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A new species of hagfish, Eptatretus wandoensis sp. nov. (Agnatha, Myxinidae), from the southwestern Sea of Korea.


ABSTRACT: Four specimens of the five-gilled white mid-dorsal line hagfish, Eptatretus wandoensis sp. nov. were recently collected from the southwestern Sea of Korea (Wando). This new species has five pairs of gill apertures, 14-18 prebranchial slime pores, 4 branchial slime pores, a dark brown back with a white mid-dorsal line and a white belly. These hagfish are similar to Eptatretus burgeri and Eptatretus minor in having a white mid-dorsal line, but can be readily distinguished by the numbers of gill apertures (5 vs. 6-7), gill pouches (5 vs. 6), and prebranchial slime pores (14-18 vs. > 18), as well as the body color (dark brown back vs. gray or brown pale). In terms of genetic differences, Eptatretus wandoensis could be clearly distinguished from E. burgeri (0.9% in 16S rRNA and 8.5% in cytochrome c oxidase subunit I sequences) and E. minor (4.5% and 13.9%).

SUBMITTER: Song YS 

PROVIDER: S-EPMC7170979 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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A new species of hagfish, <i>Eptatretus wandoensis</i> sp. nov. (Agnatha, Myxinidae), from the southwestern Sea of Korea.

Song Young Sun YS   Kim Jin-Koo JK  

ZooKeys 20200413


Four specimens of the five-gilled white mid-dorsal line hagfish, <i>Eptatretus wandoensis</i> <b>sp. nov.</b> were recently collected from the southwestern Sea of Korea (Wando). This new species has five pairs of gill apertures, 14-18 prebranchial slime pores, 4 branchial slime pores, a dark brown back with a white mid-dorsal line and a white belly. These hagfish are similar to <i>Eptatretus burgeri</i> and <i>Eptatretus minor</i> in having a white mid-dorsal line, but can be readily distinguish  ...[more]

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