Cryosignum Just & Wilson, 2007, gen. nov.
Cryosignum gen. nov. Type species. Paramunna lunata Hale, 1937. — Here designated. Species included. Cryosignum incisum (Richardson, 1908), comb. nov., C. lunatum (Hale, 1937), comb. nov. Diagnosis. Body ovate (posteriorly tapering in terminal males). Head front margin evenly convex, not projecting....
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ftzenodo:oai:zenodo.org:5684096 2023-05-15T13:42:44+02:00 Cryosignum Just & Wilson, 2007, gen. nov. Just, Jean Wilson, George D. F. 2007-12-31 https://zenodo.org/record/5684096 https://doi.org/10.5281/zenodo.5684096 unknown info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03A6878FFF8C5A56FF4AFE3DFD97F9A5 doi:10.5281/zenodo.177291 http://publication.plazi.org/id/FF9FFFF7FF815A5BFFDDFFC8FF80FFB1 doi:10.5281/zenodo.5684095 https://zenodo.org/communities/biosyslit https://zenodo.org/record/5684096 https://doi.org/10.5281/zenodo.5684096 oai:zenodo.org:5684096 info:eu-repo/semantics/openAccess Revision of Austrosignum Hodgson and Munnogonium George & Strömberg (Paramunnidae) with descriptions of eight new genera and two new species, (Crustacea: Isopoda: Asellota), pp. 1-29 in Zootaxa 1515 14 Biodiversity Taxonomy Animalia Arthropoda Malacostraca Isopoda Paramunnidae Cryosignum info:eu-repo/semantics/other publication-taxonomictreatment 2007 ftzenodo https://doi.org/10.5281/zenodo.568409610.5281/zenodo.17729110.5281/zenodo.5684095 2023-03-10T19:12:16Z Cryosignum gen. nov. Type species. Paramunna lunata Hale, 1937. — Here designated. Species included. Cryosignum incisum (Richardson, 1908), comb. nov., C. lunatum (Hale, 1937), comb. nov. Diagnosis. Body ovate (posteriorly tapering in terminal males). Head front margin evenly convex, not projecting. Terminal males with strongly enlarged and forward pointing lateral parts of pereonite 1. Pereonites dorsally smooth or with low transverse ridges. Pleotelson lateral margins smooth. Eyestalk length at least twice greatest width. Antennula article 1 at most as long as eyestalk. Mandible palp present. Pereopod I carpus oval, with 2 straight robust setae on posterior margin; propodus with 2 robust setae on posterior margin. Pereopod II carpus and propodus posterior margin with a few short robust setae. Uropod endopod straight, apex rounded truncate. Etymology. The genus name incorporates the Greek ρύος (krios or kryos) meaning cold, alluding to the Antarctic-subantarctic distribution of its component species. Remarks. Cryosignum differs from Munnogonium and Austrosignum as discussed under Austrosignum (above). The following specimens reported by various authors as Austrosignum glaciale or A. grande may belong in Cryosignum. Pereopod I of the male of A. glaciale, Monod (1931, dorsal habitus and pereopod I illustrated; specimens not seen by us) has an oval carpus with two robust setae and two robust setae on the propodus. In A. glaciale, Nordenstam (1933; specimens seen by us) the presence of a mandible palp and normal uropods places the specimens in Cryosignum, this is an undescribed species. A. grande, Menzies (1962; specimen seen by us) has an oval pereopod I carpus, a mandible palp and normal uropods. This places the specimen in Cryosignum; it is an undescribed species. Austrosignum latifrons Menzies, 1962, which we have examined, may belong in Cryosignum, but only because it lacks the definitive features of Austrosignum and has a mandibular palp. Our analysis places this species near but not definitively part of the ... Other/Unknown Material Antarc* Antarctic Zenodo Antarctic The Antarctic Hale ENVELOPE(-86.317,-86.317,-78.067,-78.067) Menzies ENVELOPE(61.911,61.911,-73.437,-73.437) |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
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 Just & Wilson, 2007, gen. nov. |
topic_facet |
Biodiversity Taxonomy Animalia Arthropoda Malacostraca Isopoda Paramunnidae Cryosignum |
description |
Cryosignum gen. nov. Type species. Paramunna lunata Hale, 1937. — Here designated. Species included. Cryosignum incisum (Richardson, 1908), comb. nov., C. lunatum (Hale, 1937), comb. nov. Diagnosis. Body ovate (posteriorly tapering in terminal males). Head front margin evenly convex, not projecting. Terminal males with strongly enlarged and forward pointing lateral parts of pereonite 1. Pereonites dorsally smooth or with low transverse ridges. Pleotelson lateral margins smooth. Eyestalk length at least twice greatest width. Antennula article 1 at most as long as eyestalk. Mandible palp present. Pereopod I carpus oval, with 2 straight robust setae on posterior margin; propodus with 2 robust setae on posterior margin. Pereopod II carpus and propodus posterior margin with a few short robust setae. Uropod endopod straight, apex rounded truncate. Etymology. The genus name incorporates the Greek ρύος (krios or kryos) meaning cold, alluding to the Antarctic-subantarctic distribution of its component species. Remarks. Cryosignum differs from Munnogonium and Austrosignum as discussed under Austrosignum (above). The following specimens reported by various authors as Austrosignum glaciale or A. grande may belong in Cryosignum. Pereopod I of the male of A. glaciale, Monod (1931, dorsal habitus and pereopod I illustrated; specimens not seen by us) has an oval carpus with two robust setae and two robust setae on the propodus. In A. glaciale, Nordenstam (1933; specimens seen by us) the presence of a mandible palp and normal uropods places the specimens in Cryosignum, this is an undescribed species. A. grande, Menzies (1962; specimen seen by us) has an oval pereopod I carpus, a mandible palp and normal uropods. This places the specimen in Cryosignum; it is an undescribed species. Austrosignum latifrons Menzies, 1962, which we have examined, may belong in Cryosignum, but only because it lacks the definitive features of Austrosignum and has a mandibular palp. Our analysis places this species near but not definitively part of the ... |
format |
Other/Unknown Material |
author |
Just, Jean Wilson, George D. F. |
author_facet |
Just, Jean Wilson, George D. F. |
author_sort |
Just, Jean |
title |
Cryosignum Just & Wilson, 2007, gen. nov. |
title_short |
Cryosignum Just & Wilson, 2007, gen. nov. |
title_full |
Cryosignum Just & Wilson, 2007, gen. nov. |
title_fullStr |
Cryosignum Just & Wilson, 2007, gen. nov. |
title_full_unstemmed |
Cryosignum Just & Wilson, 2007, gen. nov. |
title_sort |
cryosignum just & wilson, 2007, gen. nov. |
publishDate |
2007 |
url |
https://zenodo.org/record/5684096 https://doi.org/10.5281/zenodo.5684096 |
long_lat |
ENVELOPE(-86.317,-86.317,-78.067,-78.067) ENVELOPE(61.911,61.911,-73.437,-73.437) |
geographic |
Antarctic The Antarctic Hale Menzies |
geographic_facet |
Antarctic The Antarctic Hale Menzies |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Revision of Austrosignum Hodgson and Munnogonium George & Strömberg (Paramunnidae) with descriptions of eight new genera and two new species, (Crustacea: Isopoda: Asellota), pp. 1-29 in Zootaxa 1515 14 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03A6878FFF8C5A56FF4AFE3DFD97F9A5 doi:10.5281/zenodo.177291 http://publication.plazi.org/id/FF9FFFF7FF815A5BFFDDFFC8FF80FFB1 doi:10.5281/zenodo.5684095 https://zenodo.org/communities/biosyslit https://zenodo.org/record/5684096 https://doi.org/10.5281/zenodo.5684096 oai:zenodo.org:5684096 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5281/zenodo.568409610.5281/zenodo.17729110.5281/zenodo.5684095 |
_version_ |
1766172248579768320 |