• Title/Summary/Keyword: One new species

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Four New Records of Dendronephthya Species (Octocorallia: Alcyonacea: Nephtheidae) from Korea

  • Hwang, Sung-Jin;Song, Jun-Im
    • Animal Systematics, Evolution and Diversity
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    • v.29 no.2
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    • pp.160-174
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    • 2013
  • Soft corals were collected from the subtidal zone in the coastal regions of Jejudo Island between 1975 and 2010. By the taxonomic work on them, three species in the subgenus Dendronephthya (Dendronephthya) and one species in the subgenus Dendronephthya (Roxasia) of family Nephtheidae were newly added to Korean fauna: Dendronephthya (Dendronephthya) aurea Utinomi, 1952, Dendronephthya (D.) koellikeri K$\ddot{u}$kenthal, 1905, Dendronephthya (D.) mucronata (P$\ddot{u}$tter, 1900), and Dendronephthya (Roxasia) decussatospinosa Utinomi, 1952. These species are mainly distributed on the rocky substratum at the southern coast from 10 and 32 m. As a result of this study thirteen species in the genus Dendronephthya have been reported from Korean waters until now.

Four new records of family Diphyidae (Hydrozoa: Siphonophorae) in Korean waters

  • Park, Nayeon;Lee, Wonchoel
    • Journal of Species Research
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    • v.9 no.2
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    • pp.131-146
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    • 2020
  • Siphonophores are unique, gelatinous zooplankton, which many individuals gather and live like one "Superorganism". The role of individuals in the colony differs greatly depending on their morphological difference, making them more unique. In this study, we report four species belonging to Diphyidae Quoy and Gaimard, 1827 sampled from the South Sea and off Jeju Island, Korea. Two Chelophyes Totton, 1932 (C. appendiculata (Eschscholtz, 1829); C. contorta (Lens and van Riemsdijk, 1908)) and two Eudoxoides Huxley, 1859 (E. mitra (Huxley, 1859); E. spiralis (Bigelow, 1911)) species are described with multi-focus stacked digital images. Our findings update the confirmed order Siphonophorae Eschscholtz, 1829 in Korea to be three suborders, five families, eight genera, and 13 species. In addition, we summarize the synonyms and global distributions of these four newly recorded species in Korean waters.

Two newly recorded wolf spiders with one new species(Araneae, Lycosidae) from Korea

  • Kim, Seung-Tae;Yoo, Jung Sun
    • Journal of Species Research
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    • v.8 no.3
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    • pp.283-287
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    • 2019
  • Pardosa pseudolaevitarsis n. sp. and Hygrolycosa umidicola Tanaka, 1978 belonging to Lycosidae are described from Korea. To date, fourteen species in the genus Pardosa C. L. Koch, 1847 have been described from Korea. H. umidicola belongs to Hygrolycosa Dahl, 1908 was once described from Korea, but the previous description of this species could not provide adequate scientific evidence for adding H. umidicola to the Korean spider fauna. Pardosa pseudolaevitarsis n. sp. is similar to P. laevitarsis Tanaka & Suwa, 1986 in the shape of its epigyne and palp, but can be distinguished by the followings: epigynal atrium small; spermathecae extending to the end of atrium; shape, location and orientation of fertilization duct in epigyne and internal genitalia; blunt basal spur of median apophysis in palp; number, shape and arrangement cheliceral teeth on both margins. Both species were collected using pitfall traps on a ridge between rice fields and seem to prefer habitats with relatively high humidity.

New record of three Aspidisca species(Protozoa, Ciliophora) from South Korea

  • Ji Hye Choi;Atef Omar;Jae-Ho Jung
    • Journal of Species Research
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    • v.12 no.1
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    • pp.90-94
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    • 2023
  • The morphology and infraciliature of three newly recorded Aspidisca species in Korea, two collected from the eastern coast and one collected from Jeju Island, were investigated in vivo and after protargol impregnation. The three species are as follows: A. dentata Kahl, 1928, A. hexeris Quennerstedt, 1869, and A. polystyla Stein, 1859. The three species are characterized by having a "polystyla-arrangement" of frontoventral cirri: 1) A. dentata is characterized by having a broadly rotund body shape, a distinct peristomial spur, and a dorsal thorn; 2) A. hexeris is characterized by a broadly oval body shape, four projections along the left margin of body, and the single peristomial spur; and 3) A. polystyla has the broadly rotund body shape, transverse cirri each split into several parts (especially in vivo), and lacking of the peristomial spur. Among them, A. dentata and A. polystyla are poorly known and lack morphological description based on silver staining. In the present study, we provide a brief diagnosis, remarks, and photomicrographs.

A New Record of Epizoic Hydroid, Ectopleura radiata (Hydrozoa: Anthoathecata: Tubulariidae), from Korea

  • Ki-Hwan Lee;Seung-Joon Lee;Su-Hwan Sim;In-Young Cho;Sung-Jin Hwang
    • Animal Systematics, Evolution and Diversity
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    • v.39 no.1
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    • pp.16-21
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    • 2023
  • In 2022, during a survey of intertidal fauna around Jindo located in the Dadohaehaesang National Park in the South Sea, epizoic hydroids attaching onto seagrass (Zostera sp.) growing on soft sediments were collected. Through taxonomic examination, an unrecorded species, Ectopleura radiata, is newly added to the hydrozoan fauna of Korea. In addition, DNA barcoding for species from Ectopleura and Tubularia clarified the distinction among morphologically indistinguishable species without gonophores. Up to now, only one species, E. crocea, has been reported in Korea. Through this study, a total of two species belonging to genus Ectopleura have been reported in Korean waters so far.

Thanatus arcticus Thorell, 1872 (Araneae: Philodromidae) new to the Korean spider fauna

  • Sue Yeon Lee;Jung Sun Yoo;Chang Moon Jang;Seung Tae Kim
    • Journal of Species Research
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    • v.12 no.4
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    • pp.277-280
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    • 2023
  • Philodromidae Thorell, 1869 is one of the most diversified and largest families comprising 522 species in 29 genera within the order Araneae Clerck, 1757. The genus Thanatus C. L. Koch, 1837 comprise 99 species of the family and four species of the genus Thanatus (Philodromidae) have been recorded in Korea: T. coreanus Paik, 1979, T. miniaceus Simon, 1880, T. nipponicus Yaginuma, 1969, and T. vulgaris Simon, 1870. Two females of T. arcticus Thorell, 1872 were collected by sweep net between the shrubs in mountainous mixed forests from Mt. Chiaksan National Park, Wonju-si, Gangwon-do and Mt. Naejangsan National Park, Jangseong-gun, Jeollanam-do. The present study describes T. arcticus with measurements and taxonomic illustrations.

Ethnopharmacology, bioactivities and chemical constituents of some anti-cancer plants in Malaysia

  • Chooi, Ong-Hean
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 1999.10a
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    • pp.90-109
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    • 1999
  • Many plant species are used in Malaysia in folk medicine for the treatment of cancer. This paper presents some of these species with details on other ethnopharmacological uses, the known bioactivities and some chemical constituents of each of the species given. It is normal practice in traditional medicine that one species of plant is used to treat various ailments. Thus the plant species listed are all used to treat cancer but have various other ethnophrmacological uses as well, some with few other uses and rest with many other uses. Information on bioactivities of each species resulting from tests on human and experimental animals are also given. Proven bioactivities give strength to ethnopharmacological claims on the efficacies of plant resources in the treatment of cancer and various other ailments but will but will not necessarily lead to the production of new pharmaceutical drugs. Many of the known chemical constituents of each species are given. This shows the richness and variety of chemicals containes in each of the species listed, The chemicals listed may or may not prove to be important in the pharmaceutical sciences but is an indication of what each species contatin in thrms of plant chemicals, It is a well known fact that many of the pharmaceutical prescriptions in present day use are of plant origin and semi-synthetic or fully synthetic chemicals produced using knowledge gained from studies of phytochemicals. Thus the paper presented will give useful information and also shows the richness of plant species that have high potentials for the development of anti-cancer resources from plants in Malaysia.

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New Report of Three Unrecorded Species in Trichoderma harzianum Species Complex in Korea

  • Jang, Seokyoon;Kwon, Sun Lul;Lee, Hanbyul;Jang, Yeongseon;Park, Myung Soo;Lim, Young Woon;Kim, Changmu;Kim, Jae-Jin
    • Mycobiology
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    • v.46 no.3
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    • pp.177-184
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    • 2018
  • The genus Trichoderma (Hypocreaceae, Ascomycota) consists of globally distributed fungi. Among them, T. harzianum, one of the most commonly collected Trichoderma species, had been known as a polyphyletic or aggregate species. However, a total of 19 species were determined from the polyphyletic groups of T. harzianum. Thus, we explored Korean "T. harzianum" specimens that were collected in 2013-2014. These specimens were re-examined based on a recent study with translate elongation factor 1-alpha ($EF1{\alpha}$) sequences to reveal cryptic Trichoderma species in Korea. As a result, four different species, T. afroharzianum, T. atrobruneum, T. pyramidale, and T. harzianum, were identified. Except T. harzianum, the other three species have not been reported in Korea. In this work, we describe these species and provide figures.

Ethnopharmacology, bioactivities and chemical constituents of some anti-cancer plants in Malaysia

  • Chooi, Ong-Hean
    • Plant Resources
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    • v.3 no.1
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    • pp.46-58
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    • 2000
  • Many plant species are used in Malaysia in folk medicine for the treatment of cancer. This paper presents some of these species with details on other ethnopharmacological uses, the known bioactivities and some chemical constituents of each of the species given. It is normal practice in traditional medicine that one species of plant is used to treat various ailments. Thus the plant species listed are all used to treat cancer but have various other ethnophrmacological uses as well, some with few other uses and rest with many other uses. Information on bioactivities of each species resulting from tests on human and experimental animals are also given. Proven bioactivities give strength to ethnopharmacological claims on the efficacies of plant resources in the treatment of cancer and various other ailments but will but will not necessarily lead to the production of new pharmaceutical drugs. Many of the known chemical constituents of each species are given. This shows the richness and variety of chemicals containes in each of the species listed. The chemicals listed may or may not prove to be important in the pharmaceutical sciences but is an indication of what each species contatin in thrms of plant chemicals. It is a well known fact that many of the pharmaceutical prescriptions in present day use are of plant origin and semi-synthetic or fully synthetic chemicals produced using knowledge gained from studies of phytochemicals. Thus the paper presented will give useful information and also shows the richness of plant species that have high potentials for the development of anti-cancer resources from plants in Malaysia.

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First report of five free-living nematode species(Nematoda: Rhabditida) from Korea

  • Kang, Heonil;Seo, Jongmin;Kim, Donggeun;Bae, Changhwan;Kim, Yongchul;Choi, Insoo
    • Journal of Species Research
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    • v.8 no.3
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    • pp.259-267
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    • 2019
  • Five free-living nematode species belonging to the order of Rhabditida are described for the first time in Korea. Two unrecorded species of Rhabditidae, Cruznema tripartitum (Linston, 1906) Zullini, 1982, and Poikilolaimus oxycerca de Man, 1895, and one species of Peloderidae, Pelodera strongyloides Schneider, 1860, were collected in Korea. C. tripartitum has nine pairs of genital papillae arranged in 2+2+1+4 differently from similar species of C. scarabaeum which has ten genital papillae arranged in 2+1+4+3. Poikilolaimus oxycerca has shorter tail (shorter than anal body diameter) compared to similar species of P. regenfussi which has longer tail(longer than anal body diameter). Pelodera strongyloides has shorter tail(1-1.5 times anal body diameters long) than P. punctata (4 anal body diameters long). Two unrecorded species of Panagrolaimidae, Panagrolaimus apicatus Schuurmans Stekhoven & Teunissen, 1938 and Panagrolaimus rigidus (Schneider, 1866) Thorne, 1937 were collected in Korea. P. apicatus has rounded and lower lip compared to similar species, P. margaretae Massey, 1964 which has finely pointed lip. P. rigidus has slender tail and lips rounded and flat barely separated when compared to similar species, P. subelongatus(Cobb, 1914) Thorne, 1937 which has plumper tail and lips are well separated.