A new record of the brittle star, Amphistigma minuta (Ophiuroidea: Amphilepidida: Amphiuridae), from Jeju Island, Korea
Lee, T.; Shin, S. (2019). A new record of the brittle star, Amphistigma minuta (Ophiuroidea: Amphilepidida: Amphiuridae), from Jeju Island, Korea. Anim. Syst. Evol. Divers. 35(2): 84-90. https://dx.doi.org/10.5635/ASED.2019.35.2.011
In: Animal Systematics, Evolution and Diversity. Korean Society of Systematic Zoology: Seoul. ISSN 2234-6953, more
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| Keywords |
Classification > Taxonomy
Morphology
Echinodermata [WoRMS]; Ophiuroidea [WoRMS]
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| Author keywords |
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| Abstract |
The brittle star, Amphistigma minuta H.L. Clark, 1938, was collected from Munseom Island, Jeju-do, Korea, by SCUBA diving. This species has distinct morphological features, as follows: a small disk with large papillae on the disk margin; slender arms and four arm spines at proximal; and oral parts the same as those of the genus Amphipholis. Additionally, we obtained partial sequences of the cytochrome c oxidase subunit I gene (COI) (513 bp) and compared them with sequences from Australian A. minuta and 13 other species of Amphiuridae. As a result, intraspecific pairwise distance was 0.4% between two Korean individuals and intraspecific distance between the Australian and the Korean populations was 2.6-2.8%, which indicates they should be considered as the same species. Ultimately, 15 species of the family Amphiuridae have currently been recorded in Korea, including A. minuta. |
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