Two specimens of Facelina bostoniensis
Many cerata are between 33% and 50% of the body length and are held loosely at various angles. Poorly defined clumps are obscured by overlapping.
Blue iridescence on dorsal line of tail and some on oral tentacles, but none on cerata.
Streak or some spots of white pigment between and in front of rhinophores.
Lengths 15 mm. & 9.8 mm Outer Hebrides, Scotland. April 2018. Leg. D. McKay & S. Taylor.