Setosella spiralis Silen 1942
Setosella spiralis Silén, 1942 (Figs 15–17; Tables 1, 2, 5) Setosella spiralis Silén, 1942: p. 4, fig. 3; pl. 2, fig. 7. Examined material. Holotype SMNH-Type-1893, North Atlantic Ocean, Josephine Bank, 36°45,5’N, 14°12,2’W, 340–430 fathoms ( c. 500–650 m), Josephine Expedition 1869, a dead colony o...
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ftzenodo:oai:zenodo.org:5586289 2024-09-15T18:24:13+00:00 Setosella spiralis Silen 1942 Rosso, A. Martino, E. Di Gerovasileiou, V. 2020-01-24 https://doi.org/10.5281/zenodo.5586289 http://treatment.plazi.org/id/0C3887F8FF8EFFFEFF72FF61EF417ACE unknown Zenodo https://doi.org/10.11646/zootaxa.4728.4.1 http://zenodo.org/record/3626494 http://publication.plazi.org/id/F001FF80FF97FFE5FFE5FFF8EE357865 https://sibils.text-analytics.ch/search/collections/plazi/0C3887F8FF8EFFFEFF72FF61EF417ACE https://www.gbif.org/species/161838346 https://www.checklistbank.org/dataset/24262/taxon/0C3887F8FF8EFFFEFF72FF61EF417ACE.taxon https://doi.org/10.5281/zenodo.3626524 https://doi.org/10.5281/zenodo.3626526 https://doi.org/10.5281/zenodo.3626528 http://table.plazi.org/id/D0EE6666FF91FFE3FF75FE32EF437AD9 http://table.plazi.org/id/D0EE6666FF9BFFE9FF75FDC1EA987A12 http://table.plazi.org/id/D0EE6666FFB7FFC5FF72FF62EC85797B http://zoobank.org/3E4C6C25-3630-4842-A776-F87CF2E693FD https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.5586288 https://doi.org/10.5281/zenodo.5586289 oai:zenodo.org:5586289 http://treatment.plazi.org/id/0C3887F8FF8EFFFEFF72FF61EF417ACE info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Revision of the genus Setosella (Bryozoa: Cheilostomata) with description of new species from deep-waters and submarine caves of the Mediterranean Sea, pp. 401-442 in Zootaxa, 4728(4), 426-428, (2020-01-24) Biodiversity Taxonomy Animalia Bryozoa Gymnolaemata Cheilostomatida Setosellidae Setosella Setosella spiralis info:eu-repo/semantics/other 2020 ftzenodo https://doi.org/10.5281/zenodo.558628910.11646/zootaxa.4728.4.110.5281/zenodo.362652410.5281/zenodo.362652610.5281/zenodo.362652810.5281/zenodo.5586288 2024-07-26T12:51:48Z Setosella spiralis Silén, 1942 (Figs 15–17; Tables 1, 2, 5) Setosella spiralis Silén, 1942: p. 4, fig. 3; pl. 2, fig. 7. Examined material. Holotype SMNH-Type-1893, North Atlantic Ocean, Josephine Bank, 36°45,5’N, 14°12,2’W, 340–430 fathoms ( c. 500–650 m), Josephine Expedition 1869, a dead colony on the external surface of a bivalve. Paratypes, same collection number and details as the holotype: (1) five dead colonies, two on internal surfaces of bivalve shells, one on an unidentified bioclast, and two on a 4x 2.5x 2.5 cm biogenic concretion; (2) a live colony on a bioclast. Description. Colony small, including c. 20 zooids, exceptionally 37 in the largest available colony, entirely adhering to the substratum, consisting of spirally arranged zooids typically in a single right-coiled row and tightly adherent whorls giving a very solid appearance (Figs 15a, 16a). Each autozooid budding a disto-lateral daughter zooid from an elliptical septulum (30–45 µm long) located at about mid-length on the right side (Figs 15a, b, 16a, b, 17). A smaller, comparably more distally located subcircular pore (15–20 µm wide) present on its left side, seemingly inactive at the periphery of the colony, but functional to connect zooids in two subsequent whorls. New budded zooids variable in position in relation to the parental zooid, from disto-lateral at an angle of c. 45° with the longitudinal axis of the parental zooid, to mid-lateral or even proximo-lateral and subparallel (or sometimes orthogonal) with the longitudinal axis of the parental zooid. In one of the paratypes, the second periancestrular zooid contemporaneously buds three zooids (one distally and two disto-laterally) developing a ‘triple’ spiral (Fig. 17). Autozooids thick in lateral view (Figs 15e, 16d), irregularly elongate and asymmetrical in frontal view, with a cuneiform proximal end and a straight oblique termination on the left side contributing to the continuous, regularly curved colony edge. Lateral gymnocyst contributing to zooidal asymmetry, extensively ... Other/Unknown Material North Atlantic Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Bryozoa Gymnolaemata Cheilostomatida Setosellidae Setosella Setosella spiralis |
spellingShingle |
Biodiversity Taxonomy Animalia Bryozoa Gymnolaemata Cheilostomatida Setosellidae Setosella Setosella spiralis Rosso, A. Martino, E. Di Gerovasileiou, V. Setosella spiralis Silen 1942 |
topic_facet |
Biodiversity Taxonomy Animalia Bryozoa Gymnolaemata Cheilostomatida Setosellidae Setosella Setosella spiralis |
description |
Setosella spiralis Silén, 1942 (Figs 15–17; Tables 1, 2, 5) Setosella spiralis Silén, 1942: p. 4, fig. 3; pl. 2, fig. 7. Examined material. Holotype SMNH-Type-1893, North Atlantic Ocean, Josephine Bank, 36°45,5’N, 14°12,2’W, 340–430 fathoms ( c. 500–650 m), Josephine Expedition 1869, a dead colony on the external surface of a bivalve. Paratypes, same collection number and details as the holotype: (1) five dead colonies, two on internal surfaces of bivalve shells, one on an unidentified bioclast, and two on a 4x 2.5x 2.5 cm biogenic concretion; (2) a live colony on a bioclast. Description. Colony small, including c. 20 zooids, exceptionally 37 in the largest available colony, entirely adhering to the substratum, consisting of spirally arranged zooids typically in a single right-coiled row and tightly adherent whorls giving a very solid appearance (Figs 15a, 16a). Each autozooid budding a disto-lateral daughter zooid from an elliptical septulum (30–45 µm long) located at about mid-length on the right side (Figs 15a, b, 16a, b, 17). A smaller, comparably more distally located subcircular pore (15–20 µm wide) present on its left side, seemingly inactive at the periphery of the colony, but functional to connect zooids in two subsequent whorls. New budded zooids variable in position in relation to the parental zooid, from disto-lateral at an angle of c. 45° with the longitudinal axis of the parental zooid, to mid-lateral or even proximo-lateral and subparallel (or sometimes orthogonal) with the longitudinal axis of the parental zooid. In one of the paratypes, the second periancestrular zooid contemporaneously buds three zooids (one distally and two disto-laterally) developing a ‘triple’ spiral (Fig. 17). Autozooids thick in lateral view (Figs 15e, 16d), irregularly elongate and asymmetrical in frontal view, with a cuneiform proximal end and a straight oblique termination on the left side contributing to the continuous, regularly curved colony edge. Lateral gymnocyst contributing to zooidal asymmetry, extensively ... |
format |
Other/Unknown Material |
author |
Rosso, A. Martino, E. Di Gerovasileiou, V. |
author_facet |
Rosso, A. Martino, E. Di Gerovasileiou, V. |
author_sort |
Rosso, A. |
title |
Setosella spiralis Silen 1942 |
title_short |
Setosella spiralis Silen 1942 |
title_full |
Setosella spiralis Silen 1942 |
title_fullStr |
Setosella spiralis Silen 1942 |
title_full_unstemmed |
Setosella spiralis Silen 1942 |
title_sort |
setosella spiralis silen 1942 |
publisher |
Zenodo |
publishDate |
2020 |
url |
https://doi.org/10.5281/zenodo.5586289 http://treatment.plazi.org/id/0C3887F8FF8EFFFEFF72FF61EF417ACE |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Revision of the genus Setosella (Bryozoa: Cheilostomata) with description of new species from deep-waters and submarine caves of the Mediterranean Sea, pp. 401-442 in Zootaxa, 4728(4), 426-428, (2020-01-24) |
op_relation |
https://doi.org/10.11646/zootaxa.4728.4.1 http://zenodo.org/record/3626494 http://publication.plazi.org/id/F001FF80FF97FFE5FFE5FFF8EE357865 https://sibils.text-analytics.ch/search/collections/plazi/0C3887F8FF8EFFFEFF72FF61EF417ACE https://www.gbif.org/species/161838346 https://www.checklistbank.org/dataset/24262/taxon/0C3887F8FF8EFFFEFF72FF61EF417ACE.taxon https://doi.org/10.5281/zenodo.3626524 https://doi.org/10.5281/zenodo.3626526 https://doi.org/10.5281/zenodo.3626528 http://table.plazi.org/id/D0EE6666FF91FFE3FF75FE32EF437AD9 http://table.plazi.org/id/D0EE6666FF9BFFE9FF75FDC1EA987A12 http://table.plazi.org/id/D0EE6666FFB7FFC5FF72FF62EC85797B http://zoobank.org/3E4C6C25-3630-4842-A776-F87CF2E693FD https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.5586288 https://doi.org/10.5281/zenodo.5586289 oai:zenodo.org:5586289 http://treatment.plazi.org/id/0C3887F8FF8EFFFEFF72FF61EF417ACE |
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.558628910.11646/zootaxa.4728.4.110.5281/zenodo.362652410.5281/zenodo.362652610.5281/zenodo.362652810.5281/zenodo.5586288 |
_version_ |
1810464534169649152 |