Alcyonidium diaphanum (Hudson, 1778)
Sea chervil - Bruine zeevinger
Westhinder - Oosthinder bank, North Sea - Belgium*, 16-8-2023. In vitro photo, L: 68 mm, 23-8-2023. With (not originally) attached Actinothoe sphyrodeta.
* Collected with the VLIZ research vessel RV Simon Stevin, beam trawl track 1, coordinates: start 51° 30.360’ N – 2° 39.047’ E - stop 51° 31.539’ N – 2° 39.384’ E