Monstrilloida (Crustacea: Copepoda) from the Beagle Channel, South America
Monstrilloid copepods were collected during zooplankton surveys in the Beagle Channel at the southernmost end of South America. These specimens represent two species of Monstrillopsis, one of them undescribed, and one new species of Monstrilla. Monstrillopsis igniterra n. sp. is related to forms of...
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ftnaturalis:oai:naturalis:291893 2023-05-15T18:25:39+02:00 Monstrilloida (Crustacea: Copepoda) from the Beagle Channel, South America Suárez-Morales, E. Ramírez, F.C. Derisio, C. 2008 application/pdf http://www.repository.naturalis.nl/record/291893 http://www.repository.naturalis.nl/document/121996 unknown http://www.repository.naturalis.nl/record/291893 http://www.repository.naturalis.nl/document/121996 (c) Naturalis Contributions to Zoology (1383-4517) vol.77 (2008) nr.4 p.217 associated copepoda marine zooplankton Southern Ocean taxonomy 42.74 Article / Letter to the editor 2008 ftnaturalis 2022-09-01T06:24:40Z Monstrilloid copepods were collected during zooplankton surveys in the Beagle Channel at the southernmost end of South America. These specimens represent two species of Monstrillopsis, one of them undescribed, and one new species of Monstrilla. Monstrillopsis igniterra n. sp. is related to forms of the M. dubia species group, and particularly to M. ferrarii and M. chilensis. It differs from these species in the relative length of the antennules, the shape and relative size of the genital double and anal somites, details of the antennular armature, and the possession of a short inner caudal seta. The other species of Monstrillopsis, M. chilensis, was previously known only from the Southeast Pacific off Chile, and was originally described from female specimens only. Male individuals found in the Beagle Channel are described and assigned herein to this species. These are the first records of Monstrillopsis from high latitudes of South America. The new species Monstrilla patagonica n.sp. is represented by males. It is characterized by the structure and relative size of the genital lappets, details of the antennular structure, armature, relative size and the number (6) of caudal setae. It belongs to a small group of species with highly modified, pectinate male antennules. A female specimen identified as M. helgolandica 35 years ago from southern Argentina is tentatively reidentified as the female of this new species, based on its differences from M. helgolandica and the rarity of this species group in the region. Article in Journal/Newspaper Southern Ocean Copepods Naturalis Digital Academic Repository (National Museum of Natural History in the Netherlands) Argentina Pacific Seta ENVELOPE(9.895,9.895,63.645,63.645) Southern Ocean |
institution |
Open Polar |
collection |
Naturalis Digital Academic Repository (National Museum of Natural History in the Netherlands) |
op_collection_id |
ftnaturalis |
language |
unknown |
topic |
associated copepoda marine zooplankton Southern Ocean taxonomy 42.74 |
spellingShingle |
associated copepoda marine zooplankton Southern Ocean taxonomy 42.74 Suárez-Morales, E. Ramírez, F.C. Derisio, C. Monstrilloida (Crustacea: Copepoda) from the Beagle Channel, South America |
topic_facet |
associated copepoda marine zooplankton Southern Ocean taxonomy 42.74 |
description |
Monstrilloid copepods were collected during zooplankton surveys in the Beagle Channel at the southernmost end of South America. These specimens represent two species of Monstrillopsis, one of them undescribed, and one new species of Monstrilla. Monstrillopsis igniterra n. sp. is related to forms of the M. dubia species group, and particularly to M. ferrarii and M. chilensis. It differs from these species in the relative length of the antennules, the shape and relative size of the genital double and anal somites, details of the antennular armature, and the possession of a short inner caudal seta. The other species of Monstrillopsis, M. chilensis, was previously known only from the Southeast Pacific off Chile, and was originally described from female specimens only. Male individuals found in the Beagle Channel are described and assigned herein to this species. These are the first records of Monstrillopsis from high latitudes of South America. The new species Monstrilla patagonica n.sp. is represented by males. It is characterized by the structure and relative size of the genital lappets, details of the antennular structure, armature, relative size and the number (6) of caudal setae. It belongs to a small group of species with highly modified, pectinate male antennules. A female specimen identified as M. helgolandica 35 years ago from southern Argentina is tentatively reidentified as the female of this new species, based on its differences from M. helgolandica and the rarity of this species group in the region. |
format |
Article in Journal/Newspaper |
author |
Suárez-Morales, E. Ramírez, F.C. Derisio, C. |
author_facet |
Suárez-Morales, E. Ramírez, F.C. Derisio, C. |
author_sort |
Suárez-Morales, E. |
title |
Monstrilloida (Crustacea: Copepoda) from the Beagle Channel, South America |
title_short |
Monstrilloida (Crustacea: Copepoda) from the Beagle Channel, South America |
title_full |
Monstrilloida (Crustacea: Copepoda) from the Beagle Channel, South America |
title_fullStr |
Monstrilloida (Crustacea: Copepoda) from the Beagle Channel, South America |
title_full_unstemmed |
Monstrilloida (Crustacea: Copepoda) from the Beagle Channel, South America |
title_sort |
monstrilloida (crustacea: copepoda) from the beagle channel, south america |
publishDate |
2008 |
url |
http://www.repository.naturalis.nl/record/291893 http://www.repository.naturalis.nl/document/121996 |
long_lat |
ENVELOPE(9.895,9.895,63.645,63.645) |
geographic |
Argentina Pacific Seta Southern Ocean |
geographic_facet |
Argentina Pacific Seta Southern Ocean |
genre |
Southern Ocean Copepods |
genre_facet |
Southern Ocean Copepods |
op_source |
Contributions to Zoology (1383-4517) vol.77 (2008) nr.4 p.217 |
op_relation |
http://www.repository.naturalis.nl/record/291893 http://www.repository.naturalis.nl/document/121996 |
op_rights |
(c) Naturalis |
_version_ |
1766207236661575680 |