Minitiron Just 2022, gen. nov.
Minitiron gen. nov. (Fig. 1, 43 c, d) Diagnosis. Tironin Synopiidae without mandible palp. Cephalon in lateral view forming an even curve terminating in a downward pointing short, acute rostrum. Interantennal head lobes triangular, pointed or blunt. Massive squarely bundled mouthparts as deep below...
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ftzenodo:oai:zenodo.org:6572165 2023-05-15T17:45:46+02:00 Minitiron Just 2022, gen. nov. Just, Jean 2022-05-23 https://zenodo.org/record/6572165 https://doi.org/10.5281/zenodo.6572165 unknown info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03BF0417FF9CFF5CFF1A8FA5E555FB64 doi:10.11646/zootaxa.5139.1.1 http://zenodo.org/record/6572023 http://publication.plazi.org/id/FF867C6FFFD1FF11FF8D8F32E74AFFA1 doi:10.5281/zenodo.6572025 doi:10.5281/zenodo.6572127 doi:10.5281/zenodo.6572147 http://zoobank.org/145CB6F5-2EA8-40B0-9CCA-3E942AA4A5B9 doi:10.5281/zenodo.6572164 https://zenodo.org/communities/biosyslit https://zenodo.org/record/6572165 https://doi.org/10.5281/zenodo.6572165 oai:zenodo.org:6572165 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Tirons of the world: a review of ' tironid' amphipods, description of new genera and species, and establishment of a new subfamily Tironinae Stebbing, 1906 stat. nov. (Crustacea, Synopiidae), pp. 1-89 in Zootaxa 5139(1) 78 Biodiversity Taxonomy Animalia Arthropoda Malacostraca Amphipoda Synopiidae Minitiron info:eu-repo/semantics/other publication-taxonomictreatment 2022 ftzenodo https://doi.org/10.5281/zenodo.657216510.11646/zootaxa.5139.1.110.5281/zenodo.657202510.5281/zenodo.657212710.5281/zenodo.657214710.5281/zenodo.6572164 2023-03-10T19:27:17Z Minitiron gen. nov. (Fig. 1, 43 c, d) Diagnosis. Tironin Synopiidae without mandible palp. Cephalon in lateral view forming an even curve terminating in a downward pointing short, acute rostrum. Interantennal head lobes triangular, pointed or blunt. Massive squarely bundled mouthparts as deep below head as depth of head. Maxilla 1 outer plate apex narrow, with amassed group of 7–9 distally curved, unequally long spine-setae (Fig. 43 d). Coxal plates 1 and 2 of subequal length, plate 3 the largest, posterior margin tapering from middle to blunt apex, plate 4 the shortest, nearly rectangular; coxal plates 5 and 6 posterolobate, together wider than plates 1–4, plate 7 short, much wider than deep. Gnathopod 1 basis strongly forward curved (Fig. 43 c), carpus about 3/4 length of basis. Pereopods 3–7 propodus short, with stubby dactylus / unguis. Urosomites 1 and 2, or all 3, with posterior dorsal spine. Uropod 3 outer ramus of single article. Note regarding eyes. In the Australian material the ocelli of both main and accessory eyes are retracted and faded to become almost invisible, but the circumference of the eye and accessory eye and a central globulose mass on each are often distinctive. This may also be the case in the two Japanese species (Hirayama 1988) where accessory eyes have not been noted. Eyes and accessory eyes (cf. Minitiron bellairsi, Fig. 1) are likely to be present in all Minitiron species. Etymology. These species generally are the smallest of the tironins, hence the prefix mini- before the group name. Type species. Minitiron orpheus sp. nov. —Here designated. Component taxa. Minitiron bellairsi (Just, 1981) comb. nov.; M. caecus (Ledoyer, 1979) comb. nov.; M. galeatus (Hirayama, 1988) comb. nov.; M. orpheus sp. nov.; M. ovatibasis (Hirayama, 1988) comb. nov.; M. thompsoni (Walker, 1904) sp. indet.; M. sp. comb. nov. (Ledoyer 1979, as Metatiron brevidactylus (Pillai, 1957)). Distribution. Northwest Atlantic (Barbados), Gulf of Mexico (SW Florida), Caribbean Sea (Belize, Venezuela), Japan, Indian ... Other/Unknown Material Northwest Atlantic Zenodo Indian |
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collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Arthropoda Malacostraca Amphipoda Synopiidae Minitiron |
spellingShingle |
Biodiversity Taxonomy Animalia Arthropoda Malacostraca Amphipoda Synopiidae Minitiron Just, Jean Minitiron Just 2022, gen. nov. |
topic_facet |
Biodiversity Taxonomy Animalia Arthropoda Malacostraca Amphipoda Synopiidae Minitiron |
description |
Minitiron gen. nov. (Fig. 1, 43 c, d) Diagnosis. Tironin Synopiidae without mandible palp. Cephalon in lateral view forming an even curve terminating in a downward pointing short, acute rostrum. Interantennal head lobes triangular, pointed or blunt. Massive squarely bundled mouthparts as deep below head as depth of head. Maxilla 1 outer plate apex narrow, with amassed group of 7–9 distally curved, unequally long spine-setae (Fig. 43 d). Coxal plates 1 and 2 of subequal length, plate 3 the largest, posterior margin tapering from middle to blunt apex, plate 4 the shortest, nearly rectangular; coxal plates 5 and 6 posterolobate, together wider than plates 1–4, plate 7 short, much wider than deep. Gnathopod 1 basis strongly forward curved (Fig. 43 c), carpus about 3/4 length of basis. Pereopods 3–7 propodus short, with stubby dactylus / unguis. Urosomites 1 and 2, or all 3, with posterior dorsal spine. Uropod 3 outer ramus of single article. Note regarding eyes. In the Australian material the ocelli of both main and accessory eyes are retracted and faded to become almost invisible, but the circumference of the eye and accessory eye and a central globulose mass on each are often distinctive. This may also be the case in the two Japanese species (Hirayama 1988) where accessory eyes have not been noted. Eyes and accessory eyes (cf. Minitiron bellairsi, Fig. 1) are likely to be present in all Minitiron species. Etymology. These species generally are the smallest of the tironins, hence the prefix mini- before the group name. Type species. Minitiron orpheus sp. nov. —Here designated. Component taxa. Minitiron bellairsi (Just, 1981) comb. nov.; M. caecus (Ledoyer, 1979) comb. nov.; M. galeatus (Hirayama, 1988) comb. nov.; M. orpheus sp. nov.; M. ovatibasis (Hirayama, 1988) comb. nov.; M. thompsoni (Walker, 1904) sp. indet.; M. sp. comb. nov. (Ledoyer 1979, as Metatiron brevidactylus (Pillai, 1957)). Distribution. Northwest Atlantic (Barbados), Gulf of Mexico (SW Florida), Caribbean Sea (Belize, Venezuela), Japan, Indian ... |
format |
Other/Unknown Material |
author |
Just, Jean |
author_facet |
Just, Jean |
author_sort |
Just, Jean |
title |
Minitiron Just 2022, gen. nov. |
title_short |
Minitiron Just 2022, gen. nov. |
title_full |
Minitiron Just 2022, gen. nov. |
title_fullStr |
Minitiron Just 2022, gen. nov. |
title_full_unstemmed |
Minitiron Just 2022, gen. nov. |
title_sort |
minitiron just 2022, gen. nov. |
publishDate |
2022 |
url |
https://zenodo.org/record/6572165 https://doi.org/10.5281/zenodo.6572165 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Tirons of the world: a review of ' tironid' amphipods, description of new genera and species, and establishment of a new subfamily Tironinae Stebbing, 1906 stat. nov. (Crustacea, Synopiidae), pp. 1-89 in Zootaxa 5139(1) 78 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03BF0417FF9CFF5CFF1A8FA5E555FB64 doi:10.11646/zootaxa.5139.1.1 http://zenodo.org/record/6572023 http://publication.plazi.org/id/FF867C6FFFD1FF11FF8D8F32E74AFFA1 doi:10.5281/zenodo.6572025 doi:10.5281/zenodo.6572127 doi:10.5281/zenodo.6572147 http://zoobank.org/145CB6F5-2EA8-40B0-9CCA-3E942AA4A5B9 doi:10.5281/zenodo.6572164 https://zenodo.org/communities/biosyslit https://zenodo.org/record/6572165 https://doi.org/10.5281/zenodo.6572165 oai:zenodo.org:6572165 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.657216510.11646/zootaxa.5139.1.110.5281/zenodo.657202510.5281/zenodo.657212710.5281/zenodo.657214710.5281/zenodo.6572164 |
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1766149017234833408 |