Pharyngodictyon melanesius Exbodi 2022, sp. nov.
Pharyngodictyon melanesius sp. nov. Figure 2 Etymology: from Melanesia Stations: SPANBIOS: DW 5227: 1 specimen. DW 5228: 2 specimens designated as syntypes (MNHN IT-2018- 77 Paris, France). The colonies are composed of a spherical head above a long thin peduncle (Fig. 2A). The tunic is soft, translu...
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ftzenodo:oai:zenodo.org:7187784 2023-05-15T14:04:13+02:00 Pharyngodictyon melanesius Exbodi 2022, sp. nov. Exbodi, Françoise Monniot 2022-10-12 https://zenodo.org/record/7187784 https://doi.org/10.5281/zenodo.7187784 unknown info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03AD87CEFF8CAD76FF26FE879623E211 doi:10.11646/zootaxa.5195.3.1 http://zenodo.org/record/7187776 http://publication.plazi.org/id/FF94FFB6FF8FAD72FFB1FFA19405E008 doi:10.5281/zenodo.7187782 http://zoobank.org/44C449B1-1536-40BE-AB30-4D728A90EC30 doi:10.5281/zenodo.7187783 https://zenodo.org/communities/biosyslit https://zenodo.org/record/7187784 https://doi.org/10.5281/zenodo.7187784 oai:zenodo.org:7187784 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Additional records of bathyal ascidians (Tunicata) from the New Caledonia region, pp. 201-223 in Zootaxa 5195(3) 204-205 Biodiversity Taxonomy Animalia Chordata Ascidiacea Aplousobranchia Ritterellidae Pharyngodictyon Pharyngodictyon melanesius info:eu-repo/semantics/other publication-taxonomictreatment 2022 ftzenodo https://doi.org/10.5281/zenodo.718778410.11646/zootaxa.5195.3.110.5281/zenodo.718778210.5281/zenodo.7187783 2023-03-10T19:08:57Z Pharyngodictyon melanesius sp. nov. Figure 2 Etymology: from Melanesia Stations: SPANBIOS: DW 5227: 1 specimen. DW 5228: 2 specimens designated as syntypes (MNHN IT-2018- 77 Paris, France). The colonies are composed of a spherical head above a long thin peduncle (Fig. 2A). The tunic is soft, translucent, without sand. The heads are 4 to 5mm in diameter; the longest peduncle is 30mm. The thoraces and abdomens are included in the head and the post-abdomens with gonads extend into the peduncle. The body wall has muscular fibres in a sphincter at the siphons and a few longitudinal fibres on the thorax. On one zooid two lips can be seen on each aperture. The oral tentacles are thin and numerous but could not be counted. The dorsal tubercle is button-like. The triangular dorsal languets are erect between seven to nine transverse branchial bars (Fig. 2B,C). The digestive loop forms a right angle with the thorax. The stomach is short and its wall could not be clearly seen. The post-abdomen extends the entire length of the peduncle with the gonads in a long mass in the anterior part. One larva 0.8mm in diameter was found in the colony head (Fig. 2D). Two sensitive organs are present as black spots. There are three adhesive papillae in a line each separated by a median protrusion with four round papillae on each larval side (Fig. 2D). This larva obviously differs from those of other Pharyngodictyon species recorded from the New Caledonian area: P. magnifili has similar colonies and zooids but a different larva. P. bisinus Monniot C. & Monniot F., 1991 has club-shaped sandy colonies but zooids with only two transverse branchial bars. P. cauliformis MonniotC. & Monniot F., 1991 differs by its large sandy ramified colony on a stout peduncle and a larva of three adhesive papillae circled by a ring of digitate vesicles. P. elongatum Millar, 1982 from New Zealand with club-shaped colonies has a naked tunic and the branchial tissue has three transverse bars. P. mirabile Herdman, 1886 from the Antarctic Ocean is bare, ... Other/Unknown Material Antarc* Antarctic Antarctic Ocean Zenodo Antarctic Antarctic Ocean Herdman ENVELOPE(-60.526,-60.526,-72.655,-72.655) New Zealand The Antarctic |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Chordata Ascidiacea Aplousobranchia Ritterellidae Pharyngodictyon Pharyngodictyon melanesius |
spellingShingle |
Biodiversity Taxonomy Animalia Chordata Ascidiacea Aplousobranchia Ritterellidae Pharyngodictyon Pharyngodictyon melanesius Exbodi, Françoise Monniot Pharyngodictyon melanesius Exbodi 2022, sp. nov. |
topic_facet |
Biodiversity Taxonomy Animalia Chordata Ascidiacea Aplousobranchia Ritterellidae Pharyngodictyon Pharyngodictyon melanesius |
description |
Pharyngodictyon melanesius sp. nov. Figure 2 Etymology: from Melanesia Stations: SPANBIOS: DW 5227: 1 specimen. DW 5228: 2 specimens designated as syntypes (MNHN IT-2018- 77 Paris, France). The colonies are composed of a spherical head above a long thin peduncle (Fig. 2A). The tunic is soft, translucent, without sand. The heads are 4 to 5mm in diameter; the longest peduncle is 30mm. The thoraces and abdomens are included in the head and the post-abdomens with gonads extend into the peduncle. The body wall has muscular fibres in a sphincter at the siphons and a few longitudinal fibres on the thorax. On one zooid two lips can be seen on each aperture. The oral tentacles are thin and numerous but could not be counted. The dorsal tubercle is button-like. The triangular dorsal languets are erect between seven to nine transverse branchial bars (Fig. 2B,C). The digestive loop forms a right angle with the thorax. The stomach is short and its wall could not be clearly seen. The post-abdomen extends the entire length of the peduncle with the gonads in a long mass in the anterior part. One larva 0.8mm in diameter was found in the colony head (Fig. 2D). Two sensitive organs are present as black spots. There are three adhesive papillae in a line each separated by a median protrusion with four round papillae on each larval side (Fig. 2D). This larva obviously differs from those of other Pharyngodictyon species recorded from the New Caledonian area: P. magnifili has similar colonies and zooids but a different larva. P. bisinus Monniot C. & Monniot F., 1991 has club-shaped sandy colonies but zooids with only two transverse branchial bars. P. cauliformis MonniotC. & Monniot F., 1991 differs by its large sandy ramified colony on a stout peduncle and a larva of three adhesive papillae circled by a ring of digitate vesicles. P. elongatum Millar, 1982 from New Zealand with club-shaped colonies has a naked tunic and the branchial tissue has three transverse bars. P. mirabile Herdman, 1886 from the Antarctic Ocean is bare, ... |
format |
Other/Unknown Material |
author |
Exbodi, Françoise Monniot |
author_facet |
Exbodi, Françoise Monniot |
author_sort |
Exbodi, Françoise Monniot |
title |
Pharyngodictyon melanesius Exbodi 2022, sp. nov. |
title_short |
Pharyngodictyon melanesius Exbodi 2022, sp. nov. |
title_full |
Pharyngodictyon melanesius Exbodi 2022, sp. nov. |
title_fullStr |
Pharyngodictyon melanesius Exbodi 2022, sp. nov. |
title_full_unstemmed |
Pharyngodictyon melanesius Exbodi 2022, sp. nov. |
title_sort |
pharyngodictyon melanesius exbodi 2022, sp. nov. |
publishDate |
2022 |
url |
https://zenodo.org/record/7187784 https://doi.org/10.5281/zenodo.7187784 |
long_lat |
ENVELOPE(-60.526,-60.526,-72.655,-72.655) |
geographic |
Antarctic Antarctic Ocean Herdman New Zealand The Antarctic |
geographic_facet |
Antarctic Antarctic Ocean Herdman New Zealand The Antarctic |
genre |
Antarc* Antarctic Antarctic Ocean |
genre_facet |
Antarc* Antarctic Antarctic Ocean |
op_source |
Additional records of bathyal ascidians (Tunicata) from the New Caledonia region, pp. 201-223 in Zootaxa 5195(3) 204-205 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03AD87CEFF8CAD76FF26FE879623E211 doi:10.11646/zootaxa.5195.3.1 http://zenodo.org/record/7187776 http://publication.plazi.org/id/FF94FFB6FF8FAD72FFB1FFA19405E008 doi:10.5281/zenodo.7187782 http://zoobank.org/44C449B1-1536-40BE-AB30-4D728A90EC30 doi:10.5281/zenodo.7187783 https://zenodo.org/communities/biosyslit https://zenodo.org/record/7187784 https://doi.org/10.5281/zenodo.7187784 oai:zenodo.org:7187784 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.718778410.11646/zootaxa.5195.3.110.5281/zenodo.718778210.5281/zenodo.7187783 |
_version_ |
1766275238099681280 |