• 제목/요약/키워드: genus two

검색결과 1,389건 처리시간 0.029초

The First Record of Two Species of Leptocephali of the Genus Saurenchelys (Nettastomatidae, Anguilliformes) from Korea

  • Oh, Ji-Na;Kim, Sung;Lee, Youn-Ho
    • Ocean Science Journal
    • /
    • 제41권4호
    • /
    • pp.207-210
    • /
    • 2006
  • Leptocephali of the genus Saurenchelys in the family Nettastomatidae were collected from the coastal area of Pohang, Korea and described as the first record from Korean waters. S. stylura and S. lateromaculatus are characterized by two intestinal swellings, the pattern of pigments in the notochord, and by smaller pectoral fins than those of other genus. They are very similar to each other but they are distinguished by the pattern of pigments in the notochord and the intestinal swellings.

Two New Records of the Lichen Genus Placynthiella Elenkin in South Korea

  • Joshi, Yogesh;Nguyen, Thi Thuy;Lokos, Laszlo;Koh, Young-Jin;Hur, Jae-Seoun
    • Mycobiology
    • /
    • 제39권1호
    • /
    • pp.54-56
    • /
    • 2011
  • This study describes two new records of the lichen genus Placynthiella (P. hyporhoda and P. icmalea) from South Korea. A brief taxonomic description and comments are provided for the new records. An artificial key is also provided for known species of this genus in South Korea.

Two Marine Littoral Species of the Genus Medon (Coleoptera: Staphylinidae: Paederinae) New to Korea

  • Kim, Tae-Kyu;Cho, Young-Bok;Ahn, Kee-Jeong
    • Animal Systematics, Evolution and Diversity
    • /
    • 제27권1호
    • /
    • pp.69-73
    • /
    • 2011
  • The taxonomy of marine littoral species of the genus Medon Stephens in Korea is presented. The genus and two species-Medon prolixus (Sharp) and M. rubeculus Sharp-are identified for the first time in the Korean Peninsula. Redescriptions of M. prolixus and M. rubeculus with an illustration of its habitus and line drawings are provided.

한국산 붉은쥐속 2종의 정자의 형태 (Sperm Morphology of Two Species of the Genus Apodemus (Rodentia, Mammalia) in Korea)

  • 양병국;정현덕고흥선
    • 한국동물학회지
    • /
    • 제34권1호
    • /
    • pp.59-63
    • /
    • 1991
  • Sperm morphology of ho species (hpodemus agrarius coreae and Apodemus peninsulae peninsulae) of the genus Apodrmus in Korea was investigated. Two species were similar in six qualitative characters, i. e., head shape, presence of apical ridge, process, cone-like process, and mitochondrial sheath, and the degree of development in outer dense Hber, Lengths of head and midpiece were not different with each other, but length of principal plus end piece was significantly larger (P ≪ 0.001) in hpodemus agrarius coreae than that in hpodemus peninsular peninsulae.

  • PDF

Taxonomic Revision of the Genera Pareulype Herbulot and Pelurga Hubner (Lepidoptera, Geometridae) in Korea

  • Choi, Sei-Woong
    • Animal cells and systems
    • /
    • 제10권2호
    • /
    • pp.103-108
    • /
    • 2006
  • A geometrid genus Pareulype Herbulot sensu Inoue (1977) is reviewed in Korea. Up to now, two species, P. taczanowskiaria (Oberthur) and P. onoi Inoue, were known from Korea and these two species were newly combined into another genus Pelurga Hubner. One Pareulype species, P. consanguinea (Butler), is first recognized from Korea throughout the present study. Diagnoses of each genus and species are provided with illustrations of adults and genitalia. Phylogenetic relationship of Pareulype and Pelurga Hubner is briefly discussed.

Two New Species of Copepods (Crustacea) Associated with the Sponge Phyllospongia foliascens (Pallas) from the Moluccas

  • Kim, Il-Hoi
    • Animal cells and systems
    • /
    • 제9권4호
    • /
    • pp.229-238
    • /
    • 2005
  • Spongicola tropicanus, a new genus and species of the family Eunicicolidae, and Asterocheres brevisurculus, a new species of the family Asterocheridae, are described as copepods associated with the sponge Phyllospongia foliascens (Pallas) from the Moluccas. Spongicola is the second genus of the family and may be characterized by a two-segmented prosome, the absence of leg 3, and the presence of leg 5. Asterocheres brevisurculus may be charecterized by one-segmented mandibular palp, short oral siphon, and 19-segmented female antennule.

Two Species of the Genus Disporella (Bryozoa: Cyclostomata) from Korea

  • Hyun Sook Chae;Ho Jin Yang; Bum Sik Min;Ji Eun Seo
    • Animal Systematics, Evolution and Diversity
    • /
    • 제39권1호
    • /
    • pp.22-26
    • /
    • 2023
  • This paper describes two cyclostomatous bryozoans belonging to the genus Disporella Gray, 1848 found in Korean waters. This study was carried out with the materials which were collected from two localities, Jodo Island and Gapado Island, from 2014 to 2015. It is known that the genus Disporella Gray, 1848 needs a thorough revision and is difficult to identify because it has been documented in very few of the nominal species. Approximately 58 species have been recognized worldwide. One species, Disporella novaehollandiae (D'Orbigny, 1853), has been reported from Korean waters so far. Two species, D. pristis (MacGillivray, 1884) and D. wanganuiensis (Waters, 1887), distributed in the Indo-Pacific, are newly added to the Korean bryozoans fauna in this study. Accordingly, the Korean cyclostomatous bryozoans have increased to 17 species, ten genera and five families. Descriptions and illustrations of the two Disporella species using scanning electron microscopy are provided in this paper.

Characteristic Genera of Closed Orientable 3-Manifolds

  • KAWAUCHI, AKIO
    • Kyungpook Mathematical Journal
    • /
    • 제55권4호
    • /
    • pp.753-771
    • /
    • 2015
  • A complete invariant defined for (closed connected orientable) 3-manifolds is an invariant defined for the 3-manifolds such that any two 3-manifolds with the same invariant are homeomorphic. Further, if the 3-manifold itself can be reconstructed from the data of the complete invariant, then it is called a characteristic invariant defined for the 3-manifolds. In a previous work, a characteristic lattice point invariant defined for the 3-manifolds was constructed by using an embedding of the prime links into the set of lattice points. In this paper, a characteristic rational invariant defined for the 3-manifolds called the characteristic genus defined for the 3-manifolds is constructed by using an embedding of a set of lattice points called the PDelta set into the set of rational numbers. The characteristic genus defined for the 3-manifolds is also compared with the Heegaard genus, the bridge genus and the braid genus defined for the 3-manifolds. By using this characteristic rational invariant defined for the 3-manifolds, a smooth real function with the definition interval (-1, 1) called the characteristic genus function is constructed as a characteristic invariant defined for the 3-manifolds.

Survey of Garlic Virus Disease and phylogenetic Characterization of Garlic Viruses of the Genus Allexivirus Isolated in Korea

  • Koo, Bong-Jin;Kang, Sang-Cu;Chang, Moo-Ung
    • The Plant Pathology Journal
    • /
    • 제18권5호
    • /
    • pp.237-243
    • /
    • 2002
  • A survey of virus infection in garlic plants cultivated in Korea was conducted for three years. Most virus-infected garlic plants (Allium sativum) showed typical symptoms on the leaves such as yellow mosaic, stripes, and distortion. Through immunosorbent electron micro-scopy and RT-PCR analysis, the complex mixtures of viruses including garlic viruses of the genus Allerivirus, gaylic strain of Leek yellow stripe virus of the genus Potyvirus, and Garlic latent virus of the genus Carlavirus were identified in the virus-infected garlic plants. Among these viruses, Allexivirus was the most frequently detect-ed in the regions surveyed. Using sets of differential primers for Allexivirus genomes, two members of the genus were amplified and sequenced from the purified viruses. The deduced amino acid sequences for the coat proteins and the nucleic acid binding proteins of two viruses showed high homologies to Garlic virus A (CarV-A) and Garlic virus D (GarV-D) of Allekivirus. This is the first report of GarV-A and GarV-D in Korea. This suggests that Allexivirus in gavlic plants in Korea was mixed and varied. Phylogenetic analyses showed that the genus Allexivirus was diversi(ied by the processes of accumulation and evolution of viruses in garlic plants due to the long period of repeated vegetative propagation.

분자생물학적 방법을 이용한 Moniliella 속과 Trichosporonoides 속의 분류학적 고찰 (Are the genus Moniliella and Trichosporonoides closely related in molecular taxonomic relationship\ulcorner)

  • 신기선;신용국;태경환;권오유;이상한
    • 생명과학회지
    • /
    • 제11권2호
    • /
    • pp.133-137
    • /
    • 2001
  • The molecular taxonomic relationship of nine species in the genus Moniliella Stolk & Dakin and Trichosporonoides Haskins & Spencer and six species of other yea나-like fungi was examined by sequencing analysis of large subunit rDNA D1/D2 variable domain. The fifteeen species fell into two major groups corresponding with their genetic relationships. The nine species of the genus Moniliella and Trichosporonoides were placed at the same cluster. similarity values based on the D1/D2 domain sequences were 45.4-100% among species of genus Moniliella, 45.2-84.4% among genus Trichosporonoides species, and 45.6-90.1% among species of genus Moniliella and Trichosporonoides. Identical sequence similarity was observed between M. suaveolens var. nigra and M. suaveolens. A colse relationship of M. mellis. and M. acetoabutens is observed. The result of this study provided and insight into the genetic origins of genus Moniliella and Trichosporonoides species as well as their genetic relationships. Genus Moniliella and Trichosporonoides are closely related to each other based on sequence analysis of the large subunit rDNA D1/D2 region and we suggest combination of the genus Moniliella and Trichosporonoides to single genus.

  • PDF