Reasoning recorded at review

• •Video resolves a pale flabellinid-like aeolid with clustered cerata
• •Cerata are predominantly white with coloured subapical pigment
• •Long oral tentacles and papillate rhinophores are consistent with Samla
• •Overall bicolor morph matches the traditional field concept

Alternatives considered

• One of five Samla bicolor molecular groups

  Why plausible: The current four-marker revision recovered five groups under the traditional name

  Comparison: A specimen and DNA are required to assign a lineage

• Other flabellinid-like aeolid

  Why plausible: Motion blur and pale exposure suppress several colour characters

  Comparison: Sharp stills of rhinophores and cerata plus specimen characters are needed