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A First Record of the Genus Eusynstyela (Ascidiacea: Stolidobranchia: Styelidae) from Korea

  • Seo, Su-Yuan (Natural History Museum, Ewha Womans University) ;
  • Rho, Boon-Jo (Natural History Museum, Ewha Womans University)
  • Received : 2014.06.25
  • Accepted : 2014.08.28
  • Published : 2014.10.31

Abstract

Colonial ascidian, Eusynstyela monotestis (Tokioka, 1953), is newly reported from Korean waters. The specimens of E. monotestis examined in this study were collected at subtidal zone of Beomseom, Munseom, Seopseom and Chagwido in Jeju-do by SCUBA diving. The genus Eusynstyela Michaelsen, 1904 is also new to Korean waters and it is distinct from other genera by having branchial sac with folds, longitudinal stigmata, hermaphrodite gonads on both sides, 1-2 male follicles in each gonad and body wall with endocarps. Eusynstyela monotestis is distinct from other species by having gonad with only single male follicle. In this paper, detailed descriptions and photographs of Eusynstyela monotestis (Tokioka, 1953) are provided.

References

  1. da Rocha RM, Zanata TB, Moreno TR, 2012. Keys for the identification of families and genera of Atlantic shallow water ascidians. Biota Neotropica, 12:1-35.
  2. Gittenberger A, 2014. Eusynstyela monotestis (Tokioka, 1953). In: Shenkar N, Gittenberger A, Lambert G, Rius M, Moreira Da Rocha R, Swalla BJ, Turon X, 2014. Ascidiacea World Database [Internet]. World Register of Marine Species, Accessed 9 May 2014, .
  3. Kott P, 1985. The Australian Ascidiacea, part 1, Phlebobranchia and Stolidobranchia. Memories of the Queensland Museum, 23:1-440.
  4. Rho BJ, 1966. Taxonomy study on the Prochordates from Korea. Korean Culture Research Institute Transactions, 8:209-216.
  5. Rho BJ, 1975. On the classification and the distribution of the marine benthic animals in Korea (3. Ascidians). Journal of Korean Research Institute for Better Living, Ewha Womans University, 15:121-169.
  6. Rho BJ, 1977. Ascidiacea. In: Illustrated encyclopedia of fauna and flora of Korea (Porifera, Hydrozoa and Ascidiacea). Vol. 20 (Ed., Ministry of Education). Samhwa Publishing Co., Seoul, pp. 332-333.
  7. Rho BJ, Cole L, 1999. Metandrocarpa kudoi, a new colonial ascidian (Stolidobranchia, Styelidae) from Korea. Bulletin of Marine Science, 65:151-157.
  8. Rho BJ, Heo MK, 1984. A systematic study on the Ascidians in Korea. Journal of Korean Research Institute for Better Living, Ewha Womans University, 33:99-136.
  9. Rho BJ, Lee JE, 1989. A systematic study on the Ascidians from Cheju Island, Korea. Korean Journal of Systematic Zoology, 5:59-76.
  10. Rho BJ, Lee JE, 1991. A systematic study on the Ascidians in Korea. Korean Journal of Systematic Zoology, 7:195-220.
  11. Rho BJ, Park KS, 1998. Taxonomy of Ascidians from Geojedo Island in Korea. Korean Journal of Systematic Zoology, 14: 173-192.
  12. Tokioka T, 1953. Ascidians of Sagami Bay. Iwanami Shoten, Tokyo, pp. 247-248.