Two new species of shrimp of the Indo-West Pacific genus Hamodactylus Holthuis, 1952 (Crustacea: Decapoda: Palaemonidae)
Two new alcyonacean-associated species, <em>Hamodactylus paraqabai</em> sp. nov. from Papua New Guinea and the Great Barrier Reef and <em>H. pseudaqabai</em> sp. nov. from Indonesia and Malaysia, are described and illustrated. To evaluate the status of the new species and the...
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| Format: | Article |
| Language: | English |
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Consortium of European Natural History Museums
2016-04-01
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| Series: | European Journal of Taxonomy |
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| Online Access: | http://www.europeanjournaloftaxonomy.eu/index.php/ejt/article/view/311 |
| _version_ | 1818682108593307648 |
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| author | Ivona HORKÁ Charles H.J.M. FRANSEN Zdeněk ĎURIŠ |
| author_facet | Ivona HORKÁ Charles H.J.M. FRANSEN Zdeněk ĎURIŠ |
| author_sort | Ivona HORKÁ |
| collection | DOAJ |
| description | Two new alcyonacean-associated species, <em>Hamodactylus paraqabai</em> sp. nov. from Papua New Guinea and the Great Barrier Reef and <em>H. pseudaqabai</em> sp. nov. from Indonesia and Malaysia, are described and illustrated. To evaluate the status of the new species and their relationship within the genus <em>Hamodactylus</em> Holthuis, 1952, we combined morphology and phylogenetic analyses based on the cytochrome c oxidase subunit I (COI) mitochondrial gene. Both new species are closely related, with their mutual genetic divergence reaching 3-4%. They are further most related to <em>Hamodactylus aqabai</em> Bruce & Svoboda, 1983, originally described from the Red Sea. Both new species are distinguished from all other congeners by the presence of multiple teeth distally on the cutting edges of the fingers of the first pereiopods, and, in the case of <em>H. paraqabai</em> sp. nov., by a full reduction of the fixed finger on the second pereiopod chela. In <em>H. pseudaqabai</em> sp. nov. the finger is greatly reduced to a small but distinct stub, and the telson bears only a single pair of dorsal spines, as in <em>H. aqabai</em>. A key for the identification of all six currently known species is proposed. |
| first_indexed | 2024-12-17T10:13:36Z |
| format | Article |
| id | doaj.art-39b789251ef24d4d88105ccc72fd3d8a |
| institution | Directory Open Access Journal |
| issn | 2118-9773 |
| language | English |
| last_indexed | 2024-12-17T10:13:36Z |
| publishDate | 2016-04-01 |
| publisher | Consortium of European Natural History Museums |
| record_format | Article |
| series | European Journal of Taxonomy |
| spelling | doaj.art-39b789251ef24d4d88105ccc72fd3d8a2022-12-21T21:52:58ZengConsortium of European Natural History MuseumsEuropean Journal of Taxonomy2118-97732016-04-01018810.5852/ejt.2016.188192Two new species of shrimp of the Indo-West Pacific genus Hamodactylus Holthuis, 1952 (Crustacea: Decapoda: Palaemonidae)Ivona HORKÁ0Charles H.J.M. FRANSEN1Zdeněk ĎURIŠ2Department of Biology and Ecology, and Institute of Environmental Technologies, University of Ostrava, Chittussiho 10, CZ-71000 Ostrava and Department of Ecology, Charles University, Viničná 7, CZ-12844 PragueDepartment of Taxonomy & Systematics, Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA LeidenDepartment of Ecology, Charles University, Viničná 7, CZ-12844 PragueTwo new alcyonacean-associated species, <em>Hamodactylus paraqabai</em> sp. nov. from Papua New Guinea and the Great Barrier Reef and <em>H. pseudaqabai</em> sp. nov. from Indonesia and Malaysia, are described and illustrated. To evaluate the status of the new species and their relationship within the genus <em>Hamodactylus</em> Holthuis, 1952, we combined morphology and phylogenetic analyses based on the cytochrome c oxidase subunit I (COI) mitochondrial gene. Both new species are closely related, with their mutual genetic divergence reaching 3-4%. They are further most related to <em>Hamodactylus aqabai</em> Bruce & Svoboda, 1983, originally described from the Red Sea. Both new species are distinguished from all other congeners by the presence of multiple teeth distally on the cutting edges of the fingers of the first pereiopods, and, in the case of <em>H. paraqabai</em> sp. nov., by a full reduction of the fixed finger on the second pereiopod chela. In <em>H. pseudaqabai</em> sp. nov. the finger is greatly reduced to a small but distinct stub, and the telson bears only a single pair of dorsal spines, as in <em>H. aqabai</em>. A key for the identification of all six currently known species is proposed.http://www.europeanjournaloftaxonomy.eu/index.php/ejt/article/view/311PalaemonidaeHamodactylus paraqabai sp. nov.Hamodactylus pseudaqabai sp. nov.coral associatesidentification key |
| spellingShingle | Ivona HORKÁ Charles H.J.M. FRANSEN Zdeněk ĎURIŠ Two new species of shrimp of the Indo-West Pacific genus Hamodactylus Holthuis, 1952 (Crustacea: Decapoda: Palaemonidae) European Journal of Taxonomy Palaemonidae Hamodactylus paraqabai sp. nov. Hamodactylus pseudaqabai sp. nov. coral associates identification key |
| title | Two new species of shrimp of the Indo-West Pacific genus Hamodactylus Holthuis, 1952 (Crustacea: Decapoda: Palaemonidae) |
| title_full | Two new species of shrimp of the Indo-West Pacific genus Hamodactylus Holthuis, 1952 (Crustacea: Decapoda: Palaemonidae) |
| title_fullStr | Two new species of shrimp of the Indo-West Pacific genus Hamodactylus Holthuis, 1952 (Crustacea: Decapoda: Palaemonidae) |
| title_full_unstemmed | Two new species of shrimp of the Indo-West Pacific genus Hamodactylus Holthuis, 1952 (Crustacea: Decapoda: Palaemonidae) |
| title_short | Two new species of shrimp of the Indo-West Pacific genus Hamodactylus Holthuis, 1952 (Crustacea: Decapoda: Palaemonidae) |
| title_sort | two new species of shrimp of the indo west pacific genus hamodactylus holthuis 1952 crustacea decapoda palaemonidae |
| topic | Palaemonidae Hamodactylus paraqabai sp. nov. Hamodactylus pseudaqabai sp. nov. coral associates identification key |
| url | http://www.europeanjournaloftaxonomy.eu/index.php/ejt/article/view/311 |
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