The whitish hagfish, Eptatretus albiderma sp. nov., was collected from the northeast Sea of Vietnam (Da Nang). This new species possesses six pairs of gill apertures, three multicusps, 18–21 prebranchial slime pores, absent or one branchial slime pore, and whitish to pinkish body color. Eptatretus albiderma sp. nov. can be readily distinguished from Eptatretus atami (Dean, 1904) and Eptatretus sheni (Kuo, Huang & Mok, 1994) by the numbers of total cusps (41–43 vs. 47–52 in E. atami vs. 48–53 in E. sheni), body color (whitish vs. darkish in E. atami vs. dark brown dorsally, lighter ventrally in E. sheni), eyespots (absent or faint vs. prominent in E. sheni), and total slime pores (74–78 vs. 71–78 in E. atami vs. 62–74 in E. sheni). The new species is clearly distinguished from E. atami by 0.026 pairwise genetic distance (d) of phylogeny based on mtDNA COI. We herein offer the key to 17 species of the genus Eptatretus Cloquet, 1819 in East Asia.

中文翻译：

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一种新的ha鱼，Eptatretus albiderma sp。十一月 （Agnatha：Myxinidae），来自越南，具有东亚地区红Ep物种的钥匙

白色的白g鱼，Eptatretus albiderma sp.。十一月，是从越南东北海（岘港）采集的。这个新物种具有六对g孔，三个尖瓣，18-21个分支前的粘液孔，不存在或一个分支的粘液孔，以及白色至粉红色的体色。Eptatretus albiderma SP。十一月 可以很容易地区别于Eptatretus热海（迪安，1904）和Eptatretus sheni（郭，黄及莫，1994）由总尖（41-43与47-52的数目在E.热海与48-53中ë 。sheni），身体颜色（E. atami中的发白vs.深色与Es sheni的背面背黑褐色，腹侧较亮）），眼点（在E. sheni中不存在或模糊不清或突出）和总的粘液毛孔（E. atami中为74-78对71-78，而E. sheni中为62-74 ）。通过基于mtDNA COI的系统发育对成对遗传距离（d），可以将新物种与热海E.ami区别开来。我们在此提供了东亚1819年Eptatretus Cloquet属17种的关键。