Decrypting the feared genus Hiatella (Bivalvia): South American species
Abstract Hiatella is among the most poorly understood bivalve genera. Most of the species remain known only from shell morphology, which has proved to be extremely variable in the group. Few studies have addressed their anatomy and biology, and no studies have combined morphological, anatomical and...
Published in: | Zoological Journal of the Linnean Society |
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Online Access: | http://dx.doi.org/10.1093/zoolinnean/zlad064 https://academic.oup.com/zoolinnean/advance-article-pdf/doi/10.1093/zoolinnean/zlad064/52044378/zlad064.pdf |
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croxfordunivpr:10.1093/zoolinnean/zlad064 2023-11-12T04:04:34+01:00 Decrypting the feared genus Hiatella (Bivalvia): South American species Zelaya, Diego G Güller, Marina Agencia Nacional de Promoción de la Investigación, el Desarrollo Tecnológico y la Innovación 2023 http://dx.doi.org/10.1093/zoolinnean/zlad064 https://academic.oup.com/zoolinnean/advance-article-pdf/doi/10.1093/zoolinnean/zlad064/52044378/zlad064.pdf en eng Oxford University Press (OUP) https://academic.oup.com/pages/standard-publication-reuse-rights Zoological Journal of the Linnean Society ISSN 0024-4082 1096-3642 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2023 croxfordunivpr https://doi.org/10.1093/zoolinnean/zlad064 2023-10-20T09:04:23Z Abstract Hiatella is among the most poorly understood bivalve genera. Most of the species remain known only from shell morphology, which has proved to be extremely variable in the group. Few studies have addressed their anatomy and biology, and no studies have combined morphological, anatomical and biological characters with molecular characters. This has led to the hiatellids all around the world being regarded as a single, widely distributed species. This contribution represents a step towards a better understanding of hiatellids worldwide by providing the first integrative study of the species occurring in southern South America. Three entities are recognized: Hiatella meridionalis, Hiatella barnea and Hiatella umbonata sp. nov. To understand their intraspecific variability, all the species are carefully described and figured, based on large series of specimens. Saxicava chilensis, Saxicava mollis, Saxicava lebruni and Saxicava subantarctica are considered synonyms of H. meridionalis; a lectotype for S. subantarctica is designated; and S. antarctica and S. frigida are regarded as nomina dubia. This study suggests that worldwide living hiatellids might have originated from South American species and that reduction/loss of hinge teeth during ontogeny and life on hard substrates or on/inside other invertebrates would represent derived traits within the genus Hiatella. Article in Journal/Newspaper Antarc* Antarctica Oxford University Press (via Crossref) Zoological Journal of the Linnean Society |
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Open Polar |
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Oxford University Press (via Crossref) |
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croxfordunivpr |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
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Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Zelaya, Diego G Güller, Marina Decrypting the feared genus Hiatella (Bivalvia): South American species |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Abstract Hiatella is among the most poorly understood bivalve genera. Most of the species remain known only from shell morphology, which has proved to be extremely variable in the group. Few studies have addressed their anatomy and biology, and no studies have combined morphological, anatomical and biological characters with molecular characters. This has led to the hiatellids all around the world being regarded as a single, widely distributed species. This contribution represents a step towards a better understanding of hiatellids worldwide by providing the first integrative study of the species occurring in southern South America. Three entities are recognized: Hiatella meridionalis, Hiatella barnea and Hiatella umbonata sp. nov. To understand their intraspecific variability, all the species are carefully described and figured, based on large series of specimens. Saxicava chilensis, Saxicava mollis, Saxicava lebruni and Saxicava subantarctica are considered synonyms of H. meridionalis; a lectotype for S. subantarctica is designated; and S. antarctica and S. frigida are regarded as nomina dubia. This study suggests that worldwide living hiatellids might have originated from South American species and that reduction/loss of hinge teeth during ontogeny and life on hard substrates or on/inside other invertebrates would represent derived traits within the genus Hiatella. |
author2 |
Agencia Nacional de Promoción de la Investigación, el Desarrollo Tecnológico y la Innovación |
format |
Article in Journal/Newspaper |
author |
Zelaya, Diego G Güller, Marina |
author_facet |
Zelaya, Diego G Güller, Marina |
author_sort |
Zelaya, Diego G |
title |
Decrypting the feared genus Hiatella (Bivalvia): South American species |
title_short |
Decrypting the feared genus Hiatella (Bivalvia): South American species |
title_full |
Decrypting the feared genus Hiatella (Bivalvia): South American species |
title_fullStr |
Decrypting the feared genus Hiatella (Bivalvia): South American species |
title_full_unstemmed |
Decrypting the feared genus Hiatella (Bivalvia): South American species |
title_sort |
decrypting the feared genus hiatella (bivalvia): south american species |
publisher |
Oxford University Press (OUP) |
publishDate |
2023 |
url |
http://dx.doi.org/10.1093/zoolinnean/zlad064 https://academic.oup.com/zoolinnean/advance-article-pdf/doi/10.1093/zoolinnean/zlad064/52044378/zlad064.pdf |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Zoological Journal of the Linnean Society ISSN 0024-4082 1096-3642 |
op_rights |
https://academic.oup.com/pages/standard-publication-reuse-rights |
op_doi |
https://doi.org/10.1093/zoolinnean/zlad064 |
container_title |
Zoological Journal of the Linnean Society |
_version_ |
1782341682067406848 |