I think its Chromooris sp 3 accordingto the nudibrach and seaslug quide 2nd edition or aMagnificent Chromodoris (Chromodoris magnifica) variation
norbert this is a Willan's Chromodoris (Chromodoris willani)
fimbriated moray Gymnothorax fimbriatus moray
Thanks the link to the seaslug forum is intrestring It looks indeed like a copepod
head shield slug Chelidonura pallida