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Agaue laeviunguis (Acari, Halacaridae), a New Species of Halacarid Mites from Korea
장천영,Tapas Chatterjee 한국통합생물학회 2006 Animal cells and systems Vol.10 No.4
A new halacarid species, Agaue laeviunguis n.sp. from Youngil Bay, Pohang City, South Korea is described.In sharing the character combination of three dorsal setaeon PE, lacking dorsal seta anterior to insertion of leg IV, threeventral setae on PE, female PGS adjacent to GF, telofemoralamella on all telofemora, presence of accessory process onall lateral claws, long gnathosoma, and a smooth seta on P2in both sexes, this species resembles A. subglabra Bartschfrom Australia. The species, however, is clearly distinguishedfrom A. subglabra by its larger body, claws of tarsi II-IV withoutventral pecten, and much more PGS in female. Descriptionof proto- and deutonymphs are also provided.
장천영 한국동물분류학회 2012 Animal Systematics, Evolution and Diversity Vol.28 No.2
A new monstrilloid species belonging to the genus Cymbasoma is described as a preliminary result from nocturnal surveys using a light trap on the east and south coasts of South Korea. Monstrilloid copepods are first recorded in South Korea. Cymbasoma striifrons n. sp. resembles C. striatum (Isaac, 1974) and C. tumorifrons Isaac, 1975 in sharing the character combination of transverse striations on forehead, somewhat small body (generally slightly less or longer than 1 mm), single lobed leg 5 bearing a short medial seta in female, and smooth lateral margin of anal somite without notch and wrinkles. However, C. striifrons n. sp. differs from C. striatum by relatively short and swollen cephalothorax, and rather strongly wrinkled genital somite. Cymbasoma striifrons n. sp. is also distinguished from C. tumorifrons in lacking a rounded protuberance on anterior margin of ventral surface and by relatively short cephalothorax and the number of ventral nipple-like processes on cephalothorax. Herein the new species is described and illustrated, with some comments on the morphological comparison with its allied species.
장천영 한국동물분류학회 2012 Animal Systematics, Evolution and Diversity Vol.28 No.1
A cyclopoid species from several salt marshes and estuaries on the west coast of South Korea were identified as Halicyclops continentalis Ueda and Nagai, 2009, recently described from Ariake Bay at northwestern Kyushu,Japan. Detailed examination on the Korean specimens justifies Ueda and Nagai’s proposition that the H. sinensis sensu Tai and Chen, 1979 formerly known from the Chinese coast of the Yellow Sea should be identical to H. continentalis. Furthermore, this report reinforces their assumption on the geographical distribution of H. continentalis, that is, the Ariake Bay population is a continental relict of the East Asia continent. Herein,a redescription of the species is provided on the basis of the Korean specimens, with a comment on the morphological comparison among three populations around the Yellow Sea.
First record of the genus Cyclopinoides (Copepoda, Cyclopoida, Cyclopinidae) from the Pacific
장천영 한국통합생물학회 2011 Animal cells and systems Vol.15 No.1
A new species belonging to the genus Cyclopinoides Lindberg, 1953 (Cyclopinidae) is described from three beaches in Korea and Japan, as the first record of the genus from the Pacific. Among five species currently recognized in the genus, the new species resembles C. schulzi Herbst, 1964 from the Red Sea in sharing the character combination of 20-segmented antennule and stumpy caudal rami. However, C. orientalis n. sp. differs from it by relatively longer caudal rami (2.52.8 times as long as wide in female and about 1.61.8 times in male, while less than 2 times in female and about 1.3 times in male of C. schulzi), and by the transformation of an outer distal spine to a slender seta on the distal exopodal segment of leg 4. Moreover, C. orientalis n. sp. is discernible from C. schulzi in having a pyriform copulatory tube (against elongated tubular style in C. schulzi). A key to the species hitherto known in the genus is provided.
Three Miraciid Copepods (Harpacticoida, Miraciidae) from South Korea
장천영 한국동물분류학회 2009 Animal Systematics, Evolution and Diversity Vol.25 No.3
Three harpacticoid species of the family Miraciidae are reported from neritic and brackish waters in Korea: Amphiascus kawamurai Ueda and Nagai, 2005, Schizopera clandestina (Klie, 1924) and Schizopera neglecta Akatova, 1935. Amphiascus kawamurai is newly recorded from Korea. Redescription is provided with the systematic accounts and illustrations of them. Three harpacticoid species of the family Miraciidae are reported from neritic and brackish waters in Korea: Amphiascus kawamurai Ueda and Nagai, 2005, Schizopera clandestina (Klie, 1924) and Schizopera neglecta Akatova, 1935. Amphiascus kawamurai is newly recorded from Korea. Redescription is provided with the systematic accounts and illustrations of them.
장천영 한국통합생물학회 2007 Animal cells and systems Vol.11 No.2
A new species of Nitokra and Ameira parvula(Claus) belonging to the family Ameiridae are recorded frombrackish waters in South Korea. Nitokra koreanus n. sp.most resembles N. spinipes and N. pietschmanni, however,it is characteristic in having the character combination ofellipsoidal P5 exopod and very short P1 enp 1. Ameiraparvula is reported for the first time from the NorthwesternPacific. Description of the new species and the taxonomicaccounts of both species are presented.
Brackish-water Copepods of the Family Tachidiidae (Copepoda: Harpacticoida) from South Korea
장천영 한국동물분류학회 2008 Animal Systematics, Evolution and Diversity Vol.24 No.2
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. 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.
장천영 한국동물분류학회 2008 Animal Systematics, Evolution and Diversity Vol.24 No.2
Desmotimmia mirabilis (Timm), a rarely known desmoscolecid nematode species, was discovered for the first time from the Yellow Sea off southwestern coast of Korea. This is the third record of the species, and the first report from the northwestern Pacific region. Redescription is prepared on the basis of a male specimen from South Korea.