Sorry don't have a camera yet but wondered if anyone can recomend good site for identifying NZ species.
While diving yesterday, (in Queen Charlotte sound) I saw what I guess is a type of sea slug. It was bright Purple, around 230mm long, head looked like a snail, and had white thick blunt bristles growing from its back sort of like a scalp massage hair brush. Rocky bottom with silt below, about 12 M and temp 17c.
Trev