The southernmost South American record of the genus Halicyclops Norman, 1903 (Cyclopoida: Cyclopidae) with the description of a new species

Species of the cyclopid genus Halicyclops are widespread in coastal, estuarine and even fluvial environments worldwide. On the Atlantic coast of South America several species have been recorded as far south as the state of São Paulo in Brazil, at about 24°25'S. Specimens belonging to this genus...

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Detalles Bibliográficos
Autores principales: Menu-Marque, S., Sorarrain, D.
Formato: JOUR
Materias:
Argentina
Distribution
Halicyclops
New species
Cyclopidae
Cyclopoida
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_11755326_v_n1607_p47_MenuMarque
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_11755326_v_n1607_p47_MenuMarque
record_format dspace
spelling todo:paper_11755326_v_n1607_p47_MenuMarque2023-10-03T16:08:32Z The southernmost South American record of the genus Halicyclops Norman, 1903 (Cyclopoida: Cyclopidae) with the description of a new species Menu-Marque, S. Sorarrain, D. Argentina Distribution Halicyclops New species Cyclopidae Cyclopoida Halicyclops Species of the cyclopid genus Halicyclops are widespread in coastal, estuarine and even fluvial environments worldwide. On the Atlantic coast of South America several species have been recorded as far south as the state of São Paulo in Brazil, at about 24°25'S. Specimens belonging to this genus have been collected from plankton samples from Laguna de Mar Chiquita, a coastal lagoon on the Argentinean coast at 37°40' S, 57° 19' W. These do not fit the diagnosis of any of the known species, and are here described as a new species. Both sexes of Halicyclops ramirezi sp. nov. are described and illustrated. It is distinguished by a combination of characters relating to (1) the last endopodal segment of P4, (2) shape and armature of P5, (3) size and spinulation of the spine on the basipodite of P1, and (4) length/width ratio of the fourth A1 segment. The presence of only one seta and three spines on the male P5 is also characteristic. The presence of Halicyclops glaber Rocha, 1983 is reported for the first time for Argentina in sediments of the same locality. Copyright © 2007 - Magnolia Press. Fil:Menu-Marque, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_11755326_v_n1607_p47_MenuMarque
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentina
Distribution
Halicyclops
New species
Cyclopidae
Cyclopoida
Halicyclops
spellingShingle Argentina
Distribution
Halicyclops
New species
Cyclopidae
Cyclopoida
Halicyclops
Menu-Marque, S.
Sorarrain, D.
The southernmost South American record of the genus Halicyclops Norman, 1903 (Cyclopoida: Cyclopidae) with the description of a new species
topic_facet Argentina
Distribution
Halicyclops
New species
Cyclopidae
Cyclopoida
Halicyclops
description Species of the cyclopid genus Halicyclops are widespread in coastal, estuarine and even fluvial environments worldwide. On the Atlantic coast of South America several species have been recorded as far south as the state of São Paulo in Brazil, at about 24°25'S. Specimens belonging to this genus have been collected from plankton samples from Laguna de Mar Chiquita, a coastal lagoon on the Argentinean coast at 37°40' S, 57° 19' W. These do not fit the diagnosis of any of the known species, and are here described as a new species. Both sexes of Halicyclops ramirezi sp. nov. are described and illustrated. It is distinguished by a combination of characters relating to (1) the last endopodal segment of P4, (2) shape and armature of P5, (3) size and spinulation of the spine on the basipodite of P1, and (4) length/width ratio of the fourth A1 segment. The presence of only one seta and three spines on the male P5 is also characteristic. The presence of Halicyclops glaber Rocha, 1983 is reported for the first time for Argentina in sediments of the same locality. Copyright © 2007 - Magnolia Press.
format JOUR
author Menu-Marque, S.
Sorarrain, D.
author_facet Menu-Marque, S.
Sorarrain, D.
author_sort Menu-Marque, S.
title The southernmost South American record of the genus Halicyclops Norman, 1903 (Cyclopoida: Cyclopidae) with the description of a new species
title_short The southernmost South American record of the genus Halicyclops Norman, 1903 (Cyclopoida: Cyclopidae) with the description of a new species
title_full The southernmost South American record of the genus Halicyclops Norman, 1903 (Cyclopoida: Cyclopidae) with the description of a new species
title_fullStr The southernmost South American record of the genus Halicyclops Norman, 1903 (Cyclopoida: Cyclopidae) with the description of a new species
title_full_unstemmed The southernmost South American record of the genus Halicyclops Norman, 1903 (Cyclopoida: Cyclopidae) with the description of a new species
title_sort southernmost south american record of the genus halicyclops norman, 1903 (cyclopoida: cyclopidae) with the description of a new species
url http://hdl.handle.net/20.500.12110/paper_11755326_v_n1607_p47_MenuMarque
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