Still from video
Nudibranchs are a group of sea slugs characterized by having no shell, thus having their gills exposed. The name in latin, nudibranchia, means precisely that: nudi (nude, exposed) + branchia (gills).
Instead of the protective shell, the nudibranchs use other intricate defense mechanisms and that's one of the reasons they are such an interesting group to study. Not to mention their exquisite appearance.
More info about this species:
www.seaslugforum.net/find/dendhery
hypselodoris.blogspot.com/2011/12/dendrodoris-herytra-val...
35m
Tubercules granuleux, grande taille et grande profondeur.
35m
Tubercules granuleux, grande taille et grande profondeur.
Les choses sont devenues compliquées chez les polyceras ^^'