About Jorunna tomentosa (Cuvier, 1804)
Jorunna tomentosa is a species of sea slug, specifically a dorid nudibranch. It is a shell-less marine gastropod mollusc that belongs to the family Discodorididae. This species is found in European waters, ranging from Norway to Portugal, and also lives in the Mediterranean Sea. It has additionally been reported from South Africa and Tristan da Cunha.