Victor et Desirée FALZON le 25/06/21
I found what I thought was an alga growing at 0.5m depth. From the photo I realise it's an animal, though not sure which. Any ideas please? Thank you.
Victor et Desirée FALZON le 26/06/21
Merci beaucoup!
Frédéric ANDRÉ le 25/06/21
Probablement le bryozoaire spaghetti Amathia verticillata (delle Chiaje, 1822), https://doris.ffessm.fr/ref/specie/520