• 제목/요약/키워드: Draconematidae

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Redescription of Free-Living Marine Nematode, Dracograllus filipjevi Allen and Noffsinger, 1978 (Nematoda: Draconematidae) from Korea

  • Rho, Hyun-Soo;Kim, Dong-Sung;Kim, Won
    • Ocean Science Journal
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    • 제41권3호
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    • pp.163-173
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    • 2006
  • A draconematid nematode species, Dracograllus filipjevi Allen and Noffsinger, 1978, is described from the washings of shallow littoral coralline algae at Guryongpo in the eastern coast of Korea. This species is recognized by the following characteristics: larger body size, number of posterior sublateral adhesion tubes (9 in male and 12-13 in female) and subventral adhesion tubes (8-9 in male and 9-10 in female), the absence of cephalic acanthiform setae on rostrum, the presence of longitudinally areolated body cuticle with dot-like punctations, the presence of some cuticular collar in swollen pharyngeal region, the shape of amphidial fovea (large, elongate, and loop-shaped in both sexes), the absence of preanal corniform setae, and the absence of lateral differentiation on narrow body region. Morphological features of the species using differential interference contrast photomicrographs are described in detail in the present work. The is the first report of D. filipjevi in Korea.

Redescription of the Free-living Marine Nematode Species, Draconema japonicum Kito, 1976 (Nematoda: Draconematidae), by Scanning Electron Microscopy

  • Rho, Hyun-Soo;Kim, Won
    • Animal cells and systems
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    • 제8권4호
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    • pp.235-245
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    • 2004
  • Numerous specimens of adults and juveniles of Draconema japonicum Kito, 1976 have been found in intertidal and subtidal sediments and various algae around coast of South Korea. Draconema japonicum is recognized by the following characteristics: having an elongated loop-shaped amphideal fovea in male and horseshoe-shaped amphideal fovea in female, two pairs of uniformly tapered sublateral anal setae and two pairs of unevenly tapered subventral anal setae in male, eight to ten pairs in male and 13 to 15 pairs in female of posterior sublateral adhesion tubes, and five to six pairs of somatic setae on non-striated tail region. Scanning electron photomicrographs of the species are presented with a detailed morphological description and a key to the species of the genus Draconema Cobb, 1913. This is the first discovery of D. japonicum outside the Japanese waters.

A New Free-living Marine Nematode Species of the Genus Dracogalerus Allen and Noffsinger (Nematoda: Draconematidae) from a Shallow Subtidal Zone of Jeju Island, Korea

  • Rho, Hyun-Soo;Kim, Won
    • Animal cells and systems
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    • 제9권3호
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    • pp.113-122
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    • 2005
  • A new species of free-living marine draconematid nematode, Dracogalerus koreanus n. sp., is described from the shallow subtidal coarse sediments and various invertebrates of Jeju Island, Korea. This is the first record of this genus from Korea. Dracogalerus koreanus n. sp. is morphologically most similar to D. cryptocephalus (Irwin-Smith) in having similar head shape (rostrum broadly rounded anteriorly) and eight cephalic adhesion tubes, but differs by the small number of rounded protuberances on the ventral side of non-annulated tail end (5 vs 6), small number of posterior subventral adhesion tubes in male (5-6 vs 8), intermingled somatic setae (5-6 vs absent), spicules (slightly curved and relatively thick vs strongly curved and very slender), and higher 'c' value in male (8.8 vs 7.5).

필리핀산 해양 선충류의 분류학적 연구 I. 가는도마뱀선충속 (Desmodorida목: 도마뱀선충과) (Taxonomic Study of Marine Nematodes from the Philippines I. Genus Tenuidraconema (Desmodorida: Draconematidae))

  • 노현수;김원
    • Animal Systematics, Evolution and Diversity
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    • 제21권1호
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    • pp.57-66
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    • 2005
  • 필리핀 바탕가스의 조하대 저질에서 채집한 자유 생활하는 해양 선충류 1신종 필리핀가는도마뱀선충 (Tenuidraconema philippinensis)을 기재하였다. 필리핀가는도마뱀선충은 두부 감각기관의 위치(12개 두부감각기관 모두가 체환 위에 있음), 후미흡착기관의 수 (측면 아래에 수컷은 12개, 암컷은 11개를 가지며, 배면 아래에 수컷은 16개, 암컷은 17개를 가짐), 후미흡착기관 사이에 있는 감각모가 없는 점등의 중요 분류학적 형질에서 근연종인 T. fiersi와 T. koreensis로부터 쉽게 구분되어진다 이 논문은 필리핀의 가는도마뱀선충속 해양 선충류에 대한 첫 보고이다.

곁도마뱀선충속 (선형동물문: 도마뱀선충과)의 해양 선충류 1신종 (Paradraconema jejuense, a New Species of Genus Paradraconema (Nematoda: Draconematidae) from Korea)

  • 노현수;김원
    • Animal Systematics, Evolution and Diversity
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    • 제21권1호
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    • pp.81-91
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    • 2005
  • 제주도의 조하대 저 질에서 채집 한 해 양 선충류 1신종 제주곁도마뱀 선충 (Faradraconema jejuense)을 기재하였다. 제주곁도마뱀선충은 가늘고 긴 형태의 유사한 체형과 암수 모두 다 동일한 형태의 두부감각기관을 가지는 점에서 P antarcticum과 유사하지만 몸 뒤쪽 부위의 측면 아래에 수컷은 9개에서 10개, 암컷은 11개에서 12개, 배면 아래에 수컷은 16개에서 17개, 암컷은 17개에서 18개의 후미흡착기관을 가지는 점, 1쌍의 두부 돌기를 가지는 점, 안점을 가지지 않는 점, 몸 중앙 측면의 표면이 구별되는 점과 같은 중요 형질에서 쉽게 구분되어 진다. 이 논문은 한국의 곁도마뱀선충속 해양 선충류에 대한 첫 분류학적 보고이다.

Tenuidraconema koreensis, a New Species of Marine Nematodes (Adenophorea: Desmodorida) from South Korea

  • Rho, Hyun-Soo;Kim, Won
    • Animal cells and systems
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    • 제8권3호
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    • pp.155-163
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    • 2004
  • Tenuidraconema koreensis, a new species of free-living marine nematodes, collected from the subtidal coarse sediments and various invertebrates of Namae, is described. The new species differs from T. fiersi Decraemer, 1989, the only other species in the genus, by having the combination of the following characters: the position of twelve cephalic adhesion tubes in both sexes (anterior six cephalic adhesion tubes inserted on the rostrum and posterior six inserted on the body annules), and the number of posterior sublateral adhesion tubes (12 in male and 13 in female) and posterior subventral adhesion tubes (15 in male and 19 in female). This paper contains the description of the new species with illustrations and scanning electron microscope (SEM) photomicrographs. This is the first discovery of the monotypic genus Tenuidraconema outside the type locality.