• 제목/요약/키워드: Dictyoceratida

검색결과 33건 처리시간 0.025초

Two New Euryspongian Sponges (Dictyoceratida: Dysideidae) from Korea

  • Lee, Kyung-Jin;Sim, Chung-Ja
    • Animal Systematics, Evolution and Diversity
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    • 제23권1호
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    • pp.35-38
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    • 2007
  • Two new sponges, Euryspongia coreana n, sp, and E. regularis n, sp., collected from Hataedo, Ulleungdo and Chujado, Korea by SCUBA diving during the period from 2001 to 2005. Euryspongia coreana n. sp, is very close to E. lactea Row, 1911 and E. arenaria Bergquist, 1961 in skeletal structure, but primary and secondary fibres of the new species are thicker than those of E. lactea, E. arenaria is cored with mostly spicule fragments but E. coreana n. sp. is cored with mainly sand. E. regularis n. sp. is readily distinguished from other eurypsongian sponges. by its thickly encrusting growth form, yellowish ivory colour, and thickness of fibres. The bright yellow color and regular ladder-like skeletal structure are major features distinguishing this E. regularis n. sp. from other euryspongian sponges. Most species are brown, violet, red or orange in color except for E. lactea (milky white), E. arenaria (biscuit) and E. coreana n. sp. (yellowish ivory). Other euryspongian sponges have regularly or irregularly well developed secondary fibres, but E. regularis n. sp. has simple and regular secondary fibres.

Eight New Species of Genus Coscinoderma (Demospongiae: Dictyoceratida: Spongiidae) from Chuuk Island, The Federated States of Micronesia

  • Sim, Chung Ja;Kim, Young A
    • Animal Systematics, Evolution and Diversity
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    • 제30권4호
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    • pp.248-259
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    • 2014
  • This paper describes eight new species of the genus Coscinoderma from Chuuk Island, the Federated States of Micronesia. This genus is characterized by very fine, meandering uncored secondary fibres. All the new Coscinoderma species are compared with eight other valid species from tropical regions. Coscinoderma folium n. sp. is characterized by its large thickly foliate shape, and cored primary fibres are easily found between secondary fibres in choanosome. Coscinoderma lacium n. sp. differs in having round conules and no cored primary fibres. Coscinoderma cavernosa n. sp. is distinguished from other species by its cavernous shape and long sharp conules. Coscinoderma wenoa n. sp. is characterized by long conules and primary fibres. Coscinoderma mappula n. sp. differs in having a thick sand crust in the choanosome. Coscinoderma bakusi n. sp. is characterized by having several oscules at the top of the sponge and color changed grey to dark brown in alcohol. Coscinoderma pollax n. sp. is characterized by having a small thumb shape. Coscinoderma truki n. sp. similar to C. pollax in shape but differs in cored primary fibres with many spicules.

Six New Species of Two Genera Dysidea and Pleraplysilla (Demospongiae: Dictyoceratida: Dysideidae) from Korea

  • Kang, Dong Won;Lee, Kyung Jin;Sim, Chung Ja
    • Animal Systematics, Evolution and Diversity
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    • 제36권2호
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    • pp.143-153
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    • 2020
  • Six new species of two genera Dysidea and Pleraplysilla (Demospongiae: Dictyoceratida: Dysideidae) are described from Jejudo Island, Dokdo Island and Guryongpo, Korea. Among them, five new species of the genus Dysidea are compared with other reported species in fibres structure, cored detritus and fibres arrangement. Dysidea niveus n. sp. is characterized by thin collagenous plate-like fibres. Dysidea dokdoensis n. sp. is similar to D. geomunensis Kim et al., 2020 in skeletal structure, but differs in length of surface conules. Dysidea hydra n. sp. is similar to D. mureungensis Kim et al., 2020 at the surface, but differs in fibres cored with spicules. Dysidea sabulum n. sp. is similar to D. glavea Kim et al., 2020 in cored large sands in fibres, but differs in having numerous large sands cored in fibres throughout the sponge. Dysidea hirsuta n. sp. is unique, only surface fibres cored with large sands but not in choanosome. A new species of genus Pleraplysilla, P. flabellum n. sp. is compared with seven other reported species. This new species is not encrusting but has a thick flabellate shape.

한국 모래해면속 (망각해면목, 가는실해면과)의 2신종 (Two New Speies of the Genus Psammocinia(Dictyoceratida, Irchiniidae) from korea)

  • Sim, Chung-Ja;Lee, Kyung-Jin
    • Animal Systematics, Evolution and Diversity
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    • 제17권2호
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    • pp.245-250
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    • 2001
  • 한국 가거도에서 채집된 모래해면속(망각해면목: 가는실해면과)의 2 신종, 버키스트모래해면(Psammocinis bergquisti n. sp.) 과 가거모래해면(P. gageoensis n. sp.)을 기색한다. 버키스트모래해면은 외형이 엄지손가락 모양이며 지금까지 알려진 모래해면 속의 종들은 좁고 단순한 형태의 2차섬유를 갖는 반면 본 신종은 2차섬유가 얇은 판 모양이거나 넓은 망구조이다. 가거모래해면은 모슬모래해면(P. mosulpia Sim. 1998) 과 외형에서 매우 유사하지만, 1차섬유가 복잡한 총생모양으로 섬유 내부에 있는 모래와 골편들의 겉으로 잘 보이지 않은 점이 특징이다. 가거모래해면의 1차섬유 속에는 모슬모래해면의 1차섬유 속의 모래보다 작은 모래들이 있다.

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Eight new species of two genera Dysidea and Euryspongia (Demospongiae: Dictyoceratida: Dysideidae) from Korea

  • Kim, Young A;Lee, Kyung Jin;Sim, Chung Ja
    • Journal of Species Research
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    • 제9권1호
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    • pp.56-67
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    • 2020
  • Eight new species of two genera Dysidea and Euryspongia (Demospongiae: Dictyoceratida: Dysideidae) are described from Gageodo, Ulleungdo, Geomundo, and Jejudo Islands, Korea. Four new species of the genus Dysidea are differentiated by the fibre structure, cored detritus, and fibre arrangement. Dysidea mureungensis n. sp. is characterized by the honeycomb shape of surface and no distinction between primary and secondary fibres. Dysidea glavea n. sp. differs by large sands cored in fibres and that the membrane easily separates from fibres. Dysidea geomunensis n. sp. has fibres that are thinner than those of D. glavea n. sp.. Dysidea corallina n. sp. is characterized by folded fan shape and the arrangement of secondary fibres. Four new species of the genus Euryspongia are differentiated by the fibre structure, cored detritus, shape of sponge, and fibre arrangement. Euryspongia radicula n. sp. is very different from other species by having regularly arranged fibres. Euryspongia spina n. sp. has a fence-like skeletal structure. Bridged type secondary fibres are arranged near the surface and web types are at the base of fibres. Euryspongia flabellum n. sp. has a very unique wide, thin leaf-like shape. String-like primary fibres of E. linea n. sp. are very unique and cored with large sized sands.

Seven new species of two genera Scalarispongia and Smenospongia (Demospongiae: Dictyoceratida: Thorectidae) from Korea

  • Kim, Young A;Lee, Kyung Jin;Sim, Chung Ja
    • Journal of Species Research
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    • 제9권2호
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    • pp.147-161
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    • 2020
  • Seven new species of two genera Scalarispongia and Smenospongia (Demospongiae: Dictyoceratida: Thorectidae) are described from Gageo Island and Jeju Island, Korea. Five new species of Scalarispongia are compared to nine reported species of the genus by the skeletal structure. Scalarispongia viridis n. sp. has regular ladder-like skeletal pattern arranged throughout the sponge body and has pseudo-tertiary fibres. Scalarispongia favus n. sp. is characterized by the honeycomb shape of the surface and is similar to Sc. flava in skeletal structure, but differs in sponge shape. Scalarispongia lenis n. sp. is similar to Sc. regularis in skeletal structure but has fibers that are smaller in size. Scalarispongia canus n. sp. has irregular skeletal structure in three dimensions and ladder-like which comes out of the surface and choanosome. Scalarispongia subjiensis n. sp. has pseudo-tertiary fibres and its regular ladder-like skeletal pattern occurs at the choanosome. Two new species of Smenospongia are distinguished from the other 19 reported species of the genus by the skeletal structure. Smenospongia aspera n. sp. is similar to Sm. coreana in sponge shape but new species has rarely secondary web and thin and thick bridged fibres at near surface. Smenospongia mureungensis n. sp. has very simple skeletal structure.

한국 각질해면류 모래해면속(망각해면목: 가는실해면과)의 3신종 (Three New Horny Sponges of the Genus Psammocinia (Dictyoceratida: Irciniidae) from Korea)

  • Chung Ja Sim
    • Animal Systematics, Evolution and Diversity
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    • 제14권1호
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    • pp.35-42
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    • 1998
  • 제주도와 남해도에서 채집된 모래해면속의 3신종, Psammocinia mammiformis, P. mosulpia, 그리고 P. jejuensis를 기재한다. 모래해면속의 특징은 많은 양의 모래입자가 그들의 섬유나 기질안에 포함되어 있거나 또는 해면의 표면에 모래껍질로서 포함되어 있는 것이 특징이다.

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A New Species of the Genus Narrabeena (Demospongiae: Dictyoceratida: Thorectidae) from Korea

  • Kim, Hye-Ri;Sim, Chung-Ja
    • Animal Systematics, Evolution and Diversity
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    • 제26권1호
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    • pp.83-86
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    • 2010
  • A new species of the family Thorectidae, Narrabeena nigra n. sp. is described. This species was collected from the front of Songaksan, Daejeong-eup, Seogwipo-si, Jejudo Island, Korea. Narrabeena nigra n. sp. is similar to Narrabeena lamellate (Bergquist, 1980) with uncored primary and secondary fibres and an unarmoured surface. They differ in growth form, colour, and fibres.

Trisoxazole Macrolide from a Marine Sponge Sarcotragus Species

  • Liu, Yong-Hong;Shinde, Pramod B.;Hong, Jong-Ki;Lee, Chong-O.;Im, Kwang-Sik;Jung, Jee-H.
    • Natural Product Sciences
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    • 제11권1호
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    • pp.50-53
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    • 2005
  • Bioassay-directed fractionation of the lipophilic extract of a marine sponge Sarcotragus sp. led to the isolation of a known trisoxazole containing macrolide, mycalolide B (1). Its structure was identified by NMR and MS analyses. This is the first report on the isolation of macrolide from a sponge of the genus Sarcotragus (Order: Dictyoceratida).

A New $5{\alpha},8{\alpha}-Epidioxy$ Sterol from a Marine Sponge Psammocinia Species

  • Park, Hye-Jin;Luo, Xuan;Hong, Jong-Ki;Kim, Dong-Kyoo;Im, Kwang-Sik;Jung, Jee-H.
    • Natural Product Sciences
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    • 제11권4호
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    • pp.253-256
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    • 2005
  • An investigation of the MeOH soluble fractions of marine sponge Psammocinia sp. (Order: Dictyoceratida) led to the isolation of a new epidioxy sterol (1) and four known sterols (2-5). Their planar structures were defined by analyses of the spectroscopic data. The 27-nor-24-methylcholestan type side chain with an epidioxy nucleus (1) was unprecedented. Compounds 1-5 were isolated from a sponge Psammocinia sp. for the first time.