First Record of Doris verrucosa Linnaeus, 1758 (Mollusca: Heterobranchia: Nudibranchia) in the bay of Tunis, Tunisia (Central Mediterranean)

Recent observations on molluscan assemblages associated with photophilous algae on rocky substrates located in the Rades Basin (Tunis Bay), have showed an established population of the nudibranch mollusc Doris verrucosa Linnaeus, 1758. This species inhabits shallow rocky environments of the western Mediterranean basin, and its presence in Tunisia was doubtful.