Cryosignum
Cryosignum sp. (Fig. 9) Austrosignum grande Hodgson, 1910.— Menzies, 1962: 52, fig. 11. ‘ Cryosignum’ undescribed species.— Just & Wilson, 2007: 14. Material examined. Male, 1.3 mm, Southern Chile, Seno Reloncavi, off Puerta Montt, 41°30’15’’S, 72°57’50’’W, 35 m, coarse sand, 14 July 1949, stn M...
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2021
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Online Access: | https://dx.doi.org/10.5281/zenodo.4697828 https://zenodo.org/record/4697828 |
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DataCite Metadata Store (German National Library of Science and Technology) |
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unknown |
topic |
Biodiversity Taxonomy Animalia Arthropoda Malacostraca Isopoda Paramunnidae Cryosignum |
spellingShingle |
Biodiversity Taxonomy Animalia Arthropoda Malacostraca Isopoda Paramunnidae Cryosignum Just, Jean Wilson, George D. F. Cryosignum |
topic_facet |
Biodiversity Taxonomy Animalia Arthropoda Malacostraca Isopoda Paramunnidae Cryosignum |
description |
Cryosignum sp. (Fig. 9) Austrosignum grande Hodgson, 1910.— Menzies, 1962: 52, fig. 11. ‘ Cryosignum’ undescribed species.— Just & Wilson, 2007: 14. Material examined. Male, 1.3 mm, Southern Chile, Seno Reloncavi, off Puerta Montt, 41°30’15’’S, 72°57’50’’W, 35 m, coarse sand, 14 July 1949, stn M142, SMNH Gen coll. 155406 (single specimen reported by Menzies, 1962.) We do not name this mature, but probably not fully terminal, male. It was collected in the vicinity of the type locality of Cryosignum latifrons (above), only a few month later. There is thus a possibility that the specimen could be the so far unknown male of that species, although it differs from the female in the shape of the lateral margins of pereionites 2–4. While that could be an expression of sexual dimorphism, the issue cannot be resolved until the sexes are collected together. We refer the specimen to Cryosignum on account of presence of a mandible palp (observed but not illustrated), an oval pereiopod I carpus, 2 robust setae on pereiopod I propodus, smooth pleotelson margins, and a straight, api- cally truncate uropodal endopod. This combination of characters distinguishes Cryosignum from other genera in the Austrosignum – Munnogonium complex. Menzies (1962, fig.11) illustrated this specimen with the caption (part) “…A, holotype male in toto.” That statement was clearly an unintended error. Remarks . In their study of the isopod fauna of the South Atlantic Tristan da Cunha Archipelago Sievertsen and Holthuis (1980) reported the presence of a single male of Paramunna antarctica (Richardson, 1906) from Stoltenhoff island, (37°25’S, 12°30’W, 30–45 m). Just & Wilson (2004, table 1) revived Richardson’s original genus Austrimunna for the species Austrimunna antarctica Richardson, 1906. However, Richardson’s species is part of the Paramunna complex (Just & Wilson 2004) and not he Austrosignum - Munnogonium complex under consideration here. The specimen shown by Sievertsen & Holthuis (fig. 27) is a species of Cryosignum , similar to Cryosignum sp. of this paper, but because of lack of detailed description by Sievertsen and Holthuis and differences in rendition between Sievertsen and Holthuis’ and our illustrations we cannot be certain they belong to the same species. : Published as part of Just, Jean & Wilson, George D. F., 2021, Redescriptions and new species in the ' Austrosignum-Munnogonium' complex sensu Just & Wilson (2007), mainly from the Southern Hemisphere (Crustacea Isopoda: Paramunnidae), pp. 401-447 in Zootaxa 4952 (3) on pages 416-417, DOI: 10.11646/zootaxa.4952.3.1, http://zenodo.org/record/4690423 : {"references": ["Hodgson, T. V. (1910) Crustacea. IX. Isopoda. National Antarctic Expedition, Natural History, 5, 1 - 77.", "Menzies, R. J. (1962) The zoogeography, ecology, and systematics of the Chilean marine isopods. Reports of the Lund University Chile Expedition 1948 - 49, Lunds Universitets Arsskrift, Neue Folge, Avd. 2, 57, 1 - 162.", "Just, J. & Wilson, G. D. F (2007) Revision of Austrosignum Hodgson and Munnogonium George & Stromberg (Paramunnidae) with description of eight new genera and two new species, (Crustacea: Isopoda: Asellota). Zootaxa, 1515 (1), 1 - 29. https: // doi. org / 10.11646 / zootaxa. 1515.1.1", "Sievertsen, E. & Holthuis, L. B. (1980) The marine isopod Crustacea of the Tristan da Cunha Archipelago. Gunneria, 35, 1 - 128.", "Just, J. & Wilson, G. D. F (2004) Revision of the Paramunna complex (Isopoda: Asellota: Paramunnidae). Invertebrate Systematics, 18, 377 - 466. https: // doi. org / 10.1071 / IS 03027"]} |
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Text |
author |
Just, Jean Wilson, George D. F. |
author_facet |
Just, Jean Wilson, George D. F. |
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Just, Jean |
title |
Cryosignum |
title_short |
Cryosignum |
title_full |
Cryosignum |
title_fullStr |
Cryosignum |
title_full_unstemmed |
Cryosignum |
title_sort |
cryosignum |
publisher |
Zenodo |
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2021 |
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https://dx.doi.org/10.5281/zenodo.4697828 https://zenodo.org/record/4697828 |
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ENVELOPE(140.900,140.900,-66.735,-66.735) ENVELOPE(61.911,61.911,-73.437,-73.437) ENVELOPE(166.083,166.083,-78.117,-78.117) |
geographic |
Antarctic Tristan Menzies Hodgson |
geographic_facet |
Antarctic Tristan Menzies Hodgson |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
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http://zenodo.org/record/4690423 http://publication.plazi.org/id/FFFDFF9B78296428FF9EEE30EB46FFEE http://zoobank.org/837C9916-5232-4D49-9D0D-050B539CD965 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/zootaxa.4952.3.1 http://zenodo.org/record/4690423 http://publication.plazi.org/id/FFFDFF9B78296428FF9EEE30EB46FFEE https://dx.doi.org/10.5281/zenodo.4690441 http://zoobank.org/837C9916-5232-4D49-9D0D-050B539CD965 https://dx.doi.org/10.5281/zenodo.4697827 https://zenodo.org/communities/biosyslit |
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Open Access info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5281/zenodo.4697828 https://doi.org/10.11646/zootaxa.4952.3.1 https://doi.org/10.5281/zenodo.4690441 https://doi.org/10.5281/zenodo.4697827 |
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ftdatacite:10.5281/zenodo.4697828 2023-05-15T13:36:03+02:00 Cryosignum Just, Jean Wilson, George D. F. 2021 https://dx.doi.org/10.5281/zenodo.4697828 https://zenodo.org/record/4697828 unknown Zenodo http://zenodo.org/record/4690423 http://publication.plazi.org/id/FFFDFF9B78296428FF9EEE30EB46FFEE http://zoobank.org/837C9916-5232-4D49-9D0D-050B539CD965 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/zootaxa.4952.3.1 http://zenodo.org/record/4690423 http://publication.plazi.org/id/FFFDFF9B78296428FF9EEE30EB46FFEE https://dx.doi.org/10.5281/zenodo.4690441 http://zoobank.org/837C9916-5232-4D49-9D0D-050B539CD965 https://dx.doi.org/10.5281/zenodo.4697827 https://zenodo.org/communities/biosyslit Open Access info:eu-repo/semantics/openAccess Biodiversity Taxonomy Animalia Arthropoda Malacostraca Isopoda Paramunnidae Cryosignum Text Taxonomic treatment article-journal ScholarlyArticle 2021 ftdatacite https://doi.org/10.5281/zenodo.4697828 https://doi.org/10.11646/zootaxa.4952.3.1 https://doi.org/10.5281/zenodo.4690441 https://doi.org/10.5281/zenodo.4697827 2021-11-05T12:55:41Z Cryosignum sp. (Fig. 9) Austrosignum grande Hodgson, 1910.— Menzies, 1962: 52, fig. 11. ‘ Cryosignum’ undescribed species.— Just & Wilson, 2007: 14. Material examined. Male, 1.3 mm, Southern Chile, Seno Reloncavi, off Puerta Montt, 41°30’15’’S, 72°57’50’’W, 35 m, coarse sand, 14 July 1949, stn M142, SMNH Gen coll. 155406 (single specimen reported by Menzies, 1962.) We do not name this mature, but probably not fully terminal, male. It was collected in the vicinity of the type locality of Cryosignum latifrons (above), only a few month later. There is thus a possibility that the specimen could be the so far unknown male of that species, although it differs from the female in the shape of the lateral margins of pereionites 2–4. While that could be an expression of sexual dimorphism, the issue cannot be resolved until the sexes are collected together. We refer the specimen to Cryosignum on account of presence of a mandible palp (observed but not illustrated), an oval pereiopod I carpus, 2 robust setae on pereiopod I propodus, smooth pleotelson margins, and a straight, api- cally truncate uropodal endopod. This combination of characters distinguishes Cryosignum from other genera in the Austrosignum – Munnogonium complex. Menzies (1962, fig.11) illustrated this specimen with the caption (part) “…A, holotype male in toto.” That statement was clearly an unintended error. Remarks . In their study of the isopod fauna of the South Atlantic Tristan da Cunha Archipelago Sievertsen and Holthuis (1980) reported the presence of a single male of Paramunna antarctica (Richardson, 1906) from Stoltenhoff island, (37°25’S, 12°30’W, 30–45 m). Just & Wilson (2004, table 1) revived Richardson’s original genus Austrimunna for the species Austrimunna antarctica Richardson, 1906. However, Richardson’s species is part of the Paramunna complex (Just & Wilson 2004) and not he Austrosignum - Munnogonium complex under consideration here. The specimen shown by Sievertsen & Holthuis (fig. 27) is a species of Cryosignum , similar to Cryosignum sp. of this paper, but because of lack of detailed description by Sievertsen and Holthuis and differences in rendition between Sievertsen and Holthuis’ and our illustrations we cannot be certain they belong to the same species. : Published as part of Just, Jean & Wilson, George D. F., 2021, Redescriptions and new species in the ' Austrosignum-Munnogonium' complex sensu Just & Wilson (2007), mainly from the Southern Hemisphere (Crustacea Isopoda: Paramunnidae), pp. 401-447 in Zootaxa 4952 (3) on pages 416-417, DOI: 10.11646/zootaxa.4952.3.1, http://zenodo.org/record/4690423 : {"references": ["Hodgson, T. V. (1910) Crustacea. IX. Isopoda. National Antarctic Expedition, Natural History, 5, 1 - 77.", "Menzies, R. J. (1962) The zoogeography, ecology, and systematics of the Chilean marine isopods. Reports of the Lund University Chile Expedition 1948 - 49, Lunds Universitets Arsskrift, Neue Folge, Avd. 2, 57, 1 - 162.", "Just, J. & Wilson, G. D. F (2007) Revision of Austrosignum Hodgson and Munnogonium George & Stromberg (Paramunnidae) with description of eight new genera and two new species, (Crustacea: Isopoda: Asellota). Zootaxa, 1515 (1), 1 - 29. https: // doi. org / 10.11646 / zootaxa. 1515.1.1", "Sievertsen, E. & Holthuis, L. B. (1980) The marine isopod Crustacea of the Tristan da Cunha Archipelago. Gunneria, 35, 1 - 128.", "Just, J. & Wilson, G. D. F (2004) Revision of the Paramunna complex (Isopoda: Asellota: Paramunnidae). Invertebrate Systematics, 18, 377 - 466. https: // doi. org / 10.1071 / IS 03027"]} Text Antarc* Antarctic Antarctica DataCite Metadata Store (German National Library of Science and Technology) Antarctic Tristan ENVELOPE(140.900,140.900,-66.735,-66.735) Menzies ENVELOPE(61.911,61.911,-73.437,-73.437) Hodgson ENVELOPE(166.083,166.083,-78.117,-78.117) |