What physical feature does the species name ocellatus specifically reference?

Answer

An eyespot marking, though often more pronounced in juveniles.

The specific epithet *ocellatus* used in the scientific name *Anarrhichthys ocellatus* is derived from terminology referring to a distinct visual feature on the fish's body. Specifically, it denotes the presence of an eyespot marking. While this marking is a characteristic feature of the species, the text notes that this eyespot tends to be more distinctly visible or pronounced on juvenile Wolf Eels when compared to fully mature adults, where overall coloration might dominate the appearance.

What physical feature does the species name ocellatus specifically reference?
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