kirsten118's picture

Sea Hare?

Observed: 18th July 2012 By: kirsten118
Sea Hare?
Description:

There were 3 or 4 of these in a rock pool I was surveying off of east Devon, not sure what it is but left a purple trail. It's approx 20cm long

Identifications
Species interactions

No interactions present.

Comments

Nick Upton's picture

Sea hare

Almost certainly Aplysia punctata, the commonest UK species by far, up to 20cms but I've mostly seen them more like 8-12cms. Aplysia species are known for defensive purple dye emissions and punctata comes in various colour forms including chocolate brown. A. depilans and fasciata are very rare visitors from more southerly water and can be much bigger. Maybe can't be ruled out from this pic as their colour forms vary too and can be all dark, but are unlikely.

Nick Upton, naturalist and photographer.