Two new species and a further country record of the Caridean shrimp genus Periclimenaeus Borradaile, 1915 from Korea (Decapoda: Palaemonidae)
Two new species of the palaemonid genus Periclimenaeus are described and illustrated from Korea; additionally, a third species is recorded from Korea for the first time. Periclimenaeus karantina sp. nov. was obtained from ascidian hosts. The species has a denticulate dactylus on both second pereiopo...
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| Format: | Journal article |
| Language: | English |
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Academia Sinica
2021
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| _version_ | 1797077938744590336 |
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| author | Park, J-H De Grave, S |
| author_facet | Park, J-H De Grave, S |
| author_sort | Park, J-H |
| collection | OXFORD |
| description | Two new species of the palaemonid genus Periclimenaeus are described and illustrated from Korea; additionally, a third species is recorded from Korea for the first time. Periclimenaeus karantina sp. nov. was obtained from ascidian hosts. The species has a denticulate dactylus on both second pereiopods, considered to be typical for ascidian associates. It can be separated from related species by the combination of the following characters: the carpocerite overreaching the anterior margin of the scaphocerite; the distolateral tooth of the scaphocerite exceeding the anterior margin of the lamella; the dactylus of the minor chela exceeding the fixed finger; and the ambulatory dactyli furnished with a minute proximal tooth. Periclimenaeus apomonosi sp. nov. was obtained from sponge hosts, and belongs to the P. robustus species-group, on account of the developed anterior median lobe on the tergite of the first abdominal somite. It can be distinguished from related species by the combination of the presence of a supraorbital tooth; the presence of a pointed process on the inferior orbital angle; the distolateral tooth of the scaphocerite terminating level with the anterior margin of the lamella; the antennal carpocerite reaching about 0.6 of the scaphocerite; the first and second chelae with non-serrated cutting edges; the ischium and merus of the second pereiopods harbouring tubercles on the ventral margin; and the ambulatory dactyli with a distal accessory tooth and the corpus furnished with denticles, ventrally. The sponge associated species, Periclimenaeus djboutensis, relatively widespread across the Indo-Pacific, is reported for the first time from Korea in Geomundo Island. Asides from a morphological description of all three species, molecular information of two genetic markers (16S + COI) is provided to aid in future phylogenetic reconstructions of the genus.
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| first_indexed | 2024-03-07T00:25:14Z |
| format | Journal article |
| id | oxford-uuid:7deb9515-b40a-49e3-8067-338cd9a41604 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:25:14Z |
| publishDate | 2021 |
| publisher | Academia Sinica |
| record_format | dspace |
| spelling | oxford-uuid:7deb9515-b40a-49e3-8067-338cd9a416042022-03-26T21:06:45ZTwo new species and a further country record of the Caridean shrimp genus Periclimenaeus Borradaile, 1915 from Korea (Decapoda: Palaemonidae)Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7deb9515-b40a-49e3-8067-338cd9a41604EnglishSymplectic ElementsAcademia Sinica2021Park, J-HDe Grave, STwo new species of the palaemonid genus Periclimenaeus are described and illustrated from Korea; additionally, a third species is recorded from Korea for the first time. Periclimenaeus karantina sp. nov. was obtained from ascidian hosts. The species has a denticulate dactylus on both second pereiopods, considered to be typical for ascidian associates. It can be separated from related species by the combination of the following characters: the carpocerite overreaching the anterior margin of the scaphocerite; the distolateral tooth of the scaphocerite exceeding the anterior margin of the lamella; the dactylus of the minor chela exceeding the fixed finger; and the ambulatory dactyli furnished with a minute proximal tooth. Periclimenaeus apomonosi sp. nov. was obtained from sponge hosts, and belongs to the P. robustus species-group, on account of the developed anterior median lobe on the tergite of the first abdominal somite. It can be distinguished from related species by the combination of the presence of a supraorbital tooth; the presence of a pointed process on the inferior orbital angle; the distolateral tooth of the scaphocerite terminating level with the anterior margin of the lamella; the antennal carpocerite reaching about 0.6 of the scaphocerite; the first and second chelae with non-serrated cutting edges; the ischium and merus of the second pereiopods harbouring tubercles on the ventral margin; and the ambulatory dactyli with a distal accessory tooth and the corpus furnished with denticles, ventrally. The sponge associated species, Periclimenaeus djboutensis, relatively widespread across the Indo-Pacific, is reported for the first time from Korea in Geomundo Island. Asides from a morphological description of all three species, molecular information of two genetic markers (16S + COI) is provided to aid in future phylogenetic reconstructions of the genus. |
| spellingShingle | Park, J-H De Grave, S Two new species and a further country record of the Caridean shrimp genus Periclimenaeus Borradaile, 1915 from Korea (Decapoda: Palaemonidae) |
| title | Two new species and a further country record of the Caridean shrimp genus Periclimenaeus Borradaile, 1915 from Korea (Decapoda: Palaemonidae) |
| title_full | Two new species and a further country record of the Caridean shrimp genus Periclimenaeus Borradaile, 1915 from Korea (Decapoda: Palaemonidae) |
| title_fullStr | Two new species and a further country record of the Caridean shrimp genus Periclimenaeus Borradaile, 1915 from Korea (Decapoda: Palaemonidae) |
| title_full_unstemmed | Two new species and a further country record of the Caridean shrimp genus Periclimenaeus Borradaile, 1915 from Korea (Decapoda: Palaemonidae) |
| title_short | Two new species and a further country record of the Caridean shrimp genus Periclimenaeus Borradaile, 1915 from Korea (Decapoda: Palaemonidae) |
| title_sort | two new species and a further country record of the caridean shrimp genus periclimenaeus borradaile 1915 from korea decapoda palaemonidae |
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