Acutihumerus patagoniensis (Sieg, 1986) (Tanaidacea: Kalliapseudidae): Supplementary description and remarks on its taxonomic status

Acutihumerus patagoniensis (Sieg, 1986) was originally described based on a single specimen from Golfo Nuevo, northern Patagonia, Argentina. Over 3000 specimens referable to this species from just a few miles of its type locality are now available. Based on these specimens, the description of A. pat...

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Autores principales:	Giachetti, C.B., Roccatagliata, D.
Formato:	JOUR
Materias:	Acutihumerus cavooreni Acutihumerus patagoniensis Kalliapseudidae Male cheliped New records Tanaidacea anatomy and histology animal animal dispersal animal structures Argentina body size Brazil classification Crustacea female growth, development and aging male organ size Animal Distribution Animal Structures Animals Body Size Female Male Organ Size
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_11755326_v3861_n4_p345_Giachetti
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_11755326_v3861_n4_p345_Giachetti
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spelling	todo:paper_11755326_v3861_n4_p345_Giachetti2023-10-03T16:08:18Z Acutihumerus patagoniensis (Sieg, 1986) (Tanaidacea: Kalliapseudidae): Supplementary description and remarks on its taxonomic status Giachetti, C.B. Roccatagliata, D. Acutihumerus cavooreni Acutihumerus patagoniensis Kalliapseudidae Male cheliped New records Kalliapseudidae Tanaidacea anatomy and histology animal animal dispersal animal structures Argentina body size Brazil classification Crustacea female growth, development and aging male organ size Animal Distribution Animal Structures Animals Argentina Body Size Brazil Crustacea Female Male Organ Size Acutihumerus patagoniensis (Sieg, 1986) was originally described based on a single specimen from Golfo Nuevo, northern Patagonia, Argentina. Over 3000 specimens referable to this species from just a few miles of its type locality are now available. Based on these specimens, the description of A. patagoniensis is completed and the ontogenetic changes of the male cheliped are described and illustrated. Acutihumerus patagoniensis has recently been considered a junior synonym of A. cavooreni (Bəcescu & Absalao, 1985) from southern Brazil. However, these species can be distinguished mainly by the male chela: A. patagoniensis has a much wider notch palm than A. cavooreni . Furthermore, most of the males herein reported from off the Río de la Plata have a chela with a narrow notch, a fact that suggests that this area might be a zone of hybridization or contact between A. patagoniensis and A. cavooreni. Hence, we claim that the recently proposed synonymy has not been proven, and the resolution of this taxonomic problem must await additional specimens of A. cavooreni from its type locality (Rio Grande do Sul, Brazil). Copyright © 2014 Magnolia Press. Fil:Roccatagliata, D. 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_v3861_n4_p345_Giachetti
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Acutihumerus cavooreni Acutihumerus patagoniensis Kalliapseudidae Male cheliped New records Kalliapseudidae Tanaidacea anatomy and histology animal animal dispersal animal structures Argentina body size Brazil classification Crustacea female growth, development and aging male organ size Animal Distribution Animal Structures Animals Argentina Body Size Brazil Crustacea Female Male Organ Size
spellingShingle	Acutihumerus cavooreni Acutihumerus patagoniensis Kalliapseudidae Male cheliped New records Kalliapseudidae Tanaidacea anatomy and histology animal animal dispersal animal structures Argentina body size Brazil classification Crustacea female growth, development and aging male organ size Animal Distribution Animal Structures Animals Argentina Body Size Brazil Crustacea Female Male Organ Size Giachetti, C.B. Roccatagliata, D. Acutihumerus patagoniensis (Sieg, 1986) (Tanaidacea: Kalliapseudidae): Supplementary description and remarks on its taxonomic status
topic_facet	Acutihumerus cavooreni Acutihumerus patagoniensis Kalliapseudidae Male cheliped New records Kalliapseudidae Tanaidacea anatomy and histology animal animal dispersal animal structures Argentina body size Brazil classification Crustacea female growth, development and aging male organ size Animal Distribution Animal Structures Animals Argentina Body Size Brazil Crustacea Female Male Organ Size
description	Acutihumerus patagoniensis (Sieg, 1986) was originally described based on a single specimen from Golfo Nuevo, northern Patagonia, Argentina. Over 3000 specimens referable to this species from just a few miles of its type locality are now available. Based on these specimens, the description of A. patagoniensis is completed and the ontogenetic changes of the male cheliped are described and illustrated. Acutihumerus patagoniensis has recently been considered a junior synonym of A. cavooreni (Bəcescu & Absalao, 1985) from southern Brazil. However, these species can be distinguished mainly by the male chela: A. patagoniensis has a much wider notch palm than A. cavooreni . Furthermore, most of the males herein reported from off the Río de la Plata have a chela with a narrow notch, a fact that suggests that this area might be a zone of hybridization or contact between A. patagoniensis and A. cavooreni. Hence, we claim that the recently proposed synonymy has not been proven, and the resolution of this taxonomic problem must await additional specimens of A. cavooreni from its type locality (Rio Grande do Sul, Brazil). Copyright © 2014 Magnolia Press.
format	JOUR
author	Giachetti, C.B. Roccatagliata, D.
author_facet	Giachetti, C.B. Roccatagliata, D.
author_sort	Giachetti, C.B.
title	Acutihumerus patagoniensis (Sieg, 1986) (Tanaidacea: Kalliapseudidae): Supplementary description and remarks on its taxonomic status
title_short	Acutihumerus patagoniensis (Sieg, 1986) (Tanaidacea: Kalliapseudidae): Supplementary description and remarks on its taxonomic status
title_full	Acutihumerus patagoniensis (Sieg, 1986) (Tanaidacea: Kalliapseudidae): Supplementary description and remarks on its taxonomic status
title_fullStr	Acutihumerus patagoniensis (Sieg, 1986) (Tanaidacea: Kalliapseudidae): Supplementary description and remarks on its taxonomic status
title_full_unstemmed	Acutihumerus patagoniensis (Sieg, 1986) (Tanaidacea: Kalliapseudidae): Supplementary description and remarks on its taxonomic status
title_sort	acutihumerus patagoniensis (sieg, 1986) (tanaidacea: kalliapseudidae): supplementary description and remarks on its taxonomic status
url	http://hdl.handle.net/20.500.12110/paper_11755326_v3861_n4_p345_Giachetti
work_keys_str_mv	AT giachetticb acutihumeruspatagoniensissieg1986tanaidaceakalliapseudidaesupplementarydescriptionandremarksonitstaxonomicstatus AT roccatagliatad acutihumeruspatagoniensissieg1986tanaidaceakalliapseudidaesupplementarydescriptionandremarksonitstaxonomicstatus
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Acutihumerus patagoniensis (Sieg, 1986) (Tanaidacea: Kalliapseudidae): Supplementary description and remarks on its taxonomic status

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