Pseudomacrinella Kudinova-Pasternak 1990
Pseudomacrinella Kudinova-Pasternak, 1990 Diagnosis. (modified after Kudinova-Pasternak, 1990). Female: Body tapering posteriorly. Pereonites all broader than long. Pleonites short and subequal. Pleotelson posterior half tapering to a rounded apex. Antennule fourarticled. Antenna six-articled; artic...
Main Authors: | , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
Zenodo
2016
|
Subjects: | |
Online Access: | https://dx.doi.org/10.5281/zenodo.5673140 https://zenodo.org/record/5673140 |
id |
ftdatacite:10.5281/zenodo.5673140 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Arthropoda Malacostraca Tanaidacea Pseudomacrinella |
spellingShingle |
Biodiversity Taxonomy Animalia Arthropoda Malacostraca Tanaidacea Pseudomacrinella Drumm, David T. Bird, Graham J. Pseudomacrinella Kudinova-Pasternak 1990 |
topic_facet |
Biodiversity Taxonomy Animalia Arthropoda Malacostraca Tanaidacea Pseudomacrinella |
description |
Pseudomacrinella Kudinova-Pasternak, 1990 Diagnosis. (modified after Kudinova-Pasternak, 1990). Female: Body tapering posteriorly. Pereonites all broader than long. Pleonites short and subequal. Pleotelson posterior half tapering to a rounded apex. Antennule fourarticled. Antenna six-articled; article-4 relatively short, slightly longer than articles 2 and 3 combined. Incisor process of mandible with sharp teeth, mandibular molar acuminate, unarmed. Maxilliped basis cordiform (heartshaped). Cheliped attached via sclerite; propodus with one ventral seta; fixed finger cutting edge with distal bifid tooth. Pereopods 4–6 with three carpal spiniform setae. Pleopods absent. Uropods stout; exopod one-articled, longer than half the length of endopod article-1, with one long and one short seta; endopod two-articled, article-2 slightly longer than article-1. Adult male: Antennule articles relatively broader than in female; pleopods with simple setae. Subadult male: pleopods without setae. Remarks. At present not assigned to an existing family, Pseudomacrinella shows morphological similarities to several other genera including Pseudoarthrura (family incertae sedis ), and the colletteids Arthrura Kudinova- Pasternak, 1966, Caudalonga Larsen, 2005, and Macrinella Lang, 1971. These have pleon and pleotelson shapes, mouthpart, pereopod and uropod morphologies quite similar to those of agathotanaids that hint at a phylogenetic affinity, i.e., short, annular pleonites (usually narrower than pereon and pleotelson in females); pleotelson widest posterior to margin with pleon (also invariant in the family Neotanaidae); weak, often deflexed and acuminate mandible molars; ‘stick-like’ pereopods with slender basis and distal articles (merus-propodus) with slender, bayonet-like setae; pleopods absent in females but often simple and stiff in males; and uropods short relative to pleotelson, with short rami, exopod often fused with basal article. The genus currently comprises two species including the one described below. Pseudomacrinella can be distinguished from the other genera mentioned above by the combination of a cordiform maxilliped basis, an acuminate-unarmed molar process, and stout uropods with a short, one-articled exopod and a two-articled endopod. Unfortunately, the nature of the labial lobes (which has a very characteristic sharply-acuminate shape in P. macrocephala Kudinova-Pasternak, 1990) could not be properly assessed in the present material. Both species are found in waters greater than 1000 m. Type species. Pseudomacrinella macrocephala Kudinova-Pasternak, 1990, southeastern Atlantic. Other species. Pseudomacrinella larseni n. sp. , northeastern Gulf of Mexico. : Published as part of Drumm, David T. & Bird, Graham J., 2016, New deep-sea Paratanaoidea (Crustacea: Peracarida: Tanaidacea) from the northeastern Gulf of Mexico, pp. 389-414 in Zootaxa 4154 (4) on page 409, DOI: 10.11646/zootaxa.4154.4.2, http://zenodo.org/record/260424 : {"references": ["Kudinova-Pasternak, R. K. (1990) Tanaidacea (Crustacea, Malacostraca) of the southeastern part of Atlantic Ocean and the region to the north off Mordvinov (Elephant) Island. Trudy Instituta okeanologii, Akademiya nauk SSSR, 126, 90 - 107.", "Kudinova-Pasternak, R. K. (1966) On a new abyssal tanaidacean from the Pacific, Arthrura andriashevi. Crustaceana, 12, 257 - 260. http: // dx. doi. org / 10.1163 / 156854067 X 00224", "Lang, K. (1971) Taxonomische und phylogenetische Untersuchungen uber die Tanaidaceen. 6. Revision der Gattung Paranarthrura Hansen, 1913, und Aufstellung von zwei neuen Familien, vier neuen Gattungen und zwei neuen Arten. Arkiv for Zoologi, 23 (6), 361 - 401."]} |
format |
Text |
author |
Drumm, David T. Bird, Graham J. |
author_facet |
Drumm, David T. Bird, Graham J. |
author_sort |
Drumm, David T. |
title |
Pseudomacrinella Kudinova-Pasternak 1990 |
title_short |
Pseudomacrinella Kudinova-Pasternak 1990 |
title_full |
Pseudomacrinella Kudinova-Pasternak 1990 |
title_fullStr |
Pseudomacrinella Kudinova-Pasternak 1990 |
title_full_unstemmed |
Pseudomacrinella Kudinova-Pasternak 1990 |
title_sort |
pseudomacrinella kudinova-pasternak 1990 |
publisher |
Zenodo |
publishDate |
2016 |
url |
https://dx.doi.org/10.5281/zenodo.5673140 https://zenodo.org/record/5673140 |
long_lat |
ENVELOPE(-55.184,-55.184,-61.085,-61.085) ENVELOPE(9.895,9.895,63.645,63.645) |
geographic |
Pacific Elephant Island Seta |
geographic_facet |
Pacific Elephant Island Seta |
genre |
Elephant Island |
genre_facet |
Elephant Island |
op_relation |
http://zenodo.org/record/260424 http://publication.plazi.org/id/DA15FF8AFFE0FFACFFE2484FF010C21A http://zoobank.org/B4B00DC6-D87E-480E-9A81-58294174F164 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/zootaxa.4154.4.2 http://zenodo.org/record/260424 http://publication.plazi.org/id/DA15FF8AFFE0FFACFFE2484FF010C21A http://zoobank.org/B4B00DC6-D87E-480E-9A81-58294174F164 https://dx.doi.org/10.5281/zenodo.5673141 https://zenodo.org/communities/biosyslit |
op_rights |
Open Access info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5281/zenodo.5673140 https://doi.org/10.11646/zootaxa.4154.4.2 https://doi.org/10.5281/zenodo.5673141 |
_version_ |
1766400608112214016 |
spelling |
ftdatacite:10.5281/zenodo.5673140 2023-05-15T16:04:59+02:00 Pseudomacrinella Kudinova-Pasternak 1990 Drumm, David T. Bird, Graham J. 2016 https://dx.doi.org/10.5281/zenodo.5673140 https://zenodo.org/record/5673140 unknown Zenodo http://zenodo.org/record/260424 http://publication.plazi.org/id/DA15FF8AFFE0FFACFFE2484FF010C21A http://zoobank.org/B4B00DC6-D87E-480E-9A81-58294174F164 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/zootaxa.4154.4.2 http://zenodo.org/record/260424 http://publication.plazi.org/id/DA15FF8AFFE0FFACFFE2484FF010C21A http://zoobank.org/B4B00DC6-D87E-480E-9A81-58294174F164 https://dx.doi.org/10.5281/zenodo.5673141 https://zenodo.org/communities/biosyslit Open Access info:eu-repo/semantics/openAccess Biodiversity Taxonomy Animalia Arthropoda Malacostraca Tanaidacea Pseudomacrinella Taxonomic treatment article-journal Text ScholarlyArticle 2016 ftdatacite https://doi.org/10.5281/zenodo.5673140 https://doi.org/10.11646/zootaxa.4154.4.2 https://doi.org/10.5281/zenodo.5673141 2022-02-08T13:42:09Z Pseudomacrinella Kudinova-Pasternak, 1990 Diagnosis. (modified after Kudinova-Pasternak, 1990). Female: Body tapering posteriorly. Pereonites all broader than long. Pleonites short and subequal. Pleotelson posterior half tapering to a rounded apex. Antennule fourarticled. Antenna six-articled; article-4 relatively short, slightly longer than articles 2 and 3 combined. Incisor process of mandible with sharp teeth, mandibular molar acuminate, unarmed. Maxilliped basis cordiform (heartshaped). Cheliped attached via sclerite; propodus with one ventral seta; fixed finger cutting edge with distal bifid tooth. Pereopods 4–6 with three carpal spiniform setae. Pleopods absent. Uropods stout; exopod one-articled, longer than half the length of endopod article-1, with one long and one short seta; endopod two-articled, article-2 slightly longer than article-1. Adult male: Antennule articles relatively broader than in female; pleopods with simple setae. Subadult male: pleopods without setae. Remarks. At present not assigned to an existing family, Pseudomacrinella shows morphological similarities to several other genera including Pseudoarthrura (family incertae sedis ), and the colletteids Arthrura Kudinova- Pasternak, 1966, Caudalonga Larsen, 2005, and Macrinella Lang, 1971. These have pleon and pleotelson shapes, mouthpart, pereopod and uropod morphologies quite similar to those of agathotanaids that hint at a phylogenetic affinity, i.e., short, annular pleonites (usually narrower than pereon and pleotelson in females); pleotelson widest posterior to margin with pleon (also invariant in the family Neotanaidae); weak, often deflexed and acuminate mandible molars; ‘stick-like’ pereopods with slender basis and distal articles (merus-propodus) with slender, bayonet-like setae; pleopods absent in females but often simple and stiff in males; and uropods short relative to pleotelson, with short rami, exopod often fused with basal article. The genus currently comprises two species including the one described below. Pseudomacrinella can be distinguished from the other genera mentioned above by the combination of a cordiform maxilliped basis, an acuminate-unarmed molar process, and stout uropods with a short, one-articled exopod and a two-articled endopod. Unfortunately, the nature of the labial lobes (which has a very characteristic sharply-acuminate shape in P. macrocephala Kudinova-Pasternak, 1990) could not be properly assessed in the present material. Both species are found in waters greater than 1000 m. Type species. Pseudomacrinella macrocephala Kudinova-Pasternak, 1990, southeastern Atlantic. Other species. Pseudomacrinella larseni n. sp. , northeastern Gulf of Mexico. : Published as part of Drumm, David T. & Bird, Graham J., 2016, New deep-sea Paratanaoidea (Crustacea: Peracarida: Tanaidacea) from the northeastern Gulf of Mexico, pp. 389-414 in Zootaxa 4154 (4) on page 409, DOI: 10.11646/zootaxa.4154.4.2, http://zenodo.org/record/260424 : {"references": ["Kudinova-Pasternak, R. K. (1990) Tanaidacea (Crustacea, Malacostraca) of the southeastern part of Atlantic Ocean and the region to the north off Mordvinov (Elephant) Island. Trudy Instituta okeanologii, Akademiya nauk SSSR, 126, 90 - 107.", "Kudinova-Pasternak, R. K. (1966) On a new abyssal tanaidacean from the Pacific, Arthrura andriashevi. Crustaceana, 12, 257 - 260. http: // dx. doi. org / 10.1163 / 156854067 X 00224", "Lang, K. (1971) Taxonomische und phylogenetische Untersuchungen uber die Tanaidaceen. 6. Revision der Gattung Paranarthrura Hansen, 1913, und Aufstellung von zwei neuen Familien, vier neuen Gattungen und zwei neuen Arten. Arkiv for Zoologi, 23 (6), 361 - 401."]} Text Elephant Island DataCite Metadata Store (German National Library of Science and Technology) Pacific Elephant Island ENVELOPE(-55.184,-55.184,-61.085,-61.085) Seta ENVELOPE(9.895,9.895,63.645,63.645) |