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A New Record of Hydrodendron stechowi (Hydrozoa: Leptothecata: Phylactothecidae) from Korea

  • Jeong, Seung-Chan (Department of Life Science, Woosuk University) ;
  • Lee, Seung-Joon (Department of Life Science, Woosuk University) ;
  • Cho, In-Young (National Marine Biodiversity Institute of Korea) ;
  • Hwang, Sung-Jin (Department of Life Science, Woosuk University)
  • Received : 2021.10.18
  • Accepted : 2021.10.21
  • Published : 2021.10.31

Abstract

In 2020, during a survey of cnidarian fauna around Chuja-do locating in the northern part of Jeju-do, Korea, several hydroids were collected from the subtidal zone by SCUBA diving. Through taxonomic examination, one unrecorded species, Hydrodendron stechowi Hirohito, 1995, was found in Korea. It was newly added to the list of Korean hydrozoan fauna. This species was discovered for the first time since its first report as a new species in Japan. Their vivid orange-colored colonies were attached to the sponge on rocky substrate between depths of 15 and 20 m. Thus, a total of five species belonging to genus Hydrodendron, including the species reported in this study, have been reported in Korean waters so far.

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