turtle sea slug - pleurobranchus testudinarius

adriatic aegean albania animal aquatic aquatica background beautiful beauty blue capo chromodoris closeup color colorful colourful crete croatia cyprus dive diversity gastropod gastropods greece indonesia invertebrate invertebrates ionian island italy lembeh life location macro malta mamillatus marin marine mediterranean mollusc natural nature noli notaspidea nudibranch nudibranchia ocean oceanographic oceanography opisthobranch photography pink pleurobranchidae pleurobranchoidea pleurobranchus red reef rock scuba sea slug slugs snail snorkeling species sulawesi tropical turtle undersea underwater underwaterphotography water white wild wildlife