The Protonephridia of the Arctic Kinorhynch Echinoderes aquilonius (Cyclorhagida, Echinoderidae)
Abstract The cyclorhagid kinorhynch Echinoderes aquilonius Higgins & Kristensen, 1988 possesses a single pair of protonephridia located in segments 10 and 11. The protonephridia consist of: (1) three terminal cells T‐1, T‐2. T‐3 , each with two cilia; (2) a single non‐ciliated canal cell; (3) a...
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crwiley:10.1111/j.1463-6395.1989.tb01048.x 2024-06-02T08:02:08+00:00 The Protonephridia of the Arctic Kinorhynch Echinoderes aquilonius (Cyclorhagida, Echinoderidae) Kristensen, Reinhardt Møbjerg Hay‐Schmidt, Anders 1989 http://dx.doi.org/10.1111/j.1463-6395.1989.tb01048.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1463-6395.1989.tb01048.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1463-6395.1989.tb01048.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Acta Zoologica volume 70, issue 1, page 13-27 ISSN 0001-7272 1463-6395 journal-article 1989 crwiley https://doi.org/10.1111/j.1463-6395.1989.tb01048.x 2024-05-03T11:35:54Z Abstract The cyclorhagid kinorhynch Echinoderes aquilonius Higgins & Kristensen, 1988 possesses a single pair of protonephridia located in segments 10 and 11. The protonephridia consist of: (1) three terminal cells T‐1, T‐2. T‐3 , each with two cilia; (2) a single non‐ciliated canal cell; (3) a nephridiopore cell with many microvilli and a cuticular sieve plate. The protonephridia of Echinoderes are presumed to develop from the ectoderm near the area of the sieve plate on the eleventh segment, and are suspended in the dorso‐lateral pseudocoelomic cavity where they are surrounded by a basal lamina. One of the terminal cells ( T‐1 ) secondarily penetrates the basal lamina of the tenth segment and a part of the cell attaches to the cuticle. The kinorhynch protonephridia are compared with the excretory organs of other Bilateria. expecially the ‘aschelminths’, and apomorphic characters of the kinorhynch protonephridia are defined. Article in Journal/Newspaper Arctic Wiley Online Library Arctic Kristensen ENVELOPE(-159.667,-159.667,-86.333,-86.333) Acta Zoologica 70 1 13 27 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The cyclorhagid kinorhynch Echinoderes aquilonius Higgins & Kristensen, 1988 possesses a single pair of protonephridia located in segments 10 and 11. The protonephridia consist of: (1) three terminal cells T‐1, T‐2. T‐3 , each with two cilia; (2) a single non‐ciliated canal cell; (3) a nephridiopore cell with many microvilli and a cuticular sieve plate. The protonephridia of Echinoderes are presumed to develop from the ectoderm near the area of the sieve plate on the eleventh segment, and are suspended in the dorso‐lateral pseudocoelomic cavity where they are surrounded by a basal lamina. One of the terminal cells ( T‐1 ) secondarily penetrates the basal lamina of the tenth segment and a part of the cell attaches to the cuticle. The kinorhynch protonephridia are compared with the excretory organs of other Bilateria. expecially the ‘aschelminths’, and apomorphic characters of the kinorhynch protonephridia are defined. |
format |
Article in Journal/Newspaper |
author |
Kristensen, Reinhardt Møbjerg Hay‐Schmidt, Anders |
spellingShingle |
Kristensen, Reinhardt Møbjerg Hay‐Schmidt, Anders The Protonephridia of the Arctic Kinorhynch Echinoderes aquilonius (Cyclorhagida, Echinoderidae) |
author_facet |
Kristensen, Reinhardt Møbjerg Hay‐Schmidt, Anders |
author_sort |
Kristensen, Reinhardt Møbjerg |
title |
The Protonephridia of the Arctic Kinorhynch Echinoderes aquilonius (Cyclorhagida, Echinoderidae) |
title_short |
The Protonephridia of the Arctic Kinorhynch Echinoderes aquilonius (Cyclorhagida, Echinoderidae) |
title_full |
The Protonephridia of the Arctic Kinorhynch Echinoderes aquilonius (Cyclorhagida, Echinoderidae) |
title_fullStr |
The Protonephridia of the Arctic Kinorhynch Echinoderes aquilonius (Cyclorhagida, Echinoderidae) |
title_full_unstemmed |
The Protonephridia of the Arctic Kinorhynch Echinoderes aquilonius (Cyclorhagida, Echinoderidae) |
title_sort |
protonephridia of the arctic kinorhynch echinoderes aquilonius (cyclorhagida, echinoderidae) |
publisher |
Wiley |
publishDate |
1989 |
url |
http://dx.doi.org/10.1111/j.1463-6395.1989.tb01048.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1463-6395.1989.tb01048.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1463-6395.1989.tb01048.x |
long_lat |
ENVELOPE(-159.667,-159.667,-86.333,-86.333) |
geographic |
Arctic Kristensen |
geographic_facet |
Arctic Kristensen |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Acta Zoologica volume 70, issue 1, page 13-27 ISSN 0001-7272 1463-6395 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1463-6395.1989.tb01048.x |
container_title |
Acta Zoologica |
container_volume |
70 |
container_issue |
1 |
container_start_page |
13 |
op_container_end_page |
27 |
_version_ |
1800746635801657344 |