Key Identification Features
- Its entire body is covered in long, fleshy, pointed papillae, giving it a distinctly fluffy appearance.
- A distinctive ring of up to nine gills sits at the posterior end of the nudibranch.
- Many authors previously classified Acanthodoris atrogriseata as a synonym of Acanthodoris pilosa, but molecular phylogeny studies have confirmed it is a separate, distinct species.
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