Abstract The present study describes a finding of the demodecid mite Demodex phocidi in the seal Phoca vitulina in the Baltic Sea. This is the first identification in Europe and the second in the world. This is also the first observation of the Demodecidae family in the pinnipeds outside North America. A high density of demodecid mites was observed in the skin of the examined seal, but no symptoms of parasitosis were observed. Our findings also supplement the taxonomic description and morphometry of D. phocidi.

中文翻译：

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来自 Phoca vitulina (Carnivora: Phocidae) 的蠕形螨 (Acariformes: Demodecidae) – 世界上第二次观察和物种描述的补充

摘要 本研究描述了波罗的海海豹 Phoca vitulina 中蠕形螨蠕形螨的发现。这是欧洲首例，全球第二例。这也是首次在北美以外的鳍足类动物中观察到蠕形螨科。在被检查的海豹的皮肤中观察到高密度的蠕形螨，但没有观察到寄生虫病的症状。我们的发现还补充了 D. phocidi 的分类学描述和形态测量学。