First record of Octopus longispadiceus (Cephalopoda: Octopodidae) from Korea
Jong Bin Kim, Jae-Hyeong Yang and Soo Jeong Lee
East Sea Fisheries Research Institute, National Institute of Fisheries Science, Gangneung, 25435, Korea.
Fifty-five specimens of Octopus longispadiceus, belonging to the family Octopodidae, were collected for the first time from the East Sea of Korea and identified by DNA barcoding. This species is characterized by its long right third arm and ligula, the presence of enlarged suckers in the mature male, small white spots on the mantle, head, and arms, and no cirrus above the eye. A molecular analysis of the partial cytochrome c oxidase subunit I gene showed that these specimens are all the same species and have the smallest genetic distance with O. longispadiceus (Kimura- two-parameter distance = 0.002-0.003). A new Korean name, “Bal-mun-eo” is proposed for this species.
  
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