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

  • Kim, Young A (Natural History Museum, Hannam University) ;
  • Lee, Kyung Jin (Animal Resources Division, National Institute of Biological Resources) ;
  • Sim, Chung Ja (Department of Biological Sciences and Biotechnology, Hannam University)
  • Received : 2020.04.06
  • Accepted : 2020.05.01
  • Published : 2020.05.31


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.


  1. Baar, R. 1904. Hornschwamme aus dem Pacific. Ergebnisse einer Reise nach dem Pacific, Schauinsland 1896/97. Zoologische Jahrbucher Abteilung Systematik, Geographie und Biologie der Thiere 19:27-36.
  2. Cook, S.deC. and P.R. Bergquist. 2000. Two new genera and five new species of the 'Cacospongia' group (Porifera, Demospongiae, Dictyoceratida). Zoosystema 22(2):383-400.
  3. Cook, S.deC. and P.R. Bergquist. 2002. Family Threctidae Bergquist, 1978. In: J.N.A. Hooper and R.W.M. Van Soest (eds.), Systema Porifera. A guide to the classification of sponges. Kluwer Academic/Plenum Publishers: New York, Boston, Dordrecht, London, Moscow. pp. 1028-1050.
  4. De Laubenfels, M.W. 1934. New sponges from the Puerto Rican deep. Smithsonian Miscellaneous Collections 91(17):1-28.
  5. De Laubenfels, M.W. 1954. The sponges of the West-Central Pacific. Oregon State Monographs. Studies in Zoology 7: i-x, 1-306, pls I-XII.
  6. Desqueyroux-Faundez, R. and R.W.M. Van Soest. 1997. Shallow water Demosponges of the Galapagos Islands. Revue suisse de Zoologie 104(2):379-467.
  7. Duchassaing de Fonbressin, P. and G. Michelotti. 1864. Spongiaires de la mer Caraibe. Natuurkundige verhandelingen van de Hollandsche maatschappij der wetenschappen te Haarlem 21(2):1-124, pls I-XXV.
  8. Helmy, T., E.H. Serehy, S.Z. Mohamed and R.W.M. Van Soest. 2004. Description and classification of dictyoceratid sponges from the northern Red Sea. Beaufortia 54(6):81-91.
  9. Kim, H.R. and C.J. Sim. 2009. Two new Spongia species (Dictyoceratida: Spongiidae) from Korea. Animal Cells and Systems 13:141-145.
  10. Lee, K.J. and C.J. Sim. 2005. A new sponge of the genus Smenospongia (Dictyoceratida: Thorectidae) from Gageodo Island, Korea. Integrative Biosciences 9(1):9-11.
  11. Lee, K.J. and C.J. Sim. 2007. Four new species of dictyoceratid sponges (Demospongiae) from Korea. Integrative Biosciences 11(1):55-60.
  12. Levi, C. 1969. Spongiaires du Vema Seamount (Atlantique-Sud). Bulletin du Museum National d'Histoire Naturelle 41(4):952-973.
  13. Pulitzer-Finali, G. 1986. A collection of West Indian Demospongiae (Porifera). In appendix, a list of the Demospongiae hitherto recorded from the West Indies. Annali del Museo civico di storia naturale Giacomo Doria 86:65-216.
  14. Pulitzer-Finali, G. and R. Pronzato. 1981. The Keratosa in a collection of Mediterranean sponges mainly from the Italian coasts. Annali del Museo civico di storia naturale Giacomo Doria 83:127-158.
  15. Sandes, J., G. Muricy and U. Pinheiro. 2016. Thorectinae (Porifera: Demospongiae: Dictyoceratida) from Northeastern Brazil: two new species and transfer of Scalarispongia cincta (Boury-Esnault, 1973) to the genus Thorecta Lendenfeld, 1888. Zootaxa 4184(1):158-170.
  16. Schmidt, O. 1862. Die Spongien des adriatischen Meeres. (Wilhelm Engelmann: Leipzig): i-viii, 1-88, pls 1-7.
  17. Sim, C.J., K.J. Lee and Y.A. Kim. 2016. Twelve new species of two genera Smenospongia and Cacospongia (Demospongia: Dictyoceratida: Thorectidae) from Korea. Journal of Species Research 5(1):31-48.
  18. Thiele, J. 1905. Die Kiesel-und Hornschwamme der Sammlung Plate. Zoologische Jahrbucher Supplement 6 (Fauna Chilensis III) 407-496, pls 27-33.
  19. Wiedenmayer, F. 1977. Shallow-water sponges of the western Bahamas. Experientia Supplementum 28:1-287.