Aplidium oculatum Beniaminson 1974
Aplidium oculatum (Beniaminson, 1974) (Figure 1) Amaroucium oculatum Beniaminson, 1974: 318. Aplidium pliciferum: Sanamyan, 1998: 121 (part, specimens with massive colonies and white spots on thoraxes); Sanamyan, Sanamyan, 2010: 241. Material examined. Kamchatka, Avacha Bay, Starichkov Island, 7 m,...
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ftzenodo:oai:zenodo.org:6187482 2023-05-15T16:59:30+02:00 Aplidium oculatum Beniaminson 1974 Sanamyan, Karen Sanamyan, Nadya 2011-12-31 https://zenodo.org/record/6187482 https://doi.org/10.5281/zenodo.6187482 unknown info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03E0C42CEC55FFEAFF4D0D3AFF65FBB4 doi:10.5281/zenodo.208009 http://publication.plazi.org/id/FFD9BC54EC55FFE8FFDA0B00FF97FF80 doi:10.5281/zenodo.208010 doi:10.5281/zenodo.208015 doi:10.5281/zenodo.6187481 https://zenodo.org/communities/biosyslit https://zenodo.org/record/6187482 https://doi.org/10.5281/zenodo.6187482 oai:zenodo.org:6187482 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Shallow-water species of the genus Aplidium (Ascidiacea) from Kamchatka and Commander Islands, pp. 41-50 in Zootaxa 2922 41-43 Biodiversity Taxonomy Animalia Chordata Ascidiacea Enterogona Polyclinidae Aplidium Aplidium oculatum info:eu-repo/semantics/other publication-taxonomictreatment 2011 ftzenodo https://doi.org/10.5281/zenodo.618748210.5281/zenodo.20800910.5281/zenodo.20801010.5281/zenodo.20801510.5281/zenodo.6187481 2023-03-10T18:01:59Z Aplidium oculatum (Beniaminson, 1974) (Figure 1) Amaroucium oculatum Beniaminson, 1974: 318. Aplidium pliciferum: Sanamyan, 1998: 121 (part, specimens with massive colonies and white spots on thoraxes); Sanamyan, Sanamyan, 2010: 241. Material examined. Kamchatka, Avacha Bay, Starichkov Island, 7 m, 15.10. 2006, one colony (Figure 1 A,B); 7m, 28.07. 2004, one colony (Figure 1 C), and many other colonies from Avacha Bay. Description. The species forms large thick cushions not divided to lobes. The largest available colony is about 15 x 10 cm in extent and 6 cm high. The test is always clear, without sand on surface or in internal layers, gelatinous, moderately soft and muddy translucent. Zooids are not visible through the test on living specimens. Colour varies from yellowish-orange to reddish. Zooids are in typically small, crowded circular or short oval systems around common cloacal openings. Sometimes systems are somewhat depressed and separated by low ridges of the test, a condition seen in many Aplidium spp. (Figure 1 B). In many other specimens, and in almost all preserved colonies there are no borders of elevated test between the systems and the surface is almost smooth (Figure 1 C). Zooids are up to 30 mm long. Always simple atrial languet arises from the upper rim of the atrial aperture. Branchial sac has 12 or 13 rows of about 13 stigmata. Each row of stigmata is marked by prominent yellow spot on the thoracic wall on each side of the endostyle. A similar single pigment spot is at the upper end of the endostyle. In preserved specimens the colour of the spots fades to white, but spots are still recognizable in the specimens kept for more than 10 years in formaline. Stomach has 22–25 not quite regular folds. Postabdomen very long, contains several large ova just below the gut loop and serially arranged testis follicles along the whole length. Zooids in some colonies have embryos in atrial cavity, but no fully developed larva are found. Remarks. Original description of A. oculatum based on two colonies from ... Other/Unknown Material Kamchatka Zenodo Avacha ENVELOPE(158.503,158.503,53.040,53.040) |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Chordata Ascidiacea Enterogona Polyclinidae Aplidium Aplidium oculatum |
spellingShingle |
Biodiversity Taxonomy Animalia Chordata Ascidiacea Enterogona Polyclinidae Aplidium Aplidium oculatum Sanamyan, Karen Sanamyan, Nadya Aplidium oculatum Beniaminson 1974 |
topic_facet |
Biodiversity Taxonomy Animalia Chordata Ascidiacea Enterogona Polyclinidae Aplidium Aplidium oculatum |
description |
Aplidium oculatum (Beniaminson, 1974) (Figure 1) Amaroucium oculatum Beniaminson, 1974: 318. Aplidium pliciferum: Sanamyan, 1998: 121 (part, specimens with massive colonies and white spots on thoraxes); Sanamyan, Sanamyan, 2010: 241. Material examined. Kamchatka, Avacha Bay, Starichkov Island, 7 m, 15.10. 2006, one colony (Figure 1 A,B); 7m, 28.07. 2004, one colony (Figure 1 C), and many other colonies from Avacha Bay. Description. The species forms large thick cushions not divided to lobes. The largest available colony is about 15 x 10 cm in extent and 6 cm high. The test is always clear, without sand on surface or in internal layers, gelatinous, moderately soft and muddy translucent. Zooids are not visible through the test on living specimens. Colour varies from yellowish-orange to reddish. Zooids are in typically small, crowded circular or short oval systems around common cloacal openings. Sometimes systems are somewhat depressed and separated by low ridges of the test, a condition seen in many Aplidium spp. (Figure 1 B). In many other specimens, and in almost all preserved colonies there are no borders of elevated test between the systems and the surface is almost smooth (Figure 1 C). Zooids are up to 30 mm long. Always simple atrial languet arises from the upper rim of the atrial aperture. Branchial sac has 12 or 13 rows of about 13 stigmata. Each row of stigmata is marked by prominent yellow spot on the thoracic wall on each side of the endostyle. A similar single pigment spot is at the upper end of the endostyle. In preserved specimens the colour of the spots fades to white, but spots are still recognizable in the specimens kept for more than 10 years in formaline. Stomach has 22–25 not quite regular folds. Postabdomen very long, contains several large ova just below the gut loop and serially arranged testis follicles along the whole length. Zooids in some colonies have embryos in atrial cavity, but no fully developed larva are found. Remarks. Original description of A. oculatum based on two colonies from ... |
format |
Other/Unknown Material |
author |
Sanamyan, Karen Sanamyan, Nadya |
author_facet |
Sanamyan, Karen Sanamyan, Nadya |
author_sort |
Sanamyan, Karen |
title |
Aplidium oculatum Beniaminson 1974 |
title_short |
Aplidium oculatum Beniaminson 1974 |
title_full |
Aplidium oculatum Beniaminson 1974 |
title_fullStr |
Aplidium oculatum Beniaminson 1974 |
title_full_unstemmed |
Aplidium oculatum Beniaminson 1974 |
title_sort |
aplidium oculatum beniaminson 1974 |
publishDate |
2011 |
url |
https://zenodo.org/record/6187482 https://doi.org/10.5281/zenodo.6187482 |
long_lat |
ENVELOPE(158.503,158.503,53.040,53.040) |
geographic |
Avacha |
geographic_facet |
Avacha |
genre |
Kamchatka |
genre_facet |
Kamchatka |
op_source |
Shallow-water species of the genus Aplidium (Ascidiacea) from Kamchatka and Commander Islands, pp. 41-50 in Zootaxa 2922 41-43 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03E0C42CEC55FFEAFF4D0D3AFF65FBB4 doi:10.5281/zenodo.208009 http://publication.plazi.org/id/FFD9BC54EC55FFE8FFDA0B00FF97FF80 doi:10.5281/zenodo.208010 doi:10.5281/zenodo.208015 doi:10.5281/zenodo.6187481 https://zenodo.org/communities/biosyslit https://zenodo.org/record/6187482 https://doi.org/10.5281/zenodo.6187482 oai:zenodo.org:6187482 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.618748210.5281/zenodo.20800910.5281/zenodo.20801010.5281/zenodo.20801510.5281/zenodo.6187481 |
_version_ |
1766051780971462656 |