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Research Article
Wecomedon Jarrett & Bousfield, 1982, a replacement name for the amphipod genus Psammonyx Bousfield, 1973 (Crustacea, Amphipoda, Tryphosidae), preoccupied by Psammonyx Döderlein, 1892 (Foraminifera, Astrorhizida, Ammovolummidae)
expand article infoTammy Horton‡
‡ National Oceanography Centre, Southampton, United Kingdom

Corresponding author: Tammy Horton ( tammy.horton@noc.ac.uk )

Academic editor: Charles Oliver Coleman
© 2018 Tammy Horton.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation: Horton T (2018) Wecomedon Jarrett & Bousfield, 1982, a replacement name for the amphipod genus Psammonyx Bousfield, 1973 (Crustacea, Amphipoda, Tryphosidae), preoccupied by Psammonyx Döderlein, 1892 (Foraminifera, Astrorhizida, Ammovolummidae). ZooKeys 750: 41-44. https://doi.org/10.3897/zookeys.750.24529
ZooBank: urn:lsid:zoobank.org:pub:E9B6A23A-C8E2-4C38-A597-B2D107F5190C
Open Access

Abstract

Wecomedon Jarrett & Bousfield, 1982 is reintroduced as a replacement name for Psammonyx Bousfield, 1973 (Crustacea: Amphipoda: Tryphosidae) which is a junior homonym of Psammonyx Döderlein, 1892 (Foraminifera: Astrorhizida: Ammovolummidae).

Keywords

Psammonyx , Wecomedon , Amphipoda , Foraminifera , homonym

Introduction

Psammonyx Bousfield, 1973 was established as a new genus of lysianassid amphipod (now in the family Tryphosidae) with its type species, Anonyx nobilis Stimpson, 1853. It was recently discovered to be a junior homonym of Psammonyx Döderlein, 1892, a genus of ammovolummid foraminiferan (Foraminifera: Astrorhizida: Ammovolummidae). Psammonyx Döderlein, 1892 is a valid name in current use and contains the type species Psammonyx vulcanicus Döderlein, 1892 along with two further fossil species; Psammonyx campbelli Browne & Schott, 1963 and Psammonyx maxwelli Ireland, 1939 (Hayward et al. 2018).

Systematics

Wecomedon Jarrett & Bousfield, 1982, re-established

Psammonyx Bousfield, 1973: 144 (Crustacea: Amphipoda: Tryphosidae); type species: Anonyx nobilis Stimpson, 1853, original designation by Bousfield 1973; preoccupied.

Wecomedon Jarrett & Bousfield, 1982: 113 (Crustacea: Amphipoda: Tryphosidae); type species: Hippomedon wecomus J.L. Barnard, 1971, original designation by Jarrett and Bousfield 1982.

non Psammonyx Döderlein, 1892: 146 (Foraminifera: Astrorhizida: Ammovolummidae); type species: Psammonyx vulcanicus Döderlein, 1892, original designation by Döderlein 1892.

Psammonyx – Budnikova, 2005: 179 (Wecomedon Jarrett & Bousfield, 1982 reduced to the rank of junior synonym of Psammonyx Bousfield, 1973).

Type species

Hippomedon wecomus J.L. Barnard, 1971, original designation by Jarrett and Bousfield (1982).

Remarks

Psammonyx Bousfield, 1973 currently contains eleven species (Horton et al. 2018). The genus was established by Bousfield in 1973, for the single species Psammonyx nobilis (Stimpson, 1853), designated as the type of the genus (as Anonyx nobilis Stimpson, 1853). A second species (P. terranovae Steele, 1979) was added by Steele in 1979, and in 1982, Jarrett and Bousfield described a third species (Psammonyx longimerus Jarrett & Bousfield, 1982) and transferred the fourth species Psammonyx kurilicus (Gurjanova, 1962) from the genus Hippomedon.

In 2005, Budnikova added two further species (Psammonyx kudrjaschovi Budnikova, 2005 and Psammonyx tzvetkovae Budnikova, 2005) and placed the genus Wecomedon Jarrett & Bousfield, 1982 in synonymy with Psammonyx, transferring the five species it contained to Psammonyx (P. boreopacificus (Gurjanova, 1962); P. minusculus (Gurjanova, 1938) P. similis (Jarrett & Bousfield, 1982); P. wecomus (J.L. Barnard, 1971); and P. wirketis (Gurjanova, 1962)).

According to ICZN article 60.2 the oldest available and potentially valid synonym of the rejected junior homonym becomes the valid name of the taxon (see ICZN Article 23.3.5), and takes its own authorship and date. Therefore, the replacement name for Psammonyx Bousfield, 1973 is Wecomedon Jarrett & Bousfield, 1982, with Hippomedon wecomus J.L. Barnard, 1971 as the type species of the genus.

Wecomedon is now comprised of the following eleven species:

Wecomedon boreopacificus (Gurjanova, 1962), comb. n. Original name Hippomedon boreopacificus;

Wecomedon kudrjaschovi (Budnikova, 2005), comb. n. Original name Psammonyx kudrjaschovi;

Wecomedon kurilicus (Gurjanova, 1962), comb. n. Original name Hippomedon kurilicus;

Wecomedon longimerus (Jarrett & Bousfield, 1982), comb. n. Original name Psammonyx longimerus;

Wecomedon minusculus (Gurjanova, 1938), comb. n. Original name Paratryphosites minusculus;

Wecomedon nobilis (Stimpson, 1853), comb. n. Original name Anonyx nobilis;

Wecomedon similis Jarrett & Bousfield, 1982, comb. n. Original name Wecomedon similis;

Wecomedon terranovae (Steele, 1979), comb. n. Original name Psammonyx terranovae;

Wecomedon tzvetkovae (Budnikova, 2005), comb. n. Original name Psammonyx tzvetkovae;

Wecomedon wecomus (J.L. Barnard, 1971), comb. n. Original name Hippomedon wecomus;

Wecomedon wirketis (Gurjanova, 1962), comb. n. Original name Hippomedon wirketis.

Acknowledgements

I would like to thank Cedric D’Udekem D’Acoz for bringing the homonym to my attention and for improvements to the manuscript during review, and Andrew Gooday for assistance with the validity of the foraminiferan name. This work was funded by the UK Natural Environment Research Council (NERC), and contributes to the Porcupine Abyssal Plain − Sustained Observatory (NERC National Capability programme).

References

  • Barnard JL (1971) Gammaridean Amphipoda from a deep-sea transect off Oregon. Smithsonian Contributions to Zoology 61: 1–86. [48 figs]
  • Bousfield EL (1973) Shallow-water gammaridean Amphipoda of New England. Cornell University Press, Ithaca, 312 pp.
  • Browne RG, Schott VJ (1963) Arenaceous foraminifera from the Osgood Formation at Osgood, Indiana. Bulletins of American Paleontology 46(209): 187–243.
  • Budnikova LL (2005) Two New Species of Psammonyx and the Identity of the Genus Wecomedon (Amphipoda, Gammaridea). Publications of the Seto Marine Biological Laboratory 40(3–4): 179–197. https://doi.org/10.5134/176321
  • Döderlein L (1892) No official title (Demonstration: Petrostroma schulzei, Psammonyx vulcanus). Verhandlungen der Deutschen Zoologischen Gesellschaft 1892: 143–146.
  • Gurjanova E (1938) Amphipoda, Gammaroidea zalikov Siaukhu i Sudzukhe (Yaponskoe More). Amphipoda, Gammaroidea of Siaukhu Bay and Sudzukhe Bay (Japan Sea). Reports of the Japan Sea Hydrobiological Expedition of the Zoological Institute of the Academy of Sciences USSR in 1934 1: 241–404. [59 figs]
  • Gurjanova EF (1962) Bokoplavy severnoi chasti Tikhogo Okeana (Amphipoda, Gammaridea) chast’ 1. Opredeliteli po faune SSSR, Zoologicheskiy Institute Akademii Nauk SSSR 74: 1–440.
  • Horton T, Lowry J, De Broyer C, Bellan-Santini D, Coleman CO, Corbari L, Daneliya M, Dauvin J-C, Fišer C, Gasca R, Grabowski M, Guerra-García JM, Hendrycks E, Hughes L, Jaume D, Jazdzewski K, Kim Y-H, King R, Krapp-Schickel T, LeCroy S, Lörz A-N, Mamos T, Senna AR, Serejo C, Sket B, Souza-Filho JF, Tandberg AH, Thomas J, Thurston M, Vader W, Väinölä R, Vonk R, White K, Zeidler W (2018) World Amphipoda Database. Psammonyx Bousfield, 1973. http://www.marinespecies.org/amphipoda/aphia.php?p=taxdetails&id=158139 [accessed on 2018–02–18]
  • Ireland HA (1939) Devonian and Silurian Foraminifera from Oklahoma. Journal of Paleontology 13(2): 190–202.
  • Jarrett NE, Bousfield EL (1982) Studies on the amphipod family Lysianassidae in the Northeastern Pacific region. Hippomedon: and related genera: Systematics and distributional ecology. National Museums of Canada, Publications in Biological Oceanography 10: 103–128.
  • Stimpson W (1853) Synopsis of the marine Invertebrata of Grand Manan: or the region about the mouth of the Bay of Fundy, New Brunswick. Smithsonian Contributions to Knowledge 6: 1–66. [pls 1–3]
  • Steele DH (1979) A new species of Psammonyx (Crustacea, Amphipoda, Lysianassidae) from the Northwestern Atlantic. Canadian Journal of Zoology 57(6): 1215–1221. https://doi.org/10.1139/z79-155
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