Two New Euryspongian Sponges (Dictyoceratida: Dysideidae) from Korea

  • Lee, Kyung-Jin (Department of Biological Science, University of Southern California, Los Angeles) ;
  • Sim, Chung-Ja (Department of Biological Science, College of Life Science and Nano Technology, Hannam University)
  • Published : 2007.05.31


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.


  1. Bergquist, P.R, 1961. The Keratosa (Porifera) collected by the Chatham Islands 1954 Expedition. N. Z. Dept. Sci. Ind. Res. Bull., 139(5): 207-219
  2. Bergquist, P.R., 1995. Dictyoceratida, Dendroceratida and Verongida from the New Caledonia Lagoon (Porifera: Demospongiae). Mem. Queensl. Mus., 38(1): 1-51
  3. Hooper, J.N.A., 1996. Revision of Microcionidae (Porifera: Poeciloscleridae: Demospongiae), with description of Australian species. Mem. Queensl, Mus., 40: 1-626
  4. Cook, S. de C. and P. Bergquist., 2002. Family Dysideidae Gray, 1867. In Hooper J.N.A. and R.W.M. van Soest, eds., Systema Porifera: A Guide to the Classification of Sponges. Kluwer Academic/Plenum Publishers Press, USA, pp. 1061-1066
  5. Lee, K.J. and C.J. Sim, 2005. A new sponge of the genus Smenospongia (Dictyoceratida: Thorectidae) from Gageodo Island, Korea. Integ. Biosci., 9(1): 9-11
  6. Row, R.W.H., 1911. Reports on the marine biology of the Sudanense Red Sea, from collections made by Cyril Crossland, M. AI., B. Sc., F. Z. S. XIX. Report on the sponges collected by Mr. Cyril Crossland in 1904-5. Part II. Non-Calcarea. J. Linn. Soc. Zool., 31(208): 287-400
  7. Sim, C.J. and K.J. Lee, 2002. A new species in the family Irciniidae (Demospongiae: Dictyoceratida) from Korea. Korean J. Biol. Sci., 6(4): 283-285
  8. van Soest, R.W.M., 2005. World list of extant Porifera (web site: ZMA/Intertebrates/Coel/scirep/)