• Title/Summary/Keyword: Stelletta sp.

Search Result 6, Processing Time 0.017 seconds

Two Species of Genus Stelletta (Astrophorida: Ancorinidae) from Korea

  • Shim, Eun-Jeong;Sim, Chung-Ja
    • Animal cells and systems
    • /
    • v.13 no.2
    • /
    • pp.147-152
    • /
    • 2009
  • Two species in the genus Stelletta, Stelletta crusta n. sp and Stelletta maxima Thiele, 1898 have been Collected from Geomundo Island. Stelletta crusta n. sp is similar to Stelletta tetrafurcata Hoshino, 1981 in the clade of the dichotriaenes which is trifurcate or multifurcate but both species differ in spicule size and composition. Stelletta maxima is first recorded in the Korean fauna.

Two Marine Sponges of the Family Ancorinidae (Demospongiae: Astrophorida) from Korea

  • Shim, Eun Jung;Sim, Chung Ja
    • Animal Systematics, Evolution and Diversity
    • /
    • v.29 no.1
    • /
    • pp.31-35
    • /
    • 2013
  • Two sponges, Stelletta subtilis (Sollas, 1886) and Stryphnus sollasi n. sp., were collected from depth of 24-30 m at Jeju-do Island and Chuja-do Island by SCUBA diving from July 2003 to June 2010. The new species Stryphnus sollasi n. sp is similar with Stryphnus niger Sollas, 1886 in the composition of spicules, however they differ in colour and spicule size. This new species has smaller oxeas and larger oxyasters than those of S. niger. This new species has two size categories of oxyaster but S. niger has one size category of oxyaster. The colour of S. sollasi n. sp is white, but the latter puce black. Stelletta subtilis (Sollas, 1886) is first recorded in Korean fauna.

A New Glycerol Ether from a Marine Sponge Stelletta Species

  • Lee, Seung-Yeon;Zhao, Qingchun;Choi, Kyu-Teak;Hong, Jong-Ki;Lee, Dong-Seok;Lee, Chong-O.;Jung, Jee-H.
    • Natural Product Sciences
    • /
    • v.9 no.4
    • /
    • pp.232-234
    • /
    • 2003
  • A new glycerol ether has been isolated from a marine sponge Stelletta sp. By bioactivity-guided fractionation. The structure was established on the basis of NMR and MS analyses. The compound was evaluated for cytotoxicity against a small panel of five human tumor cell lines and exhibited significant cytotoxicity.

A New Cyclitol Derivative from a Sponge Stelletta Species

  • Zhao, Qingchun;Liu, Yong-Hong;Hong, Jong-Ki;Lee, Chong-O.;Park, Jong-Hee;Lee, Dong-Seok;Jung, Jee-H.
    • Natural Product Sciences
    • /
    • v.9 no.1
    • /
    • pp.18-21
    • /
    • 2003
  • Guided by the brine shrimp lethality assay, a new (4) and three known cyclitol derivatives (1-3) were isolated from the marine sponge Stelletta sp. Norsarcotride A (4) showed significant cytotoxicity against a small panel of five human tumor cell lines.

Two New Sponge Species of the Genus Stelletto (Astrophorida: Ancorinidae) from Korea

  • Sim, Chung-Ja;Kim, Young-A
    • Animal cells and systems
    • /
    • v.7 no.1
    • /
    • pp.25-28
    • /
    • 2003
  • Two new species of the genus Stelletta (Astrophorida: Ancorinidae), S. spinulosa n. sp. and S. calyx n. sp., are described from the waters around Gageodo Island (Sohuksando) and Ulleungdo Island, Korea. S. spinulosa n. sp. is similar to S. crassispicula (Sollas, 1886) in the feature of entire animal, but differs from it in the shape of orthotriaene and the form and size of oxyasters. S. calyx n. sp. resembles to S. crater Dendy, 1924 in the shape of sponge, but the new species has four size categories of oxyaster whereas S. carter has no oxyaster.