• 제목/요약/키워드: One new species

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New record of commensal scale worms, Arctonoe vittata (Grube, 1855) and Hyperhalosydna striata (Kinberg, 1856) (Polychaeta: Polynoidae) from Korean waters

  • Park, Taeseo;Lee, Sang-kyu;Kim, Won
    • Journal of Species Research
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    • 제5권3호
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    • pp.517-529
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    • 2016
  • Two scale worms of the family Polynoidae, Arctonoe vittata (Grube, 1855) and Hyperhalosydna striata (Kingberg, 1856) were found for the first time from Korea by SCUBA diving survey. The two species are free-living organisms or associated commensally with a wide variety of other invertebrates. Specimens of A. vittata were collected from the East Sea and were closely associated with asteroids, holothuroids, gastropods and nudibranchs species. Specimens of H. striata were collected from Jeju-do Island, and of these, one specimen was collected in a tube of eunicid species. The two species can be easily distinguished from their congeners by distinct morphological characteristics as follows: (1) A. vittata has pigmented band near segment eight and two kinds of neurochaetae; (2) H. striata has reddish-brown longitudinal striped elytra. The morphological key characteristics of both species agreed well with their original descriptions and redescriptions. In this study, the descriptions, detailed illustrations and ecological photographs of two species based on Korean materials were provided.

Ulva grossa sp. nov. (Ulvales, Chlorophyta) from Korea based on Molecular and Morphological Analyses

  • Kang, Pil Joon;An, Jae Woo;Nam, Ki Wan
    • 한국해양바이오학회지
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    • 제14권1호
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    • pp.51-60
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    • 2022
  • A green alga specimen was collected from the eastern coast of Korea. This species shared the typical features of genus Ulva and was characterized by irregularly shaped thalli, relatively small and thick thallus, entire undulate margins without serrations, and one or two pyrenoids per cell. In a phylogenetic tree, based on sequences of the nuclear-encoded internal transcribed spacer region, it nests as a sister clade to a few species including Ulva ohnoi, which has a relatively large thallus. This Korean algal specimen differs from the species forming the same subclades, including U. ohnoi, Ulva fasciata, Ulva reticulata, and Ulva gigantean, and has a relatively small (3-8 cm) and thick (60-100 ㎛) thallus. Of these species, U. ohnoi, originally described from Japan, is similar to the Korean alga as it had a thick thallus of 30-90 ㎛, but it has microscopic serrations on the thallus margin, unlike the Korean alga. The genetic distance between the Korean alga species and the aforementioned species was determined to be 1.8%-4.8%, indicating an inter-specific divergence level at the genus Ulva. Herein, Ulva grossa sp. nov. (Ulvales, Chlorophyta) from Korea is described based on the morphological and molecular analyses.

부추속(부추과)의 두 신분류군: 돌부추, 둥근산부추 (Two new taxa of Allium (Alliaceae) from Korea: A. koreanum H.J. Choi et B.D. Oh and A. thunbergii var. teretifolium H.J. Choi et B.D. Oh)

  • 최혁재;장창기;고성철;오병운
    • 식물분류학회지
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    • 제34권2호
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    • pp.75-85
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    • 2004
  • 한국의 남부지방에서 발견된 부추속(부추과)의 새로운 두 분류군을 기재 및 도해하였다. 신종으로 처리된 돌부추(A. koreanum H.J. Choi et B.U. Oh)는 크기가 보다 크며, 별모양으로 완전히 벌어진 옅은 분홍색의 화피, 현저하게 돌출된 화사, 그리고 원추형의 주두 및 염색체 수 등의 특징으로 동북아시아에 널리 분포하는 돌부추절(sect. Reticulato-bulbosa)의 가는산부추(A. splendens)와 명확히 구분되었다. 또한 신변종으로 처리된 둥근산부추(A. thunbergii var. teretifolium H.J. Choi et B.U. Oh)는 원통형의 속이 비어있는 엽신 등의 특징으로 근연인 산부추(var. thunbergii) 및 세모산부추(var. deltoides)와 쉽게 구별되었다. 한국산 돌부추절의 두 종과 산부추(산부추절)의 세 변종에 대한 검색표를 제시하였다.

국외에서 출항한 국내 입항 선박에서 검출된 한국 미분포 편승자 해충에 대한 보고 (Report on the Hitchhiker Insect Pests Detected from the Foreign Vessels Entering into Korea)

  • 강태화;김상웅;조일규;홍기정;박상욱;김남희;최득수
    • 한국응용곤충학회지
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    • 제59권2호
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    • pp.117-127
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    • 2020
  • 2018년 6월 1일부터 9월 17일까지 109일 동안, 총 112개 국외 발 국내 입항 선박을 대상으로 편승자 해충(hitchhiker insect pests)에 대한 모니터링을 실시하였다. 그 결과, 총 336개체의 편승자 해충을 확보하였으며, 이를 통합 분류학적 종동정 방법(integrative identification method)을 이용하여 9목 47과 159종으로 동정하였다. 이 중 총 3목 9과 14종의 한국 미분포종(not-distributed species)이 확인되어 보고하며, 검출된 미분포종에 대해서 침입종(invasive species) 내지 침입 가능종(invasive likelihood species)에 대한 위험성 평가를 위한 data sheet를 제공하였다. 또한, 미기록(unrecorded species), 미보고종(unreported species) 내지 신기록종(new recorded species)과 용어의 혼동을 피하기 위하여 본 연구에서는 미분포종(not-distributed species)을 제안하여 사용하였다.

한국산 세포성 점균의 신종 : Dictyostelium valenstemmum sp. nov. (New Dictyostelid in Mt. Surak, Korea;Dictyostelium valenstemmum sp. nov.)

  • 심규철;장남기
    • 아시안잔디학회지
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    • 제10권2호
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    • pp.117-124
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    • 1996
  • One new cellular slime mold, Dicivostelium valenstemmun sp. n. Shim et Chang, is isolated from the fermentation layer of soils in the cool temperate forests of Surak mountain, Korea. This species has the sori and sorophore yellow-pigmented, and sparse or irregular branches. And it is characterized by tall and robust sorocarps, well-form basal disks, mucoroides-type aggregations and large spores. This species has sorophores gradually tapering from bases to tips, simple capi- tate sorophore tips and conical bases. When prostrates on the plates, it has sparsely clavate bases. Spores are considerably large, 6.8~9.9 x 3.4~5.1 $\mu$m(avg. 8.5 x 4.1 $\mu$m), L /W index l.84~2.43(avg. 2.07) without polar granules. Key words: Diccyostelium valeustemmum, Cool temperate forests, Surak mountain.

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New record of Eumonopyta Moriuti, 1977 (Lepidoptera, Yponomeutidae) from Korea

  • Sohn, Jae-Cheon
    • Journal of Species Research
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    • 제9권4호
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    • pp.489-491
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    • 2020
  • An yponomeutid genus Eumonopyta Moriuti, 1977 is recorded for the first time from Korea, based on the species Eumonopyta unicornis Moriuti, 1977. Eumonopyta is distinguished from Yponomeuta by the lack of the areole in the forewing, the presence of the hindwing veins, Sc and R1 completely fused, the lack of the spinules on the gnathal processes, and the presence of three spiniform cornuti in the phallus. Eumonopyta unicornis is characterized by the presence of greenish irrotation on the forewings. The Korean records of E. unicornis are based on two male specimens from the islands, Geojedo (Gyeongsangnam-do) and Jejudo (Jeju-do) and one female specimen from the island Dolsando (Jeollanam-do). External appearance and genitalia of E. unicornis are redescribed and illustrated. The occurrence status of E. unicornis in Korea is briefly discussed. With our records from Korea, the distributional range of E. unicornis is expanded from Japan and Taiwan.

Hesperinidae (Diptera: Bibionomorpha) a new family from the Korean Peninsula

  • Podenas, Sigitas;Park, Sun-Jae;Kim, A Young
    • Journal of Species Research
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    • 제9권2호
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    • pp.170-173
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    • 2020
  • Research on Korean nematocerous flies (Diptera: Nematocera) was started by the National Institute of Biological Resources in 2012. This publication is a continuation of our previous work. During the season of 2019 insects were collected in Odaesan National Park by the researchers from Korea University. Among these samples, two specimens belonging to the family Hesperinidae, which was previously unrecorded from Korea, were noticed. This family is known from countries bordering Korea (East Siberia and Far East of Russia, Hokkaido Island of Japan), thus occurrence of hesperinid flies was expected on the Korean Peninsula. Only one genus Hesperinus Walker, 1848 with eight species belong to this family. They are developing in decaying wood of deciduous trees. Hesperinus rohdendorfi Krivosheina & Mamaev, 1967, which was known from East Siberia and Far East of Russia is recorded from South Korea. Redescription and photographs of the most important taxonomical details are presented.