• Animal Systematics, Evolution and Diversity
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• 제37권4호
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• pp.349-353
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• 2021

Scolelepis (Parascolelepis) papillosa (Okuda, 1937), originally described from a single incomplete individual from Jeju Island in Korea, was collected from the intertidal sandflats of Soan Island (Jeollanam-do province) in Korea. The examined specimens of S. (P.) papillosa agree well with the original description in having the papillae on the basal sheath of the palps, presence of occipital antenna, absence of notochaetae in chaetiger 1, branchiae completely fused with notopodial postchaetal lamellae at the anterior chaetigers, and neuropodial hooded hooks appearing from chaetiger 16. In this study, the sequences of partial mitochondrial cytochrome c oxidase subunit I (COI), 16S ribosomal DNA (16S rDNA), and the nuclear 18S ribosomal DNA (18S rDNA) of the species were determined. We also provide the detailed description and illustrations on this species based on the complete specimens newly collected in this study.

• Animal Systematics, Evolution and Diversity
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• 제35권3호
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• pp.105-113
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• 2019

Feather mites comprise two superfamilies(Analgoidea and Pterolichoidea) and are highly specialized ectosymbionts of birds. To date, this group contains more than 2,500 species worldwide. Fifty-five feather mite species have been reported in Korea, and only one species of genus Alloptes has been recorded from black-tailed godwit Limosa limosa. Three new records of feather mites from the L. limosa in Korea are added in this study: Avenzoaria punctata Gaud, 1972, Bregetovia limosae (Buchholz, 1869), and Montchadskiana buchholzi (Canestrini, 1878). The genus Bregetovia Dubinin, 1951 is also new report for this country. In this paper, we provide the morphological descriptions and illustrations based on the present specimens. Additionally, we determined partial sequences of the mitochondrial cytochrome c oxidase subunit I(COI) from three feather mites as DNA barcodes.

• Animal Systematics, Evolution and Diversity
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• 제35권3호
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• pp.151-155
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• 2019

Jesogammarus (Jesogammarus) hinumensis Morino, 1993 was discovered firstly from a brackish water region in Jeju Island, Korea. To identification of the specimens we conducted both of morphological and molecular analyses. This species is characterized by having large eyes and a robust seta on the mandibular palp article 1. The morphology of this Korean specimens was well matched with the original description without variation. The mitochondrial cytochrome c oxidase subunit I(COI) sequences of the present specimens were also completely identical to the sequences of J. (J.) hinumensis collected from the type locality of the species. Thus, we concluded that the Jesogammarus species from Jeju Island is J.(J.) hinumensis, based on both morphological and molecular data.

• Animal Systematics, Evolution and Diversity
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• 제35권2호
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• pp.63-72
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• 2019

Four feather mites, Alloptes(Apodalloptes) orthogramme Gaud and Mouchet, 1957, Alloptes(Conuralloptes) limosae Dubinin, 1951, Alloptes (C.) procerus Gaud, 1972 and Alloptes (Sternalloptes) fauri Gaud, 1957 are reported for the first time in South Korea. These specimens were collected from four charadriiform bird species: Actitis hypoleucos, Larus crassirostris, Limosa limosa, and Numenius phaeopus. The family Alloptidae Gaud, 1957 and a genus Alloptes Canestrini, 1879 are newly added to the invertebrate fauna of South Korea as well. Here, we provide the morphological description and illustrations based on the present specimens. Additionally, partial sequences of the mitochondrial cytochrome c oxidase subunit I(COI) were newly-generated for using as DNA barcodes.

• Animal Systematics, Evolution and Diversity
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• 제36권4호
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• pp.396-399
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• 2020

The Antarctic freshwater copepod, Boeckella poppei (Mrazek, 1901), has the widest range of distribution extending from southern South America to Antarctic continent, among all Boeckella species. Boeckella poppei is the only freshwater copepod known to be inhabiting the Antarctic continent. In present study, we analyzed the DNA barcodes of the mitochondrial cytochrome c oxidase subunit I (COI) gene of B. poppei from King George Island, Antarctica. The intraspecific genetic distances varied from 0% to 13% and interspecific genetic distances ranged from 11% to 14%. The overlap of DNA barcode gap suggests careful threshold-based delimitation of species boundaries.

• Animal Systematics, Evolution and Diversity
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• 제37권1호
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• pp.1-8
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• 2021

A eunicid polychaete, Marphysa victori Lavesque, Daffe, Bonifácio & Hutchings, 2017 is described for the first time from the intertidal zones of the Korean coasts. It is characterized by having three types of pectinate chaetae (INS, isodont-narrow-slender; AWS, anodont-wide-slender; and AWT, anodont-wide-thick), appearance of pectinate chaetae from chaetiger 2, the chaetae consisted of pectinate and compound spinigers, and pygidium with one pair of pygidial cirri. In genetic analysis based on cytochrome c oxidase subunit I (COI), intra-specific genetic distance between the specimens of M. victori from its type locality, France and Korea are in the range of 0.000-0.013. This paper includes the morphological description and photographs of M. victori new to Korean fauna, with partial sequences of the mitochondrial COI as DNA barcode data on this species.

• Animal Systematics, Evolution and Diversity
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• 제38권3호
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• pp.144-147
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• 2022

The polychaete Scolelepis (Scolelepis) sagittaria was originally described from Japanese waters and subsequently reported from Korean waters. In this study, we determined for the first time the mitochondrial cytochrome c oxidase subunit I (COI), 16S ribosomal DNA (16S rDNA), and nuclear 18S ribosomal DNA (18S rDNA) sequences of Korean specimens of S. (S.) sagittaria. We also assessed intraspecific variation in the shape of the prostomium of this species based on an examination of 247 individuals. All materials were collected from intertidal sandy beaches of the Korea Strait. The molecular data and morphological observations reported herein will contribute to gaining a better understanding of the taxonomic relationships among members of the genus Scolelepis.

• Animal Systematics, Evolution and Diversity
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• 제38권3호
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• pp.130-139
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• 2022

Four feather mites, Dichobrephosceles actitidis(Canestrini, 1878)(Alloptidae), Limosilichus limosae Vasyukova and Mironov, 1986, L. numeni Vasyukova and Mironov, 1986 (Syringobiidae), and Pomeranzevia numenii (Canestrini, 1878) (Avenzoariidae), have been reported in Korea for the first time. Specimens of D. actitidis and L. limosae were obtained from the common sandpiper, Actitis hypoleucos (Linnaeus, 1758), and the black-tailed godwit, Limosa limosa (Linnaeus, 1758), respectively, while L. numeni and P. numenii were collected from the Eurasian whimbrel, Numenius phaeopus (Linnaeus, 1766). The genera Dichobrephosceles Peterson and Atyeo, 1968, Limosilichus Vasyukova and Mironov, 1986, and Pomeranzevia Dubinin, 1951 are also new records for the fauna of Korea. This paper provides morphological descriptions, illustrations, and partial sequences of mitochondrial cytochrome c oxidase subunit I(COI) for all the recorded species based on the specimens collected in Korea.

• 한국수산과학회지
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• 제55권5호
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• pp.736-741
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• 2022

A single specimen (91.5 cm standard length) of the salmonid species, Oncorhynchus tshawytscha (Walbaum, 1792) was collected on April 19, 2022 in Sokcho-si, Gangwon-do, Korea. O. tshawytscha has the following morphological characteristics: base of lower jaw teeth is black, black spots are scattered on the dorsal section of body, and the edge of caudal fin is black. Although the species is morphologically similar to Oncorhynchus kisutch, O. tshawytscha differs from it in having black spots on the caudal fin. Molecular analysis results based on mitochondrial cytochrome c oxidase subunit I (COI) sequences showed that our specimen perfectly matched with the COI sequences of O. tshawytscha registered at the NCBI. Therefore, we suggest the new Korean name 'Wang-yeon-eo' for O. tshawytscha.

• Journal of Species Research
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• 제11권3호
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• pp.188-193
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• 2022

Araeosoma owstoni Mortensen, 1904, a newly recorded sea urchin, was collected from the Korea Strait by trawling during a research expedition in April 2017. The specimen was damaged and was severely peeled off on the aboral side during trawling. However, a test and the surface of the oral side of the sample were well preserved, allowing us to successfully identify it. The species was distinguished by the large and flexible test, the tiny apical section, and the interambulacra width which is twice of the ambulacra. Pedicellaria tridentate and triphyllous were presents, but tetradactyle pedicellaria was absent due to severe peeling on the aboral side. Moreover, a length of 1,212 bp sequence from mitochondrial COI gene was obtained and this sequence covered the general DNA barcoding region. The mean of interspecific divergence within A. owstoni from Korea and other eight species of Araeosoma from the GenBank was 6.8%. This value indicated that our species was clearly distinguishable from the others. Thus, the first Araeosoma species occurring in South Korea is presented in this study.