Microthalestris variabilis, sp. nov.
Microthalestris variabilis sp. nov. urn:lsid:zoobank.org:act: 5CD772EB-A539-4FF2-B83E-531ED6767E80 Parastenhelia? costata Pallares, 1982 sensu Mielke (1990) Based solely on P1 morphology P. gracilis appears morphologically close (and potentially conspecific) with P. costata, another Argentine specie...
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ftzenodo:oai:zenodo.org:5579339 2023-05-15T17:03:46+02:00 Microthalestris variabilis, sp. nov. Huys, Rony Mu, Fanghong 2021-10-12 https://zenodo.org/record/5579339 https://doi.org/10.5281/zenodo.5579339 unknown info:eu-repo/semantics/altIdentifier/url/http://zoobank.org/5CD772EB-A539-4FF2-B83E-531ED6767E80 info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/951887EAFFEEFFB0FF51D1AAE1D1FD8C info:eu-repo/semantics/altIdentifier/lsid/urn:lsid:zoobank.org:act:5CD772EB-A539-4FF2-B83E-531ED6767E80 doi:10.11646/zootaxa.5051.1.13 http://zenodo.org/record/5572417 http://publication.plazi.org/id/6921FF92FFC3FF9EFFC6D318E440FFDB doi:10.5281/zenodo.5572419 doi:10.5281/zenodo.5572423 doi:10.5281/zenodo.5572425 doi:10.5281/zenodo.5572427 doi:10.5281/zenodo.5572431 http://zoobank.org/F94203E7-FCD1-4975-BAD3-0DF534806712 doi:10.5281/zenodo.5579338 https://zenodo.org/communities/biosyslit https://zenodo.org/record/5579339 https://doi.org/10.5281/zenodo.5579339 oai:zenodo.org:5579339 info:eu-repo/semantics/openAccess Johnwellsia, a new intertidal genus of Parastenheliidae (Copepoda, Harpacticoida) from the Taiwan Strait, China, including a review of the family and key to genera, pp. 236-318 in Zootaxa 5051(1) 281-282 Biodiversity Taxonomy Animalia Arthropoda Hexanauplia Harpacticoida Miraciidae Microthalestris Microthalestris variabilis info:eu-repo/semantics/other publication-taxonomictreatment 2021 ftzenodo https://doi.org/10.5281/zenodo.557933910.11646/zootaxa.5051.1.1310.5281/zenodo.557241910.5281/zenodo.557242310.5281/zenodo.557242510.5281/zenodo.557242710.5281/zenodo.557243110.5281/zenodo.5579338 2023-03-10T13:56:59Z Microthalestris variabilis sp. nov. urn:lsid:zoobank.org:act: 5CD772EB-A539-4FF2-B83E-531ED6767E80 Parastenhelia? costata Pallares, 1982 sensu Mielke (1990) Based solely on P1 morphology P. gracilis appears morphologically close (and potentially conspecific) with P. costata, another Argentine species originally described from Bahía Thetis on the east coast of Tierra de Fuego (Pallares 1982: 9–11; Plates I–II) and which occurs sympatrically with M. minuta comb. nov. (Pallares 1982: 12–14; Plate III). Bick & Arlt (2013) recorded both species in considerable numbers from a soft-bottom area in Maxwell Bay (King George Island, South Shetlands) but it is not clear how they distinguished them. Mielke (1990) reported a second population on Isla Grande Tierra del Fuego from Bahía Lapataia near Ushuaia which he tentatively attributed to P. costata. An exceptionally high degree of variability in the armature of P2–P4 was observed in a relatively small sample (13 ♀♀, 6 ♂♂), causing Mielke (1990) to suggest that both Tierra del Fuego species, P. costata and P. minuta represented populations of the same species. Accepting this view would unnecessarily blur the species boundaries in Microthaletris even further and, considering the recent progress that has been made (e.g. Gee 2006), be a retrograde step in the revision of the genus. Mielke’s (1990) specimens differ from the P. costata type population in the smaller body size [580–780 μm (♀), 420–560 μm (♂) vs 789–960 μm (♀), 600–706 μm (♂)], the shape of caudal ramus seta IV (with bulbous swelling near the base), the presence of only one or two inner setae (instead of three) on P3–P4 exp-3, the length of the inner seta on the male P3 enp-2, and the weakly developed endopodal lobe of the male P5, reaching barely beyond the proximal exopod segment (vs reaching well beyond the middle exopod segment). The female P5 differs in the shape of the exopod which is rounder in the type population and shows a wider spacing between the proximal and middle outer setae, and in the length ... Other/Unknown Material King George Island Maxwell Bay Tierra del Fuego Zenodo King George Island Argentine Seta ENVELOPE(9.895,9.895,63.645,63.645) Ushuaia ENVELOPE(-40.000,-40.000,-82.167,-82.167) Maxwell Bay ENVELOPE(-58.859,-58.859,-62.223,-62.223) isla Grande ENVELOPE(140.025,140.025,-66.664,-66.664) |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Arthropoda Hexanauplia Harpacticoida Miraciidae Microthalestris Microthalestris variabilis |
spellingShingle |
Biodiversity Taxonomy Animalia Arthropoda Hexanauplia Harpacticoida Miraciidae Microthalestris Microthalestris variabilis Huys, Rony Mu, Fanghong Microthalestris variabilis, sp. nov. |
topic_facet |
Biodiversity Taxonomy Animalia Arthropoda Hexanauplia Harpacticoida Miraciidae Microthalestris Microthalestris variabilis |
description |
Microthalestris variabilis sp. nov. urn:lsid:zoobank.org:act: 5CD772EB-A539-4FF2-B83E-531ED6767E80 Parastenhelia? costata Pallares, 1982 sensu Mielke (1990) Based solely on P1 morphology P. gracilis appears morphologically close (and potentially conspecific) with P. costata, another Argentine species originally described from Bahía Thetis on the east coast of Tierra de Fuego (Pallares 1982: 9–11; Plates I–II) and which occurs sympatrically with M. minuta comb. nov. (Pallares 1982: 12–14; Plate III). Bick & Arlt (2013) recorded both species in considerable numbers from a soft-bottom area in Maxwell Bay (King George Island, South Shetlands) but it is not clear how they distinguished them. Mielke (1990) reported a second population on Isla Grande Tierra del Fuego from Bahía Lapataia near Ushuaia which he tentatively attributed to P. costata. An exceptionally high degree of variability in the armature of P2–P4 was observed in a relatively small sample (13 ♀♀, 6 ♂♂), causing Mielke (1990) to suggest that both Tierra del Fuego species, P. costata and P. minuta represented populations of the same species. Accepting this view would unnecessarily blur the species boundaries in Microthaletris even further and, considering the recent progress that has been made (e.g. Gee 2006), be a retrograde step in the revision of the genus. Mielke’s (1990) specimens differ from the P. costata type population in the smaller body size [580–780 μm (♀), 420–560 μm (♂) vs 789–960 μm (♀), 600–706 μm (♂)], the shape of caudal ramus seta IV (with bulbous swelling near the base), the presence of only one or two inner setae (instead of three) on P3–P4 exp-3, the length of the inner seta on the male P3 enp-2, and the weakly developed endopodal lobe of the male P5, reaching barely beyond the proximal exopod segment (vs reaching well beyond the middle exopod segment). The female P5 differs in the shape of the exopod which is rounder in the type population and shows a wider spacing between the proximal and middle outer setae, and in the length ... |
format |
Other/Unknown Material |
author |
Huys, Rony Mu, Fanghong |
author_facet |
Huys, Rony Mu, Fanghong |
author_sort |
Huys, Rony |
title |
Microthalestris variabilis, sp. nov. |
title_short |
Microthalestris variabilis, sp. nov. |
title_full |
Microthalestris variabilis, sp. nov. |
title_fullStr |
Microthalestris variabilis, sp. nov. |
title_full_unstemmed |
Microthalestris variabilis, sp. nov. |
title_sort |
microthalestris variabilis, sp. nov. |
publishDate |
2021 |
url |
https://zenodo.org/record/5579339 https://doi.org/10.5281/zenodo.5579339 |
long_lat |
ENVELOPE(9.895,9.895,63.645,63.645) ENVELOPE(-40.000,-40.000,-82.167,-82.167) ENVELOPE(-58.859,-58.859,-62.223,-62.223) ENVELOPE(140.025,140.025,-66.664,-66.664) |
geographic |
King George Island Argentine Seta Ushuaia Maxwell Bay isla Grande |
geographic_facet |
King George Island Argentine Seta Ushuaia Maxwell Bay isla Grande |
genre |
King George Island Maxwell Bay Tierra del Fuego |
genre_facet |
King George Island Maxwell Bay Tierra del Fuego |
op_source |
Johnwellsia, a new intertidal genus of Parastenheliidae (Copepoda, Harpacticoida) from the Taiwan Strait, China, including a review of the family and key to genera, pp. 236-318 in Zootaxa 5051(1) 281-282 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://zoobank.org/5CD772EB-A539-4FF2-B83E-531ED6767E80 info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/951887EAFFEEFFB0FF51D1AAE1D1FD8C info:eu-repo/semantics/altIdentifier/lsid/urn:lsid:zoobank.org:act:5CD772EB-A539-4FF2-B83E-531ED6767E80 doi:10.11646/zootaxa.5051.1.13 http://zenodo.org/record/5572417 http://publication.plazi.org/id/6921FF92FFC3FF9EFFC6D318E440FFDB doi:10.5281/zenodo.5572419 doi:10.5281/zenodo.5572423 doi:10.5281/zenodo.5572425 doi:10.5281/zenodo.5572427 doi:10.5281/zenodo.5572431 http://zoobank.org/F94203E7-FCD1-4975-BAD3-0DF534806712 doi:10.5281/zenodo.5579338 https://zenodo.org/communities/biosyslit https://zenodo.org/record/5579339 https://doi.org/10.5281/zenodo.5579339 oai:zenodo.org:5579339 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5281/zenodo.557933910.11646/zootaxa.5051.1.1310.5281/zenodo.557241910.5281/zenodo.557242310.5281/zenodo.557242510.5281/zenodo.557242710.5281/zenodo.557243110.5281/zenodo.5579338 |
_version_ |
1766057713947639808 |