Euonyx chelatus Norman, 1867

Lowry, J. K. & Kilgallen, N. M., 2014, A generic review of the lysianassoid family Uristidae and descriptions of new taxa from Australian waters (Crustacea, Amphipoda, Uristidae), Zootaxa 3867 (1), pp. 1-92 : 21

publication ID

https://doi.org/ 10.11646/zootaxa.3867.1.1

publication LSID

lsid:zoobank.org:pub:B7C6EC5F-5AA3-43B1-BD3D-D8111E0EC3A7

DOI

https://doi.org/10.5281/zenodo.6319084

persistent identifier

https://treatment.plazi.org/id/03AE8B60-AC12-FFCC-6CC1-FF2AFAD5C7BC

treatment provided by

Felipe (2021-06-11 20:53:46, last updated 2024-11-29 10:29:20)

scientific name

Euonyx chelatus Norman, 1867
status

 

Euonyx chelatus Norman, 1867 View in CoL

Euonyx chelatus Norman, 1867: 202 View in CoL .— Robertson, 1888: 94.— Stebbing, 1888: 673.— Walker, 1889: 77.— Sars, 1891: 117, pl. 40 fig. 1.— Walker, 1892: 244.— Walker, 1895a: 294.— Walker, 1895b: 422.— Norman, 1900: 214.— Scott, 1901: 259.— Stebbing, 1906: 19.— Stephensen, 1923: 41.— Stephensen, 1929: 52, figs 14, 16.—H.B. Moore, 1932: 156.— Stephensen, 1932: 353.— Pirlot, 1933: 120 (key).— Stephensen, 1935: 33.— Moore, 1937: 117.— Jones, 1940: 25, table 1.— Stephensen, 1942: 470 (table).— Jones, 1948: 404.— Enequist, 1949: 387 (table).— Gurjanova, 1951: 159, fig. 34. J.L. Barnard, 1958: 91 (list).— Bruce, Colman & Jones, 1963: 150.— Thurston & Allen, 1969: 358.—Vader, 1978: 127.— Lincoln, 1979: 54, fig. 18.—P.G. Moore, 1984: 32.— Comely & Ansell, 1988: 114, 123.— Costello et al., 1989: 33.— Lowry & Stoddart, 1989: 519.— Barnard & Ingram, 1990: 2 (list), 3 (key).— Barnard & Karaman, 1991: 485.— Palerud & Vader, 1991: 35.— Sainte-Marie, 1991: 217, appendix 1.— Holmes et al., 1997: 186 (list).— Johnson et al., 2001: 198, table 3.— O’Reilly et al., 2001: 36.— Tzvetkova & Golikov, 2001: 88 (table).

? Opis leptochela Bate & Westwood, 1868: 501 fig.

Types. Syntypes: NHM Reg. no. 1911:11:8:13684-13686 (3 specimens, alcohol), 1911:11:8:M843-M845 (3 slides). Type locality. Sleat Sound , Hebrides, North Atlantic Ocean (~ 57°10’N 5°50’W) on the sea urchin Echinus esculentus Linnaeus, 1758 View in CoL GoogleMaps .

Habitat. An apparent obligate ectoparasite of the sea urchin Echinus esculentus Linnaeus, 1758 (Vader 1978) .

Depth range. 31–900 m (H.B. Moore 1937; Stephensen 1923).

Remarks. There are currently only three recognized species in Euonyx —the type species and the two new species described here. Euonyx chelatus and E. urania show some similarity. Euonyx xarifa is the least similar. It has an apically rounded lateral cephalic lobe (apically acute or subacute in E. chelatus and E. urania ); no anterodistal lobe on article 1 of the antenna 1 peduncle (present in E. chelatus and E. urania ); mandibular incisor vestigial (reduced in E. chelatus and E. urania ); mandibular molar a large flap (absent in E. chelatus and E. urania ); lacinia mobilis absent (vestigial in E. chelatus and E. urania ); epimeron 3 with a rounded posteroventral corner (forming a spine spine in E. chelatus and E. urania ); and the dorsal margin of urosomite 1 forming a rounded boss extending over urosomite 2 (an elongate truncated boss in E. chelatus and E. urania ).

Distribution. Northeast Atlantic Ocean. Coasts of Scotland (Norman 1967; Robertson 1888; Scott, 1901); Isle of Man ( Bate & Westwood 1868 (as Opis leptochela ); H.B. Moore 1937); Norway ( Sars 1891); Wales ( Walker 1892); England ( Walker 1895 a, 1895b); southwest of the Faeroe Islands ( Stephensen 1923); west coast of Ireland ( Costello et al. 1989); Bay of Biscay (Dauvin & Sorbe 1995). Arctic Ocean. Barents Sea ( Sars 1891; Tzvetkova & Golokov 2001).? Northwest Atlantic Ocean. Westof Greenland (determination uncertain) ( Stephensen 1923).

Barnard, J. L. (1958) Index to the families, genera, and species of the gammaridean Amphipoda (Crustacea). Allan Hancock Foundation Publications, Occasional Paper, 19, 1 - 145.

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Bruce, J. R., Colman, J. S. & Jones, N. S. (1963) Marine Fauna of the Isle of Man and its surrounding seas. Liverpool University Press, Liverpool, pp. 1 - 307. [not seen]

Comely, C. A. & Ansell, A. D. (1988) Invertebrate associates of the sea urchin, Echinus esculentus L., from the Scottish west coast. Ophelia, 28, 111 - 137. http: // dx. doi. org / 10.1080 / 00785326.1988.10430807

Costello, M. J., Holmes, J. M. C., McGrath, D. & Myers, A. A. (1989) A review and catalogue of the Amphipoda (Crustacea) in Ireland. Irish Fisheries Investigations, Series B (Marine), 33, 1 - 70.

Enequist, P. (1949) Studies on the soft-bottom amphipods of the Skagerak. Zoologiska Bidrag fran Uppsala, 28, 297 - 492.

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Holmes, J. M. C., Costello, M. J. & Connor, D. W. (1997) Crustacea. In: Howson, C. M. & Picton, B. E. (Eds.), The species directory of the marine fauna and flora of the British Isles and surrounding seas. Ulster Museum Publication, Ulster Museum, Belfast, pp. 142 - 209.

Johnson, W. S., Stevens, M. & Watling, L. (2001) Reproduction and development of marine peracaridans. Advances in Marine Biology, 39, 105 - 260. http: // dx. doi. org / 10.1016 / s 0065 - 2881 (01) 39009 - 0

Jones, N. S. (1940) The distribution of the fauna and bottom deposits off Port Erin. Proceedings of the Liverpool Biological Society, 53, 1 - 34.

Jones, N. S. (1948) The ecology of the Amphipoda of the south of the Isle of Man. Journal of the Marine Biological Association of the United Kingdom, 27 (2), 400 - 439. http: // dx. doi. org / 10.1017 / s 0025315400025455

Lincoln, R. J. (1979) British Marine Amphipoda: Gammaridea. British Museum (Natural History), London, v + 658 pp.

Linnaeus, C. (1758) Systema naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. 10 th Edition. Laurentius Salvius, Stockholm, 824 pp. [in Latin] http: // dx. doi. org / 10.5962 / bhl. title. 542

Lowry, J. K. & Stoddart, H. E. (1989) Stephonyx, a new, widespread genus of lysianassoid Amphipoda. Zoologica Scripta, 18, 519 - 525. http: // dx. doi. org / 10.1111 / j. 1463 - 6409.1989. tb 00145. x

Moore, H. B. (1932) Faunistic records for the Manx region. Annual Report of the Marine Biological Station at Port Erin, Isle of Man, 45, 152 - 159.

Moore, H. B. (1937) Marine Fauna of the Isle of Man. Transactions of the Liverpool Biological Society, 50, 1 - 293.

Moore, P. G. (1984) The fauna of the Clyde Sea area. Crustacea: Amphipoda. University Marine Biological Station Millport, Occasional Publication, 2, 1 - 84.

Norman, A. M. (1867) Report of the committee appointed for the purpose of exploring the coasts of the Hebrides by means of the dredge. Part II. On the Crustacea, Echinodermata, Polyzoa, Actinozoa, and Hydrozoa. Report of the British Association for the Advancement of Science, 36, 193 - 206.

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Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Amphipoda

Family

Uristidae

Genus

Euonyx