Cristatotanais Kudinova-Pasternak 1990
Description
Genus Cristatotanais Kudinova-Pasternak, 1990
Spinitanaopsis Larsen, 2005: 258 –259 (new synonymy). Crurispina Larsen, 2003: 781.
Kudinova-Pasternak (1990) erected the genus Cristatotanais for her species C. longicheles Kudinova-Pasternak, 1990, from 1038 m depth in the mid South Atlantic. Larsen (2003; 2005), in describing Spinitanaopsis insolituchelia (Larsen, 2003), from a cold-seep in the Gulf of Mexico at 570 m depth, made no reference to this paper, nor did he compare his genus with Cristatotanais. However, we cannot find any significant difference in characters between them sufficient to distinguish them at a generic level. Larsen’s species thus becomes Cristatotanais insolituchelia (Larsen, 2003) comb. nov.
Neither Kudinova-Pasternak (1990) nor Larsen (2003; 2005) assigned their genera to a family, but Larsen & Wilson (2002) included Cristatotanais in their new family Colletteidae, wherein the attachment of the cheliped was more consistent with the Colletteidae rather than their concept of the Anarthruridae. Conversely, Błażewicz-Paszkowycz and Poore (2008) resolved Cristatotanais (and, separately, Crurispina) into the Anarthruridae. The genus has typical anarthrurid mouthparts, with a reduced mandible (although taking the reduction to an extreme), reduced endites on the maxilliped, thin setae on the maxilla, and a naked labrum. The genus also has a simple (not spinelike) setae on pereopods 1 to 3 in contrast to the more robust spines on pereopods 4 to 6, and a reduced uropod exopod.
Finally, with a four-articled antennule, a reduced (absent) mandibular molar, narrow maxilliped endites and fused uropod exopod, Cristatotanais accords with the familial diagnosis for the Anarthruridae given by Larsen (2005; see also Bird 2004) rather than his diagnosis of the Colletteidae.
Notes
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: 10.5281/zenodo.204823 (DOI)
- Journal article: http://publication.plazi.org/id/FE026B77FFBBF71AB1573264FF90FF9D (URL)
- Is source of
- https://sibils.text-analytics.ch/search/collections/plazi/023B130FFFB7F717B1C03573FC25FD3A (URL)
Biodiversity
- Genus
- Cristatotanais
- Kingdom
- Animalia
- Order
- Tanaidacea
- Phylum
- Arthropoda
- Scientific name authorship
- Kudinova-Pasternak
- Taxon rank
- genus
- Taxonomic concept label
- Cristatotanais Kudinova-Pasternak, 1990 sec. Błażewicz-Paszkowycz, Bamber & Cunha, 2011
References
- Kudinova-Pasternak, R. K. (1990) Tanaidacea (Crustacea, Malacostraca) of the southeastern part of Atlantic Ocean and the region to the north off Mordvinov (Elephant) Island. Trudy Instituta Okeanologii, 126, 90 - 107.
- Larsen, K. (2005) Deep-sea Tanaidacea (Peracarida) from the Gulf of Mexico. Crustacean Monographs, 5, 1 - 381.
- Larsen, K. (2003) The tanaidacean fauna (Peracarida) from a deep-sea cold-seep in the Gulf of Mexico. Journal of Crustacean Biology, 23, 777 - 794.
- Larsen, K. & Wilson, G. D. F. (2002) Tanaidacean phylogeny, the first step: the superfamily Paratanaidoidea. Journal of Zoological Systematics and Evolutionary Research, 40, 205 - 222.
- Blazewicz-Paszkowycz, M. & Poore G. (2008) Observations on phylogenetic relationships in Paratanaoidea (Tanaidacea; Tanaidomorpha). Poster abstract. Advances in Crustacean Phylogeny, October 7 - 11, 2008: 68.
- Bird, G. J. (2004) Tanaidacea (Crustacea) of the Northeast Atlantic: non-filiform species of Anarthruridae Lang from the Atlantic Margin. Zootaxa, 471, 1 - 44.