Brachyuran crabs (Crustacea, Decapoda) from the remote oceanic Archipelago Trindade and Martin Vaz, South Atlantic Ocean
Forty species of shore and shallow water brachyuran crabs are reported from the remote oceanic Archipelago Trindade and Martin Vaz (TMV), 11 of which were previously known from Trindade Island, 28 are recorded from the Archipelago for the first time, and one is a new species, Epialtus parvulus sp. n...
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Magnolia Press
2022
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Online Access: | https://archimer.ifremer.fr/doc/00774/88643/94335.pdf https://doi.org/10.11646/zootaxa.5146.1.1 https://archimer.ifremer.fr/doc/00774/88643/ |
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ftarchimer:oai:archimer.ifremer.fr:88643 2023-05-15T18:21:19+02:00 Brachyuran crabs (Crustacea, Decapoda) from the remote oceanic Archipelago Trindade and Martin Vaz, South Atlantic Ocean Tavares, Marcos Braga De Mendonça, Joel 2022-06 application/pdf https://archimer.ifremer.fr/doc/00774/88643/94335.pdf https://doi.org/10.11646/zootaxa.5146.1.1 https://archimer.ifremer.fr/doc/00774/88643/ eng eng Magnolia Press https://archimer.ifremer.fr/doc/00774/88643/94335.pdf doi:10.11646/zootaxa.5146.1.1 https://archimer.ifremer.fr/doc/00774/88643/ info:eu-repo/semantics/openAccess restricted use Zootaxa (1175-5334) (Magnolia Press), 2022-06 , Vol. 5146 , N. 1 , P. 1-129 Crustacea São Pedro and São Paulo Archipelago Oceanic islands Ascension Fernando de Noronha Rocas Atoll Saint Helena text Publication info:eu-repo/semantics/article 2022 ftarchimer https://doi.org/10.11646/zootaxa.5146.1.1 2022-06-14T22:50:14Z Forty species of shore and shallow water brachyuran crabs are reported from the remote oceanic Archipelago Trindade and Martin Vaz (TMV), 11 of which were previously known from Trindade Island, 28 are recorded from the Archipelago for the first time, and one is a new species, Epialtus parvulus sp. nov. This brings the total known shore and shallow water decapod fauna of TMV to 99 species. The opportunity is taken here to elaborate on the taxonomy of the species reported from TMV. One new genus, Mecataleptodius, is recognized for two species, Cancer parvulus Fabricius, 1793, its type species, and Cataleptodius olsoni Manning & Chace, 1990, endemic to Ascension Island. The following seven nominal species are synonymized: Acanthonyx dissimulatus Coelho in Coelho & Torres, 1993; A. scutiformis (Dana, 1851a); Dromia gouveai Melo & Campos Junior, 1999; Epialtus portoricensis Rathbun, 1923; Ranilia guinotae Melo & Campos Junior, 1994; R. saldanhai H. Rodrigues da Costa, 1970; and Omalacantha garthi (Lemos de Castro, 1953). TMV is a subset of the western Atlantic crab fauna (23 species or 57.5%), also including 8 (20%) amphi-Atlantic species, 3 (7.5%) amphi-American, 3 (7.5%) endemic, 2 (5%) cosmopolitan, 1 (2.5%) known from both sides of the Atlantic and the Indo-West Pacific. The crab fauna of TMV, Ascension (AS) and Saint Helena (SH) are compared with one another as well as with that of the oceanic islands Fernando de Noronha (FN) and the Rocas Atoll (RA) by means of nonmetric multidimensional scaling (NMDS) applied to a dissimilarity matrix generated by Jaccard’s coefficient. TMV-FN-RA and AS-SH clustered into two distinct groups according to the composition of their crab fauna. The NMDS analysis ranked the species that cause segregation of the crab faunal assemblages among TMV, AS, and SH, while revealing a gradient in species composition between the two groups of islands (TMV-FN-RA and AS-SH) formed by the amphi-Atlantic species. Island isolation, age and size alone do not explain the existing ... Article in Journal/Newspaper South Atlantic Ocean Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Pacific Rocas ENVELOPE(-56.948,-56.948,-63.398,-63.398) Zootaxa 5146 1 1 129 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Crustacea São Pedro and São Paulo Archipelago Oceanic islands Ascension Fernando de Noronha Rocas Atoll Saint Helena |
spellingShingle |
Crustacea São Pedro and São Paulo Archipelago Oceanic islands Ascension Fernando de Noronha Rocas Atoll Saint Helena Tavares, Marcos Braga De Mendonça, Joel Brachyuran crabs (Crustacea, Decapoda) from the remote oceanic Archipelago Trindade and Martin Vaz, South Atlantic Ocean |
topic_facet |
Crustacea São Pedro and São Paulo Archipelago Oceanic islands Ascension Fernando de Noronha Rocas Atoll Saint Helena |
description |
Forty species of shore and shallow water brachyuran crabs are reported from the remote oceanic Archipelago Trindade and Martin Vaz (TMV), 11 of which were previously known from Trindade Island, 28 are recorded from the Archipelago for the first time, and one is a new species, Epialtus parvulus sp. nov. This brings the total known shore and shallow water decapod fauna of TMV to 99 species. The opportunity is taken here to elaborate on the taxonomy of the species reported from TMV. One new genus, Mecataleptodius, is recognized for two species, Cancer parvulus Fabricius, 1793, its type species, and Cataleptodius olsoni Manning & Chace, 1990, endemic to Ascension Island. The following seven nominal species are synonymized: Acanthonyx dissimulatus Coelho in Coelho & Torres, 1993; A. scutiformis (Dana, 1851a); Dromia gouveai Melo & Campos Junior, 1999; Epialtus portoricensis Rathbun, 1923; Ranilia guinotae Melo & Campos Junior, 1994; R. saldanhai H. Rodrigues da Costa, 1970; and Omalacantha garthi (Lemos de Castro, 1953). TMV is a subset of the western Atlantic crab fauna (23 species or 57.5%), also including 8 (20%) amphi-Atlantic species, 3 (7.5%) amphi-American, 3 (7.5%) endemic, 2 (5%) cosmopolitan, 1 (2.5%) known from both sides of the Atlantic and the Indo-West Pacific. The crab fauna of TMV, Ascension (AS) and Saint Helena (SH) are compared with one another as well as with that of the oceanic islands Fernando de Noronha (FN) and the Rocas Atoll (RA) by means of nonmetric multidimensional scaling (NMDS) applied to a dissimilarity matrix generated by Jaccard’s coefficient. TMV-FN-RA and AS-SH clustered into two distinct groups according to the composition of their crab fauna. The NMDS analysis ranked the species that cause segregation of the crab faunal assemblages among TMV, AS, and SH, while revealing a gradient in species composition between the two groups of islands (TMV-FN-RA and AS-SH) formed by the amphi-Atlantic species. Island isolation, age and size alone do not explain the existing ... |
format |
Article in Journal/Newspaper |
author |
Tavares, Marcos Braga De Mendonça, Joel |
author_facet |
Tavares, Marcos Braga De Mendonça, Joel |
author_sort |
Tavares, Marcos |
title |
Brachyuran crabs (Crustacea, Decapoda) from the remote oceanic Archipelago Trindade and Martin Vaz, South Atlantic Ocean |
title_short |
Brachyuran crabs (Crustacea, Decapoda) from the remote oceanic Archipelago Trindade and Martin Vaz, South Atlantic Ocean |
title_full |
Brachyuran crabs (Crustacea, Decapoda) from the remote oceanic Archipelago Trindade and Martin Vaz, South Atlantic Ocean |
title_fullStr |
Brachyuran crabs (Crustacea, Decapoda) from the remote oceanic Archipelago Trindade and Martin Vaz, South Atlantic Ocean |
title_full_unstemmed |
Brachyuran crabs (Crustacea, Decapoda) from the remote oceanic Archipelago Trindade and Martin Vaz, South Atlantic Ocean |
title_sort |
brachyuran crabs (crustacea, decapoda) from the remote oceanic archipelago trindade and martin vaz, south atlantic ocean |
publisher |
Magnolia Press |
publishDate |
2022 |
url |
https://archimer.ifremer.fr/doc/00774/88643/94335.pdf https://doi.org/10.11646/zootaxa.5146.1.1 https://archimer.ifremer.fr/doc/00774/88643/ |
long_lat |
ENVELOPE(-56.948,-56.948,-63.398,-63.398) |
geographic |
Pacific Rocas |
geographic_facet |
Pacific Rocas |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_source |
Zootaxa (1175-5334) (Magnolia Press), 2022-06 , Vol. 5146 , N. 1 , P. 1-129 |
op_relation |
https://archimer.ifremer.fr/doc/00774/88643/94335.pdf doi:10.11646/zootaxa.5146.1.1 https://archimer.ifremer.fr/doc/00774/88643/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.11646/zootaxa.5146.1.1 |
container_title |
Zootaxa |
container_volume |
5146 |
container_issue |
1 |
container_start_page |
1 |
op_container_end_page |
129 |
_version_ |
1766200522271883264 |