(Chromodoris annae) Nudibranch with brilliant blue and yellow skirt and orange tentacles, Mabul, Borneo, Malaysia, South China Sea

underwater seaslug sea slug seaslugs sea slugs chromodoris annae nudibranch nudibranches blue yellow skirt orange tentacles tentacle tentacles one animal close up close ups close up close ups mabul borneo malaysia south china sea coral corals coral reef