Aeolidiella sanguinea

Aeolidiella sanguinea is a species of sea slug, an aeolid nudibranch in the family Aeolidiidae.

Distribution
This marine species was described from Innislacken, Roundstone Bay, Ireland. It has been reported from the Atlantic coast of Europe from Scotland south to Portugal and in the Atlantic Ocean off the Azores.

Description
Aeolidiella sanguinea is an aeolidiid nudibranch with a translucent red body and cerata. The rhinophores and oral tentacles are tipped with white. The body attains a length between 30 mm and 45 mm.