A new Benthopelagic species of Heterokrohnia (Chaetognatha) from the North Atlantic Ocean
A new species of Heterokrohnia, H. mirabiloides, is described from the “Discovery” collections made in the North-East Atlantic. It differs from the two other species of the “mirabilis” group mainly in the cephalic armature, particularly the posterior teeth which are much less numerous and bent at ri...
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ftnaturalis:oai:naturalis:505330 2023-05-15T17:32:12+02:00 A new Benthopelagic species of Heterokrohnia (Chaetognatha) from the North Atlantic Ocean Casanova, Jean-Paul Chidgey, Kathleen 1990 application/pdf http://www.repository.naturalis.nl/record/505330 http://www.repository.naturalis.nl/document/548987 unknown http://www.repository.naturalis.nl/record/505330 http://www.repository.naturalis.nl/document/548987 (c) Naturalis Bulletin Zoologisch Museum (0165-9464) vol.12 (1990) nr.8 p.109 Article / Letter to the editor 1990 ftnaturalis 2022-09-01T06:21:26Z A new species of Heterokrohnia, H. mirabiloides, is described from the “Discovery” collections made in the North-East Atlantic. It differs from the two other species of the “mirabilis” group mainly in the cephalic armature, particularly the posterior teeth which are much less numerous and bent at rigth-angle. Although H. mirabiloides is benthopelagic as are all the Heterokrohnia species, most specimens have been caught using benthic sampling gear (31 out of 33 specimens). On the other hand H. mirabilis has been found in both benthic and pelagic samples (14 and 19 specimens, respectively). It appears that H. mirabiloides is the shallowest living species of the genus because the great majority of specimens (24) have been found at depths between 1300 and 1400 m, whereas H. mirabilis appeared only in hauls below 2700 m. Article in Journal/Newspaper North Atlantic North East Atlantic Naturalis Digital Academic Repository (National Museum of Natural History in the Netherlands) |
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Open Polar |
collection |
Naturalis Digital Academic Repository (National Museum of Natural History in the Netherlands) |
op_collection_id |
ftnaturalis |
language |
unknown |
description |
A new species of Heterokrohnia, H. mirabiloides, is described from the “Discovery” collections made in the North-East Atlantic. It differs from the two other species of the “mirabilis” group mainly in the cephalic armature, particularly the posterior teeth which are much less numerous and bent at rigth-angle. Although H. mirabiloides is benthopelagic as are all the Heterokrohnia species, most specimens have been caught using benthic sampling gear (31 out of 33 specimens). On the other hand H. mirabilis has been found in both benthic and pelagic samples (14 and 19 specimens, respectively). It appears that H. mirabiloides is the shallowest living species of the genus because the great majority of specimens (24) have been found at depths between 1300 and 1400 m, whereas H. mirabilis appeared only in hauls below 2700 m. |
format |
Article in Journal/Newspaper |
author |
Casanova, Jean-Paul Chidgey, Kathleen |
spellingShingle |
Casanova, Jean-Paul Chidgey, Kathleen A new Benthopelagic species of Heterokrohnia (Chaetognatha) from the North Atlantic Ocean |
author_facet |
Casanova, Jean-Paul Chidgey, Kathleen |
author_sort |
Casanova, Jean-Paul |
title |
A new Benthopelagic species of Heterokrohnia (Chaetognatha) from the North Atlantic Ocean |
title_short |
A new Benthopelagic species of Heterokrohnia (Chaetognatha) from the North Atlantic Ocean |
title_full |
A new Benthopelagic species of Heterokrohnia (Chaetognatha) from the North Atlantic Ocean |
title_fullStr |
A new Benthopelagic species of Heterokrohnia (Chaetognatha) from the North Atlantic Ocean |
title_full_unstemmed |
A new Benthopelagic species of Heterokrohnia (Chaetognatha) from the North Atlantic Ocean |
title_sort |
new benthopelagic species of heterokrohnia (chaetognatha) from the north atlantic ocean |
publishDate |
1990 |
url |
http://www.repository.naturalis.nl/record/505330 http://www.repository.naturalis.nl/document/548987 |
genre |
North Atlantic North East Atlantic |
genre_facet |
North Atlantic North East Atlantic |
op_source |
Bulletin Zoologisch Museum (0165-9464) vol.12 (1990) nr.8 p.109 |
op_relation |
http://www.repository.naturalis.nl/record/505330 http://www.repository.naturalis.nl/document/548987 |
op_rights |
(c) Naturalis |
_version_ |
1766130201593380864 |