Megaciella lobata Lehnert & Stone, 2015, n. sp.
Megaciella lobata n. sp. (Figs. 3 & 4, Table 2) Material examined. Holotype: ZSM 20150382, collected by Jay Orr with a research survey bottom trawl (haul #166) from the FV Ocean Explorer 17 July 2012, 91 m depth, 2.1 km north of western Kiska Island, western Aleutian Islands, Bering Sea (51°59.5...
Main Authors: | , |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
Zenodo
2015
|
Subjects: | |
Online Access: | https://doi.org/10.5281/zenodo.5617462 http://treatment.plazi.org/id/EF19F029890CFFE0FF28FF5CE4349AD4 |
id |
ftzenodo:oai:zenodo.org:5617462 |
---|---|
record_format |
openpolar |
spelling |
ftzenodo:oai:zenodo.org:5617462 2024-09-15T17:36:27+00:00 Megaciella lobata Lehnert & Stone, 2015, n. sp. Lehnert, Helmut Stone, Robert P. 2015-12-31 https://doi.org/10.5281/zenodo.5617462 http://treatment.plazi.org/id/EF19F029890CFFE0FF28FF5CE4349AD4 unknown Zenodo https://doi.org/10.11646/zootaxa.4033.4.1 http://zenodo.org/record/253595 http://publication.plazi.org/id/132088518909FFE6FFBFFFCBE0179D15 https://sibils.text-analytics.ch/search/collections/plazi/EF19F029890CFFE0FF28FF5CE4349AD4 https://www.gbif.org/species/119643001 https://www.checklistbank.org/dataset/39524/taxon/EF19F029890CFFE0FF28FF5CE4349AD4.taxon https://doi.org/10.5281/zenodo.253598 https://doi.org/10.5281/zenodo.253599 http://zoobank.org/07211EC8-156F-4F9A-BE04-A020F1DECE23 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.5617461 https://doi.org/10.5281/zenodo.5617462 oai:zenodo.org:5617462 http://treatment.plazi.org/id/EF19F029890CFFE0FF28FF5CE4349AD4 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska, pp. 451-483 in Zootaxa, 4033(4), 456-457, (2015-12-31) Biodiversity Taxonomy Animalia Porifera Demospongiae Poecilosclerida Acarnidae Megaciella Megaciella lobata info:eu-repo/semantics/other 2015 ftzenodo https://doi.org/10.5281/zenodo.561746210.11646/zootaxa.4033.4.110.5281/zenodo.25359810.5281/zenodo.25359910.5281/zenodo.5617461 2024-07-26T07:18:27Z Megaciella lobata n. sp. (Figs. 3 & 4, Table 2) Material examined. Holotype: ZSM 20150382, collected by Jay Orr with a research survey bottom trawl (haul #166) from the FV Ocean Explorer 17 July 2012, 91 m depth, 2.1 km north of western Kiska Island, western Aleutian Islands, Bering Sea (51°59.5740' N, 177°23.0100' E). Water temperature = 4.3°C. Complete specimen in ethanol. Description. Habitus: This is a small, brown-colored sponge of firm, only slightly elastic consistency. It has an almost circular outline where several lobes radiate from a center (Fig. 3 A). The lobes are 0.5–2 cm in thickness and up to 2 cm long, starting from a common center, 3.5 x 4.4 x 5.3 cm. Lobes may be partially fused. The surface is hispid, due to projecting spicules of choanosomal spicule tracts (Fig. 3 B). Skeletal structure: The ectosome is a thin membrane and contains scattered anisotylotes with microspined bases and microscleres (Fig. 3 C). In the choanosome, plumose tracts, cored by smooth styles (Fig. 3 D) and echinated by acanthostyles (Fig. 3 B & E), ascend to the surface with the end of the tracts as the cause of the hispid surface. Spicules: Ectosomal anisotylotes have microspined ends, one end more inflated, the other often looking broken but, upon closer examination is complete due to micro-spination, 355–508 x 4–6 µm (Fig. 3 F). Coring the tracts are single, long smooth styles, mostly broken in spicule preparations, 1056–1645 x 19–32 µm (Fig. 3 E). Choanosomal styles, varying from completely smooth or with slightly microspined bases only, to microspined areas at both ends of the style, 735–928 x 42 –55 µm (Fig. 3 D), acanthostyles, 440–710 x 42 –53 µm (Fig. 4 A). Microscleres are toxa in two categories: long, thin toxa, 130–720 µm (Fig. 4 C) and short, thicker toxa, 29–47 µm (Fig. 4 B) and palmate isochelae, 22–47 µm (Fig. 4 D). Discussion. The WPD currently recognises 14 species of Megaciella including two species previously described from the Aleutian Island Archipelago region (Lehnert et al ., 2006b; ... Other/Unknown Material Aleutian Island Bering Sea Aleutian Islands Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Porifera Demospongiae Poecilosclerida Acarnidae Megaciella Megaciella lobata |
spellingShingle |
Biodiversity Taxonomy Animalia Porifera Demospongiae Poecilosclerida Acarnidae Megaciella Megaciella lobata Lehnert, Helmut Stone, Robert P. Megaciella lobata Lehnert & Stone, 2015, n. sp. |
topic_facet |
Biodiversity Taxonomy Animalia Porifera Demospongiae Poecilosclerida Acarnidae Megaciella Megaciella lobata |
description |
Megaciella lobata n. sp. (Figs. 3 & 4, Table 2) Material examined. Holotype: ZSM 20150382, collected by Jay Orr with a research survey bottom trawl (haul #166) from the FV Ocean Explorer 17 July 2012, 91 m depth, 2.1 km north of western Kiska Island, western Aleutian Islands, Bering Sea (51°59.5740' N, 177°23.0100' E). Water temperature = 4.3°C. Complete specimen in ethanol. Description. Habitus: This is a small, brown-colored sponge of firm, only slightly elastic consistency. It has an almost circular outline where several lobes radiate from a center (Fig. 3 A). The lobes are 0.5–2 cm in thickness and up to 2 cm long, starting from a common center, 3.5 x 4.4 x 5.3 cm. Lobes may be partially fused. The surface is hispid, due to projecting spicules of choanosomal spicule tracts (Fig. 3 B). Skeletal structure: The ectosome is a thin membrane and contains scattered anisotylotes with microspined bases and microscleres (Fig. 3 C). In the choanosome, plumose tracts, cored by smooth styles (Fig. 3 D) and echinated by acanthostyles (Fig. 3 B & E), ascend to the surface with the end of the tracts as the cause of the hispid surface. Spicules: Ectosomal anisotylotes have microspined ends, one end more inflated, the other often looking broken but, upon closer examination is complete due to micro-spination, 355–508 x 4–6 µm (Fig. 3 F). Coring the tracts are single, long smooth styles, mostly broken in spicule preparations, 1056–1645 x 19–32 µm (Fig. 3 E). Choanosomal styles, varying from completely smooth or with slightly microspined bases only, to microspined areas at both ends of the style, 735–928 x 42 –55 µm (Fig. 3 D), acanthostyles, 440–710 x 42 –53 µm (Fig. 4 A). Microscleres are toxa in two categories: long, thin toxa, 130–720 µm (Fig. 4 C) and short, thicker toxa, 29–47 µm (Fig. 4 B) and palmate isochelae, 22–47 µm (Fig. 4 D). Discussion. The WPD currently recognises 14 species of Megaciella including two species previously described from the Aleutian Island Archipelago region (Lehnert et al ., 2006b; ... |
format |
Other/Unknown Material |
author |
Lehnert, Helmut Stone, Robert P. |
author_facet |
Lehnert, Helmut Stone, Robert P. |
author_sort |
Lehnert, Helmut |
title |
Megaciella lobata Lehnert & Stone, 2015, n. sp. |
title_short |
Megaciella lobata Lehnert & Stone, 2015, n. sp. |
title_full |
Megaciella lobata Lehnert & Stone, 2015, n. sp. |
title_fullStr |
Megaciella lobata Lehnert & Stone, 2015, n. sp. |
title_full_unstemmed |
Megaciella lobata Lehnert & Stone, 2015, n. sp. |
title_sort |
megaciella lobata lehnert & stone, 2015, n. sp. |
publisher |
Zenodo |
publishDate |
2015 |
url |
https://doi.org/10.5281/zenodo.5617462 http://treatment.plazi.org/id/EF19F029890CFFE0FF28FF5CE4349AD4 |
genre |
Aleutian Island Bering Sea Aleutian Islands |
genre_facet |
Aleutian Island Bering Sea Aleutian Islands |
op_source |
New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska, pp. 451-483 in Zootaxa, 4033(4), 456-457, (2015-12-31) |
op_relation |
https://doi.org/10.11646/zootaxa.4033.4.1 http://zenodo.org/record/253595 http://publication.plazi.org/id/132088518909FFE6FFBFFFCBE0179D15 https://sibils.text-analytics.ch/search/collections/plazi/EF19F029890CFFE0FF28FF5CE4349AD4 https://www.gbif.org/species/119643001 https://www.checklistbank.org/dataset/39524/taxon/EF19F029890CFFE0FF28FF5CE4349AD4.taxon https://doi.org/10.5281/zenodo.253598 https://doi.org/10.5281/zenodo.253599 http://zoobank.org/07211EC8-156F-4F9A-BE04-A020F1DECE23 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.5617461 https://doi.org/10.5281/zenodo.5617462 oai:zenodo.org:5617462 http://treatment.plazi.org/id/EF19F029890CFFE0FF28FF5CE4349AD4 |
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.561746210.11646/zootaxa.4033.4.110.5281/zenodo.25359810.5281/zenodo.25359910.5281/zenodo.5617461 |
_version_ |
1810489662755569664 |