Styela squamosa Herdman 1881
Styela squamosa Herdman, 1881 References and synonymy : Styela squamosa Herdman 1881: 66; Sanamyan & Sanamyan 2006: 321, figs. 7–9 (synonymy); 2012: 67, fig. 3. Material examined : One individual; trawl; -37.9651 lat. -54.5320 long. (station 10); 1144 m; 11 August 2012 (Figure 12). The specimen...
Main Authors: | , , , , , |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
Zenodo
2018
|
Subjects: | |
Online Access: | https://doi.org/10.5281/zenodo.5995354 http://treatment.plazi.org/id/A0769C75756AFFB60BB636721799370F |
id |
ftzenodo:oai:zenodo.org:5995354 |
---|---|
record_format |
openpolar |
spelling |
ftzenodo:oai:zenodo.org:5995354 2024-09-15T18:24:21+00:00 Styela squamosa Herdman 1881 Maggioni, Tamara Taverna, Anabela Reyna, Paola B. Alurralde, Gastón Rimondino, Clara Tatián, Marcos 2018-11-28 https://doi.org/10.5281/zenodo.5995354 http://treatment.plazi.org/id/A0769C75756AFFB60BB636721799370F unknown Zenodo https://doi.org/10.11646/zootaxa.4526.1.1 http://zenodo.org/record/2611359 http://publication.plazi.org/id/5C4FE40D7579FFA50B2135631216313A https://sibils.text-analytics.ch/search/collections/plazi/A0769C75756AFFB60BB636721799370F https://www.gbif.org/species/154507601 https://www.checklistbank.org/dataset/27893/taxon/A0769C75756AFFB60BB636721799370F.taxon https://doi.org/10.5281/zenodo.2611385 http://zoobank.org/028FC5EA-7123-4F3A-B6C4-5EBE57ADBE23 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.5995353 https://doi.org/10.5281/zenodo.5995354 oai:zenodo.org:5995354 http://treatment.plazi.org/id/A0769C75756AFFB60BB636721799370F info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Deep-sea ascidians (Chordata, Tunicata) from the SW Atlantic: species richness with descriptions of two new species, pp. 1-28 in Zootaxa, 4526(1), 20, (2018-11-28) Biodiversity Taxonomy Animalia Chordata Ascidiacea Stolidobranchia Styelidae Styela Styela squamosa info:eu-repo/semantics/other 2018 ftzenodo https://doi.org/10.5281/zenodo.599535410.11646/zootaxa.4526.1.110.5281/zenodo.261138510.5281/zenodo.5995353 2024-07-26T01:38:41Z Styela squamosa Herdman, 1881 References and synonymy : Styela squamosa Herdman 1881: 66; Sanamyan & Sanamyan 2006: 321, figs. 7–9 (synonymy); 2012: 67, fig. 3. Material examined : One individual; trawl; -37.9651 lat. -54.5320 long. (station 10); 1144 m; 11 August 2012 (Figure 12). The specimen measures 1.9 cm high and 1.2 cm wide. It was found completely covered by a thick and tough layer of sediment, with rests of sand and pebbles (Fig. 12). There are 18 oral tentacles disposed on the margin of an oral velum. The muscle fibers are densely packed and equally distributed on both sides. The branchial sac has four well developed folds on each side. Thin parastigmatic vessels are present. The stomach presents 24 well-marked folds and bears a small straight pyloric caecum. The border of the anus is triangular and ends near the atrial opening. There is one sinuously curved gonad on each side. The ovary is long and narrow. The small testicular follicles are placed around the distal part of each ovary. Numerous endocarps are distributed on both sides of the body. Remarks. Styela squamosa has been described from most ocean basins in the world, except from the North Atlantic and Indian Oceans, at depths ranging from 165 to 5000 m. This data permits to classify S. squamosa as an eurybathic and cosmopolitan deep-sea species (Monniot C. 1993). There is, though, some degree of character variation that falls into the range of standard intra-specific variability. Our specimen encountered off La Plata River (SW Atlantic), is closest to the description made by Sanamyan (1992) of a few individuals from the Sea of Okhotsk (NW Pacific) in relation to the shape of the border of the anus. While previous descriptions state that the border of the anus is bilobed, Sanamyan´s specimens as well as ours, present a triangular border. The only difference between our specimen and all the rest resides in the number of oral tentacles: 18 in ours and around 30 in the rest. Published as part of Maggioni, Tamara, Taverna, Anabela, Reyna, ... Other/Unknown Material North Atlantic Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Chordata Ascidiacea Stolidobranchia Styelidae Styela Styela squamosa |
spellingShingle |
Biodiversity Taxonomy Animalia Chordata Ascidiacea Stolidobranchia Styelidae Styela Styela squamosa Maggioni, Tamara Taverna, Anabela Reyna, Paola B. Alurralde, Gastón Rimondino, Clara Tatián, Marcos Styela squamosa Herdman 1881 |
topic_facet |
Biodiversity Taxonomy Animalia Chordata Ascidiacea Stolidobranchia Styelidae Styela Styela squamosa |
description |
Styela squamosa Herdman, 1881 References and synonymy : Styela squamosa Herdman 1881: 66; Sanamyan & Sanamyan 2006: 321, figs. 7–9 (synonymy); 2012: 67, fig. 3. Material examined : One individual; trawl; -37.9651 lat. -54.5320 long. (station 10); 1144 m; 11 August 2012 (Figure 12). The specimen measures 1.9 cm high and 1.2 cm wide. It was found completely covered by a thick and tough layer of sediment, with rests of sand and pebbles (Fig. 12). There are 18 oral tentacles disposed on the margin of an oral velum. The muscle fibers are densely packed and equally distributed on both sides. The branchial sac has four well developed folds on each side. Thin parastigmatic vessels are present. The stomach presents 24 well-marked folds and bears a small straight pyloric caecum. The border of the anus is triangular and ends near the atrial opening. There is one sinuously curved gonad on each side. The ovary is long and narrow. The small testicular follicles are placed around the distal part of each ovary. Numerous endocarps are distributed on both sides of the body. Remarks. Styela squamosa has been described from most ocean basins in the world, except from the North Atlantic and Indian Oceans, at depths ranging from 165 to 5000 m. This data permits to classify S. squamosa as an eurybathic and cosmopolitan deep-sea species (Monniot C. 1993). There is, though, some degree of character variation that falls into the range of standard intra-specific variability. Our specimen encountered off La Plata River (SW Atlantic), is closest to the description made by Sanamyan (1992) of a few individuals from the Sea of Okhotsk (NW Pacific) in relation to the shape of the border of the anus. While previous descriptions state that the border of the anus is bilobed, Sanamyan´s specimens as well as ours, present a triangular border. The only difference between our specimen and all the rest resides in the number of oral tentacles: 18 in ours and around 30 in the rest. Published as part of Maggioni, Tamara, Taverna, Anabela, Reyna, ... |
format |
Other/Unknown Material |
author |
Maggioni, Tamara Taverna, Anabela Reyna, Paola B. Alurralde, Gastón Rimondino, Clara Tatián, Marcos |
author_facet |
Maggioni, Tamara Taverna, Anabela Reyna, Paola B. Alurralde, Gastón Rimondino, Clara Tatián, Marcos |
author_sort |
Maggioni, Tamara |
title |
Styela squamosa Herdman 1881 |
title_short |
Styela squamosa Herdman 1881 |
title_full |
Styela squamosa Herdman 1881 |
title_fullStr |
Styela squamosa Herdman 1881 |
title_full_unstemmed |
Styela squamosa Herdman 1881 |
title_sort |
styela squamosa herdman 1881 |
publisher |
Zenodo |
publishDate |
2018 |
url |
https://doi.org/10.5281/zenodo.5995354 http://treatment.plazi.org/id/A0769C75756AFFB60BB636721799370F |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Deep-sea ascidians (Chordata, Tunicata) from the SW Atlantic: species richness with descriptions of two new species, pp. 1-28 in Zootaxa, 4526(1), 20, (2018-11-28) |
op_relation |
https://doi.org/10.11646/zootaxa.4526.1.1 http://zenodo.org/record/2611359 http://publication.plazi.org/id/5C4FE40D7579FFA50B2135631216313A https://sibils.text-analytics.ch/search/collections/plazi/A0769C75756AFFB60BB636721799370F https://www.gbif.org/species/154507601 https://www.checklistbank.org/dataset/27893/taxon/A0769C75756AFFB60BB636721799370F.taxon https://doi.org/10.5281/zenodo.2611385 http://zoobank.org/028FC5EA-7123-4F3A-B6C4-5EBE57ADBE23 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.5995353 https://doi.org/10.5281/zenodo.5995354 oai:zenodo.org:5995354 http://treatment.plazi.org/id/A0769C75756AFFB60BB636721799370F |
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.599535410.11646/zootaxa.4526.1.110.5281/zenodo.261138510.5281/zenodo.5995353 |
_version_ |
1810464691061784576 |