Asterocheres intermedius Hansen 1923
Asterocheres intermedius (Hansen, 1923) Ascomyzon intermedium Hansen 1923: 6. Asterocheres intermedius : Stock 1966b: 152; Johnsson 1998: 91. Material examined . Holotype Ψ (ZMUC. CRU-6873/8357) collected during the “Danish Ingolf Expedition” in Davis Strait, Station 25 (63º30΄N, 54º25΄W), at 582 fa...
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Online Access: | https://doi.org/10.5281/zenodo.6221574 http://treatment.plazi.org/id/03AEF308FFE9611BFF4D1BC86B9E80A7 |
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ftzenodo:oai:zenodo.org:6221574 2024-09-15T18:03:32+00:00 Asterocheres intermedius Hansen 1923 Bandera, Eugenia Conradi, Mercedes 2009-12-31 https://doi.org/10.5281/zenodo.6221574 http://treatment.plazi.org/id/03AEF308FFE9611BFF4D1BC86B9E80A7 unknown Zenodo https://doi.org/10.5281/zenodo.185273 http://publication.plazi.org/id/FF978B70FFEB6119FFDA1B5F6A56847E https://sibils.text-analytics.ch/search/collections/plazi/03AEF308FFE9611BFF4D1BC86B9E80A7 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.6221573 https://doi.org/10.5281/zenodo.6221574 oai:zenodo.org:6221574 http://treatment.plazi.org/id/03AEF308FFE9611BFF4D1BC86B9E80A7 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Redescription of Asterocheres suberitis Giesbrecht, 1897 and A. tenerus (Hansen, 1923) (Copepoda: Siphonostomatoida), including notes on A. abyssi (Hansen, 1923) and A. intermedius (Hansen, 1923), pp. 41-52 in Zootaxa, 1980, 43, (2009-12-31) Biodiversity Taxonomy Animalia Arthropoda Maxillopoda Siphonostomatoida Asterocheridae Asterocheres Asterocheres intermedius info:eu-repo/semantics/other 2009 ftzenodo https://doi.org/10.5281/zenodo.622157410.5281/zenodo.18527310.5281/zenodo.6221573 2024-07-26T00:45:04Z Asterocheres intermedius (Hansen, 1923) Ascomyzon intermedium Hansen 1923: 6. Asterocheres intermedius : Stock 1966b: 152; Johnsson 1998: 91. Material examined . Holotype Ψ (ZMUC. CRU-6873/8357) collected during the “Danish Ingolf Expedition” in Davis Strait, Station 25 (63º30΄N, 54º25΄W), at 582 fathoms (ca. 1.06 km). Hosts . Unknown. Distribution . Atlantic Ocean (Hansen 1923). Remarks. Hansen (1923) omitted some taxonomically important appendages, such as the mandible and fifth legs (the latter lost in the type specimen), in his description of A . intermedius . Unfortunately, this species has not been recorded again, and only the antennule and antenna could be observed in the damaged, dissected holotype. Our observations of the pre-oral appendages differed from the original description as follows: 1) the antennule, despite being cleanly broken in half in the holotype, consists of 21 rather than 20 free segments; and 2) the endopod of the antenna is comprised of 3 instead of 2 segments. Despite these amendations, a detailed redescription of this species is still badly needed. Contrary to the above species, A . intermedius can be easily differentiated from its congeners. For instance, A . intermedius , along with the following 19 congeners, possess a 21-segmented antennule in females: A . astroidicola Conradi, Bandera & López-González, 2006; A . bacescui (Marcus, 1965); A . echinicola (Norman, 1868); A . ellisi Hamond, 1968; A . flustrae Ivanenko & Smurov, 1997; A . hirsutus Bandera, Conradi & López- González, 2005; A . jeanyeatmanae Yeatman, 1970; A . lilljeborgi (Boeck, 1859); A . lunatus Johnsson, 1998; A . madeirensis Bandera, Conradi & López-González, 2007; A . minutus (Claus, 1889); A . reginae Boxshall & Huys, 1994; A . simulans (T. Scott, 1898); A . suberitis Giesbrecht, 1897; A. tenerus (Hansen, 1923) (redescribed below as possessing a 21-segmented antennule in female); A . tenuicornis Brady, 1910; A . uncinatus (Kritchagin, 1873); A . urabensis Kim, 2004; and A . violaceus (Claus, ... Other/Unknown Material Davis Strait Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Arthropoda Maxillopoda Siphonostomatoida Asterocheridae Asterocheres Asterocheres intermedius |
spellingShingle |
Biodiversity Taxonomy Animalia Arthropoda Maxillopoda Siphonostomatoida Asterocheridae Asterocheres Asterocheres intermedius Bandera, Eugenia Conradi, Mercedes Asterocheres intermedius Hansen 1923 |
topic_facet |
Biodiversity Taxonomy Animalia Arthropoda Maxillopoda Siphonostomatoida Asterocheridae Asterocheres Asterocheres intermedius |
description |
Asterocheres intermedius (Hansen, 1923) Ascomyzon intermedium Hansen 1923: 6. Asterocheres intermedius : Stock 1966b: 152; Johnsson 1998: 91. Material examined . Holotype Ψ (ZMUC. CRU-6873/8357) collected during the “Danish Ingolf Expedition” in Davis Strait, Station 25 (63º30΄N, 54º25΄W), at 582 fathoms (ca. 1.06 km). Hosts . Unknown. Distribution . Atlantic Ocean (Hansen 1923). Remarks. Hansen (1923) omitted some taxonomically important appendages, such as the mandible and fifth legs (the latter lost in the type specimen), in his description of A . intermedius . Unfortunately, this species has not been recorded again, and only the antennule and antenna could be observed in the damaged, dissected holotype. Our observations of the pre-oral appendages differed from the original description as follows: 1) the antennule, despite being cleanly broken in half in the holotype, consists of 21 rather than 20 free segments; and 2) the endopod of the antenna is comprised of 3 instead of 2 segments. Despite these amendations, a detailed redescription of this species is still badly needed. Contrary to the above species, A . intermedius can be easily differentiated from its congeners. For instance, A . intermedius , along with the following 19 congeners, possess a 21-segmented antennule in females: A . astroidicola Conradi, Bandera & López-González, 2006; A . bacescui (Marcus, 1965); A . echinicola (Norman, 1868); A . ellisi Hamond, 1968; A . flustrae Ivanenko & Smurov, 1997; A . hirsutus Bandera, Conradi & López- González, 2005; A . jeanyeatmanae Yeatman, 1970; A . lilljeborgi (Boeck, 1859); A . lunatus Johnsson, 1998; A . madeirensis Bandera, Conradi & López-González, 2007; A . minutus (Claus, 1889); A . reginae Boxshall & Huys, 1994; A . simulans (T. Scott, 1898); A . suberitis Giesbrecht, 1897; A. tenerus (Hansen, 1923) (redescribed below as possessing a 21-segmented antennule in female); A . tenuicornis Brady, 1910; A . uncinatus (Kritchagin, 1873); A . urabensis Kim, 2004; and A . violaceus (Claus, ... |
format |
Other/Unknown Material |
author |
Bandera, Eugenia Conradi, Mercedes |
author_facet |
Bandera, Eugenia Conradi, Mercedes |
author_sort |
Bandera, Eugenia |
title |
Asterocheres intermedius Hansen 1923 |
title_short |
Asterocheres intermedius Hansen 1923 |
title_full |
Asterocheres intermedius Hansen 1923 |
title_fullStr |
Asterocheres intermedius Hansen 1923 |
title_full_unstemmed |
Asterocheres intermedius Hansen 1923 |
title_sort |
asterocheres intermedius hansen 1923 |
publisher |
Zenodo |
publishDate |
2009 |
url |
https://doi.org/10.5281/zenodo.6221574 http://treatment.plazi.org/id/03AEF308FFE9611BFF4D1BC86B9E80A7 |
genre |
Davis Strait |
genre_facet |
Davis Strait |
op_source |
Redescription of Asterocheres suberitis Giesbrecht, 1897 and A. tenerus (Hansen, 1923) (Copepoda: Siphonostomatoida), including notes on A. abyssi (Hansen, 1923) and A. intermedius (Hansen, 1923), pp. 41-52 in Zootaxa, 1980, 43, (2009-12-31) |
op_relation |
https://doi.org/10.5281/zenodo.185273 http://publication.plazi.org/id/FF978B70FFEB6119FFDA1B5F6A56847E https://sibils.text-analytics.ch/search/collections/plazi/03AEF308FFE9611BFF4D1BC86B9E80A7 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.6221573 https://doi.org/10.5281/zenodo.6221574 oai:zenodo.org:6221574 http://treatment.plazi.org/id/03AEF308FFE9611BFF4D1BC86B9E80A7 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.622157410.5281/zenodo.18527310.5281/zenodo.6221573 |
_version_ |
1810441028712267776 |