• Title/Summary/Keyword: Harpacticoida

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Marine harpacticoids of genus parathalestris (Copepoda, Harpacticoida, Thalestridae) from Korea (한국산 Parathalestris속의 요각류 (요각아강, 갈고리노벌레목, Thalestridae과)의 기재)

  • 장천영;송성준
    • Animal Systematics, Evolution and Diversity
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    • v.13 no.3
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    • pp.221-231
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    • 1997
  • Marine harpacticoid copepods of the genus parathalestris, which are suspected as a chief cause of pinholes or galls of cultivated seaweeds like Undaria pinnatifida, are studied taxonomically. As a result of examining the specimens from 23 localities in Korea since 1989, the authors confirmed sic species of the genus Parathalestris including a new species, P. parviseta n. sp., and four species new to korean fauna: P. bulbiseta Lang, 1965; P. verrucosa Ito, 1970; P. pacificus Tschislenko, 1971 and P. arelata Ito, 1972. A key to these six species of parathalestris was made out, with the illustrations for them.

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Redescriptions of Two Thalestrid Copepods, Phyllothalestris sarsi Sewell, 1940 and Dactylopusia falcifera Willey, 1935(Copepoda, Harpacticoida, Thalestridae)in Korea (한국산 요각류, Phyllothalestris sarsi Sewell, 1940와 Dactylopusia falcifera Willey, 1935(요각아강, 갈고리노벌레목, Thalestridase과)의 재기재)

  • Song, Sung-Joon;Kim, Won;Chang, Cheon-Young
    • Animal Systematics, Evolution and Diversity
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    • v.17 no.2
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    • pp.229-243
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    • 2001
  • Two marine harpacticoid species, Phyllothalestris sarsi Sewell, 1940 and Dactylopusia falcifera Willey, 1935 belonging to family Thalestridae are redescribed from South Korea, on the basis of the specimens of both sexes mainly from the washings of macroalgae at littoral rocky shore or sublittoral bottom sediments during the period from 1994 to 2000. They are new to Korean fauna, and this report is the first record for them in the Pacific Ocean.

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A New Record of Microarthridion littorale (Copepoda, Harpacticoida, Tachidiidae) from Korea with Taxonomic Note on the Species

  • Kim, Jong Guk;Choi, Hyun Ki;Yoon, Seong Myeong
    • Animal Systematics, Evolution and Diversity
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    • v.32 no.3
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    • pp.207-218
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    • 2016
  • A harpacticoid copepod, Microarthridion littorale (Poppe, 1881), is newly recorded in Korea. Microarthridion species can be distinguished from each other by a combination of the number of the antennular segment, the number of the seta on the antennary exopod, and the armature of the thoracopod legs. Korean materials examined coincide well with M. littorale on these well-known characteristics. However, there are some minor differences in the ornamentations of the maxilliped and swimming legs. The specimens show additional sexual dimorphisms in the setae on enp-3 of P1 and exp-3 of P2-P4. Morphological diversity of so-called M. littorale is also discussed here with detailed features.

First record of the genus Sinamphiascus (Copepoda: Harpacticoida) from Korean waters

  • Nam, Eunjung;Lee, Wonchoel
    • Journal of Species Research
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    • v.1 no.1
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    • pp.44-55
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    • 2012
  • A harpacticoid copepod, Sinamphiascus dominatus Mu & Gee, 2000 is re-described from the sandy bottom in off Jeju Island of Korea. The genus Sinamphiascus was established with single species, S. dominatus from the Bohai Sea, China. The main diagnostic characters of the specimen from Korea are well matched with the original description, although it has minor discrepancies including the lengths and ornamentation of setae in leg 6 of both sexes, shape of the base on furcal setae and teeth number of labrum in female. However those discrepancies are regarded to the intra-specific variations. This is the first record of genus Sinamphiascus in Korean waters.

Two New Species of Genus Attheyella (Harpacticoida, Canthocamptidae) from Springs of Korea (샘에서 채집한 Attheyella 속의 하르팍티쿠스류 2신종)

  • Chang, Cheon-Young;Kim, Hoon-Soo
    • Animal Systematics, Evolution and Diversity
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    • no.nspc3
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    • pp.67-76
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    • 1992
  • Two new species belonging to the genus Attheyella of Canthocamptidae, collected from two springs each of Mt. Hambak and Mt. Halla of South Korea, are described under the name of Attheyella(Attheyella) paucisetosa and Attheyella(Mrazekiella) byblis, respectively.

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A New Species of the Peltidium quinquesetosum (Copepoda : Harpacticoida : Peltidiidae) on the Marine Macroalgae in Korea (한국산 해조류에 서식하는 갈고리노벌레류 1신종 Peltidium quinquesetosum (요각 아강: 갈고리노벌레 목: Peltidiidae 과)의 기재)

  • 송성준;윤성규
    • Animal Systematics, Evolution and Diversity
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    • v.15 no.1
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    • pp.67-74
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    • 1999
  • Peltidium quinquesetosum n. sp. belonging to the family Peltidiidae is described from algal bed on subtidal rocky bottoms of Korea. The most characteristic features of this species are found in the setal number of distal segment of leg 1 endopod and the shape of leg 5 in female, and the caudal rami fully concealed by urosome in a dorsal view.

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Brackish-water Copepods of the Family Tachidiidae (Copepoda: Harpacticoida) from South Korea

  • Chang, Cheon-Young
    • Animal Systematics, Evolution and Diversity
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    • v.24 no.2
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    • pp.229-240
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    • 2008
  • Four harpacticoid species belonging to the family Tachidiidae are reported from the coastal waters and salt marshes in South Korea: Tachidius discipes Giesbrecht, 1881, Neotachidius parvus Huys, Ohtsuka, Conroy-Dalton and Kikuchi, 2005, Microarthridion litospinatus Shen and Tai, 1973 and Geeopsis incisipes (Klie, 1913). The latter two species and genera are new to Korean fauna. The previous record of T. discipes reported by Song and Chang (1995) from Korea is affirmed by the finding of male specimens. Microarthridion litospinatus is first known outside the type locality, and redescribed herein in detail. A key to the five species and four genera of the family Tachidiidae hitherto known from South Korea is presented.

A new species of the genus Eurycletodes Sars G.O., 1909 (Copepoda: Harpacticoida: Argestidae) from South Sea of Korea

  • Bang, Hyun Woo
    • Journal of Species Research
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    • v.9 no.4
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    • pp.480-488
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    • 2020
  • The genus Eurycletodes Sars, 1909 is reported for the first time in Korea. A new species of the genus Eurycletodes was collected from Hansando Island, South Sea of Korea. So far, Eurycletodes comprises 27 species, with no previously recorded species reported in East Asia, including Korea. Eurycletodes (Oligocletodes) vadumus sp. nov. is morphologically most closely related to E. (O.) denticulatus Por, 1967, E. (O.) aculeatus Sars, 1920, and E. (O.) diva Menzel, 2011, but clearly distinguishable from the others based on the following morphological characteristics: absence of A2 exopodal seta, A1 last segment with two inner setae, P4 exp-3 proximal inner seta modified, the ratio of length and of caudal rami (1.6 times), and mandibular palp with three setae. Together with the new species, the number of valid species in this genus has risen to 28. A key to species of the genus Eurycletodes is provided.

A New Species of the Rarely Known Genus Apolethon(Copepoda, Harpacticoida, Laophontidae) from Brackish Waters of Korea

  • Lee, Ji-Min;Chang, Cheon-Young
    • Animal cells and systems
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    • v.12 no.4
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    • pp.249-259
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    • 2008
  • A new laophontid copepod species, Apolethon articulatus n. sp., is described from the estuaries and salt marshes in South Korea. Apolethon articulatus is similar to the three congeneric species currently known in sharing the character combination of the elongate first endopodal segment of leg 1 with inner seta and the expansion of second endopodal segments of legs 2-4 with decrease in the number of setae on them. However, A. articulatus differs from them by the separate exopod of female leg 5 and the armature of mandibular palp with 6 setae. Description and taxonomic accounts of the new species are presented herein with detailed illustrations and SEM micrographs. As the true identity of the rarely known genus has not been clarified yet, a revised generic diagnosis is provided with a key to the species hitherto known in the genus.