A redescription of Malvinasia Cooper & Preston, 1910 (Bivalvia: Galeommatoidea), with the description of a new species

After its original description, the bivalve genus Malvinasia Cooper & Preston, 1910 was regarded as a junior synonym of Mysella or Rochefortia. However, due to the recent changes proposed in the classification and the concept of 'mysellids', the current status and concept of this genus...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	Zelaya, Diego G.
Publicado:	2015
Materias:	anatomy bivalve geographical distribution morphology new species ontogeny taxonomy Atlantic Coast [South America] England Lancashire Patagonia Preston United Kingdom Bivalvia Galeommatoidea Mysella Rochefortia (bivalve)
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02601230_v81_n4_p455_Ituarte http://hdl.handle.net/20.500.12110/paper_02601230_v81_n4_p455_Ituarte
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_02601230_v81_n4_p455_Ituarte
record_format	dspace
spelling	paper:paper_02601230_v81_n4_p455_Ituarte2023-06-08T15:22:11Z A redescription of Malvinasia Cooper & Preston, 1910 (Bivalvia: Galeommatoidea), with the description of a new species Zelaya, Diego G. anatomy bivalve geographical distribution morphology new species ontogeny taxonomy Atlantic Coast [South America] England Lancashire Patagonia Preston United Kingdom Bivalvia Galeommatoidea Mysella Rochefortia (bivalve) After its original description, the bivalve genus Malvinasia Cooper & Preston, 1910 was regarded as a junior synonym of Mysella or Rochefortia. However, due to the recent changes proposed in the classification and the concept of 'mysellids', the current status and concept of this genus remains unclear. In the present study, the relationships of the genus Malvinasia with Mysella, Rochefortia, Rochefortula and Altenaeum are reanalysed, based on the study of Malvinasia arthuri Cooper & Preston, 1910, the type species of the genus. This species has a resilifer markedly introverted below the umbones and a right valve with a single, peg-like tooth, located anterior to the ligament. This peculiar hinge morphology is consistent throughout ontogeny in the genus, being present in at least four other South American morphospecies. Based on this evidence Malvinasia is considered a full genus, which is redescribed. In addition, Malvinasia piccola, a new species from the Atlantic coast of southern Patagonia is described and Mysella (Rochefortia) molinae Ramorino, 1968 is reallocated to Malvinasia. Information on the gross anatomy of this genus is provided by first time. © The Author 2015. Published by Oxford University Press on behalf of The Malacological Society of London, all rights reserved. Fil:Zelaya, D.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02601230_v81_n4_p455_Ituarte http://hdl.handle.net/20.500.12110/paper_02601230_v81_n4_p455_Ituarte
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	anatomy bivalve geographical distribution morphology new species ontogeny taxonomy Atlantic Coast [South America] England Lancashire Patagonia Preston United Kingdom Bivalvia Galeommatoidea Mysella Rochefortia (bivalve)
spellingShingle	anatomy bivalve geographical distribution morphology new species ontogeny taxonomy Atlantic Coast [South America] England Lancashire Patagonia Preston United Kingdom Bivalvia Galeommatoidea Mysella Rochefortia (bivalve) Zelaya, Diego G. A redescription of Malvinasia Cooper & Preston, 1910 (Bivalvia: Galeommatoidea), with the description of a new species
topic_facet	anatomy bivalve geographical distribution morphology new species ontogeny taxonomy Atlantic Coast [South America] England Lancashire Patagonia Preston United Kingdom Bivalvia Galeommatoidea Mysella Rochefortia (bivalve)
description	After its original description, the bivalve genus Malvinasia Cooper & Preston, 1910 was regarded as a junior synonym of Mysella or Rochefortia. However, due to the recent changes proposed in the classification and the concept of 'mysellids', the current status and concept of this genus remains unclear. In the present study, the relationships of the genus Malvinasia with Mysella, Rochefortia, Rochefortula and Altenaeum are reanalysed, based on the study of Malvinasia arthuri Cooper & Preston, 1910, the type species of the genus. This species has a resilifer markedly introverted below the umbones and a right valve with a single, peg-like tooth, located anterior to the ligament. This peculiar hinge morphology is consistent throughout ontogeny in the genus, being present in at least four other South American morphospecies. Based on this evidence Malvinasia is considered a full genus, which is redescribed. In addition, Malvinasia piccola, a new species from the Atlantic coast of southern Patagonia is described and Mysella (Rochefortia) molinae Ramorino, 1968 is reallocated to Malvinasia. Information on the gross anatomy of this genus is provided by first time. © The Author 2015. Published by Oxford University Press on behalf of The Malacological Society of London, all rights reserved.
author	Zelaya, Diego G.
author_facet	Zelaya, Diego G.
author_sort	Zelaya, Diego G.
title	A redescription of Malvinasia Cooper & Preston, 1910 (Bivalvia: Galeommatoidea), with the description of a new species
title_short	A redescription of Malvinasia Cooper & Preston, 1910 (Bivalvia: Galeommatoidea), with the description of a new species
title_full	A redescription of Malvinasia Cooper & Preston, 1910 (Bivalvia: Galeommatoidea), with the description of a new species
title_fullStr	A redescription of Malvinasia Cooper & Preston, 1910 (Bivalvia: Galeommatoidea), with the description of a new species
title_full_unstemmed	A redescription of Malvinasia Cooper & Preston, 1910 (Bivalvia: Galeommatoidea), with the description of a new species
title_sort	redescription of malvinasia cooper & preston, 1910 (bivalvia: galeommatoidea), with the description of a new species
publishDate	2015
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02601230_v81_n4_p455_Ituarte http://hdl.handle.net/20.500.12110/paper_02601230_v81_n4_p455_Ituarte
work_keys_str_mv	AT zelayadiegog aredescriptionofmalvinasiacooperpreston1910bivalviagaleommatoideawiththedescriptionofanewspecies AT zelayadiegog redescriptionofmalvinasiacooperpreston1910bivalviagaleommatoideawiththedescriptionofanewspecies
_version_	1768542078984257536

A redescription of Malvinasia Cooper & Preston, 1910 (Bivalvia: Galeommatoidea), with the description of a new species

Ejemplares similares