Microporella sp. 1 Hincks 1877
Microporella sp. 1 Fig. 12; Table 9 Material examined NEW ZEALAND • Single infertile fragment; SW of South Island, Puysegur Bank; [46.43° S, 166.08° E]; depth 187 m; Recent; NHM-UIO BLEED 151 (voucher specimen). Description COLONY. Erect, bifoliate, branches narrow; fragment available ca 3 mm wide w...
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Online Access: | https://dx.doi.org/10.5281/zenodo.4330148 https://zenodo.org/record/4330148 |
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ftdatacite:10.5281/zenodo.4330148 |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
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unknown |
topic |
Biodiversity Taxonomy Animalia Bryozoa Gymnolaemata Cheilostomatida Microporellidae Microporella Microporella sp. 1 |
spellingShingle |
Biodiversity Taxonomy Animalia Bryozoa Gymnolaemata Cheilostomatida Microporellidae Microporella Microporella sp. 1 Martino, Emanuela Di Taylor, Paul D. Gordon, Dennis P. Microporella sp. 1 Hincks 1877 |
topic_facet |
Biodiversity Taxonomy Animalia Bryozoa Gymnolaemata Cheilostomatida Microporellidae Microporella Microporella sp. 1 |
description |
Microporella sp. 1 Fig. 12; Table 9 Material examined NEW ZEALAND • Single infertile fragment; SW of South Island, Puysegur Bank; [46.43° S, 166.08° E]; depth 187 m; Recent; NHM-UIO BLEED 151 (voucher specimen). Description COLONY. Erect, bifoliate, branches narrow; fragment available ca 3 mm wide with up to six linear series of alternating zooids on each side; interzooidal communications through multiporous septula visible at colony growing edge. AUTOZOOIDS. Distinct with interzooidal boundaries marked by thin band of slightly raised calcification on either side of a narrow grooVe, rounded rectangular to hexagonal, longer than wide (mean L/W = 1.31). Frontal shield conVex, pustulose, the pustules flat-topped, Varying in size; marginal areolae numbering about 10–12, usually elongate (25–40 µm long) especially at zooidal corners, sometimes indistinguishable from frontal pores along lateral sides of the zooids; non-marginal pseudopores about 40–60, small (diameter 10–15 µm), irregularly scattered among pustules, sometimes coalescent. ORIfICE. TransVersely D-shaped, significantly wider than long, hingeline with about 14–18 equal-sized teeth; oral spines lacking. Operculum smooth. ASCOPORE fIELD. As a narrow band of gymnocystal calcification, at approximately same leVel as orifice but beneath leVel of adjacent frontal shield, located at ca 55–75 µm from the orifice hingeline, separated from it by non-porous pustulose cryptocyst; circular (diameter 50–60 µm) to transVersely elliptical (55 µm long by 80 µm wide), opening C-shaped, 10 × 50 µm, with tiny radial denticles, and a circular tongue projecting from the distal edge. AVICULARIUM. Usually single, rarely paired, moderately large, present in all autozooids, positioned at level with the ascopore, oriented distolaterally, usually at about 45° to the long axis of the supportive autozooid; crossbar calcified; opesia semielliptical; rostrum short, subtriangular with concaVe sides, the distal end rounded, distinct channel present. Mandible 150–180 µm long, narrow and pointed. Multiple intramural buds observed in avicularia. OVICELLS. Not observed. Remarks Among all bifoliate congeners, Microporella sp. 1 mostly resembles M. hyadesi . The two species share a transVersely D-shaped orifice with equal-sized teeth in the hingeline, the characters of the ascopore and the appearance of the frontal shield made of flat-topped pustules. Differences include: the shape of the zooids (mean L/W = 1.67 and 1.31, respectiVely) which are rectangular and flat in M. hyadesi , rhomboidal to hexagonal and convex in Microporella sp. 1; the avicularium is more laterally oriented and has a wider channel in the rostrum than M. hyadesi . The two species also differ in their geographical distributions. The single available fragment of Microporella sp. 1 was found at Puysegur Bank, south west of South Island of New Zealand at a depth of 187 m, while M. hyadesi is a South Atlantic species found at a depth of 49–341 m (Hayward & Ryland 1990). : Published as part of Martino, Emanuela Di, Taylor, Paul D. & Gordon, Dennis P., 2020, Erect bifoliate species of Microporella (Bryozoa, Cheilostomata), fossil and modern, pp. 1-31 in European Journal of Taxonomy 678 on page 26, DOI: 10.5852/ejt.2020.678, http://zenodo.org/record/3928412 : {"references": ["Hayward P. J. & Ryland J. S. 1990. Some Antarctic and Subantarctic species of Microporellidae (Bryozoa: Cheilostomata). Journal of Natural History 24: 1263 - 1287. https: // doi. org / 10.1080 / 00222939000770751"]} |
format |
Text |
author |
Martino, Emanuela Di Taylor, Paul D. Gordon, Dennis P. |
author_facet |
Martino, Emanuela Di Taylor, Paul D. Gordon, Dennis P. |
author_sort |
Martino, Emanuela Di |
title |
Microporella sp. 1 Hincks 1877 |
title_short |
Microporella sp. 1 Hincks 1877 |
title_full |
Microporella sp. 1 Hincks 1877 |
title_fullStr |
Microporella sp. 1 Hincks 1877 |
title_full_unstemmed |
Microporella sp. 1 Hincks 1877 |
title_sort |
microporella sp. 1 hincks 1877 |
publisher |
Zenodo |
publishDate |
2020 |
url |
https://dx.doi.org/10.5281/zenodo.4330148 https://zenodo.org/record/4330148 |
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ENVELOPE(167.350,167.350,-78.117,-78.117) ENVELOPE(165.903,165.903,-46.590,-46.590) |
geographic |
Antarctic New Zealand Hayward Puysegur Bank |
geographic_facet |
Antarctic New Zealand Hayward Puysegur Bank |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
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Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess |
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CC0 |
op_doi |
https://doi.org/10.5281/zenodo.4330148 https://doi.org/10.5852/ejt.2020.678 https://doi.org/10.5281/zenodo.3928436 https://doi.org/10.5281/zenodo.4330147 |
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ftdatacite:10.5281/zenodo.4330148 2023-05-15T13:56:53+02:00 Microporella sp. 1 Hincks 1877 Martino, Emanuela Di Taylor, Paul D. Gordon, Dennis P. 2020 https://dx.doi.org/10.5281/zenodo.4330148 https://zenodo.org/record/4330148 unknown Zenodo http://zenodo.org/record/3928412 http://publication.plazi.org/id/FFE2991CFFC7EE37FFDF4C5FFFD48974 http://zoobank.org/C230401F-3AD1-43D8-9C82-1DEDF5CF40FD https://zenodo.org/communities/biosyslit https://dx.doi.org/10.5852/ejt.2020.678 http://zenodo.org/record/3928412 http://publication.plazi.org/id/FFE2991CFFC7EE37FFDF4C5FFFD48974 https://dx.doi.org/10.5281/zenodo.3928436 http://zoobank.org/C230401F-3AD1-43D8-9C82-1DEDF5CF40FD https://dx.doi.org/10.5281/zenodo.4330147 https://zenodo.org/communities/biosyslit Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess CC0 Biodiversity Taxonomy Animalia Bryozoa Gymnolaemata Cheilostomatida Microporellidae Microporella Microporella sp. 1 Text Taxonomic treatment article-journal ScholarlyArticle 2020 ftdatacite https://doi.org/10.5281/zenodo.4330148 https://doi.org/10.5852/ejt.2020.678 https://doi.org/10.5281/zenodo.3928436 https://doi.org/10.5281/zenodo.4330147 2021-11-05T12:55:41Z Microporella sp. 1 Fig. 12; Table 9 Material examined NEW ZEALAND • Single infertile fragment; SW of South Island, Puysegur Bank; [46.43° S, 166.08° E]; depth 187 m; Recent; NHM-UIO BLEED 151 (voucher specimen). Description COLONY. Erect, bifoliate, branches narrow; fragment available ca 3 mm wide with up to six linear series of alternating zooids on each side; interzooidal communications through multiporous septula visible at colony growing edge. AUTOZOOIDS. Distinct with interzooidal boundaries marked by thin band of slightly raised calcification on either side of a narrow grooVe, rounded rectangular to hexagonal, longer than wide (mean L/W = 1.31). Frontal shield conVex, pustulose, the pustules flat-topped, Varying in size; marginal areolae numbering about 10–12, usually elongate (25–40 µm long) especially at zooidal corners, sometimes indistinguishable from frontal pores along lateral sides of the zooids; non-marginal pseudopores about 40–60, small (diameter 10–15 µm), irregularly scattered among pustules, sometimes coalescent. ORIfICE. TransVersely D-shaped, significantly wider than long, hingeline with about 14–18 equal-sized teeth; oral spines lacking. Operculum smooth. ASCOPORE fIELD. As a narrow band of gymnocystal calcification, at approximately same leVel as orifice but beneath leVel of adjacent frontal shield, located at ca 55–75 µm from the orifice hingeline, separated from it by non-porous pustulose cryptocyst; circular (diameter 50–60 µm) to transVersely elliptical (55 µm long by 80 µm wide), opening C-shaped, 10 × 50 µm, with tiny radial denticles, and a circular tongue projecting from the distal edge. AVICULARIUM. Usually single, rarely paired, moderately large, present in all autozooids, positioned at level with the ascopore, oriented distolaterally, usually at about 45° to the long axis of the supportive autozooid; crossbar calcified; opesia semielliptical; rostrum short, subtriangular with concaVe sides, the distal end rounded, distinct channel present. Mandible 150–180 µm long, narrow and pointed. Multiple intramural buds observed in avicularia. OVICELLS. Not observed. Remarks Among all bifoliate congeners, Microporella sp. 1 mostly resembles M. hyadesi . The two species share a transVersely D-shaped orifice with equal-sized teeth in the hingeline, the characters of the ascopore and the appearance of the frontal shield made of flat-topped pustules. Differences include: the shape of the zooids (mean L/W = 1.67 and 1.31, respectiVely) which are rectangular and flat in M. hyadesi , rhomboidal to hexagonal and convex in Microporella sp. 1; the avicularium is more laterally oriented and has a wider channel in the rostrum than M. hyadesi . The two species also differ in their geographical distributions. The single available fragment of Microporella sp. 1 was found at Puysegur Bank, south west of South Island of New Zealand at a depth of 187 m, while M. hyadesi is a South Atlantic species found at a depth of 49–341 m (Hayward & Ryland 1990). : Published as part of Martino, Emanuela Di, Taylor, Paul D. & Gordon, Dennis P., 2020, Erect bifoliate species of Microporella (Bryozoa, Cheilostomata), fossil and modern, pp. 1-31 in European Journal of Taxonomy 678 on page 26, DOI: 10.5852/ejt.2020.678, http://zenodo.org/record/3928412 : {"references": ["Hayward P. J. & Ryland J. S. 1990. Some Antarctic and Subantarctic species of Microporellidae (Bryozoa: Cheilostomata). Journal of Natural History 24: 1263 - 1287. https: // doi. org / 10.1080 / 00222939000770751"]} Text Antarc* Antarctic DataCite Metadata Store (German National Library of Science and Technology) Antarctic New Zealand Hayward ENVELOPE(167.350,167.350,-78.117,-78.117) Puysegur Bank ENVELOPE(165.903,165.903,-46.590,-46.590) |