catalogue of the Lithophytes or Stony Corals in the Collection of the British Museum. British Museum, London, 51 pp.
- Wright, E. P. & Studer, T. (1889) Report on the Alcyonaria collected by H. M. S. Challenger during the years 1873 - 76. Report on the Scientific Results of the Voyage of H. M. S. Challenger during the years 1873 - 76, Zoology, 31 (64), 1 - 314.
- Cairns, S. D. (2010) A review of the Octocorallia (Cnidaria: Anthozoa) from Hawai'i and adjacent seamounts, Part 3: The genera Thouarella, Plumarella, Callogorgia, Fanellia, and Parastenella. Pacific Science, 64 (3), 413 - 440. https: // doi. org / 10.2984 / 64.3.413
- Cairns, S. D. & Wirshing, H. H. (2018) A phylogenetic analysis of the Primnoidae (Anthozoa: Octocorallia: Calcaxonia) with analyses of character evolution and a key to the genera and subgenera. BMC Evolutionary Biology, 18 (66), 1 - 20. https: // doi. org / 10.1186 / s 12862 - 018 - 1182 - 5
- Cairns, S. D. & Bayer, F. M. (2009) A generic revision and phylogenetic analysis of the Primnoidae (Cnidaria: Octocorallia). Smithsonian Contributions to Zoology, 629, 1 - 79. https: // doi. org / 10.5479 / si. 00810282.629