Black Headshield Slug, Chelidonura inornata, Kimbe Bay, New Britain, Papua New Guinea

headshield slug chelidonura inornata kimbe bay new britain papua new guinea helmetshield slug marine invertebrate nudibranch sea snail sea slug aglajidae black bismarck sea bismarck archipelago pazific south pacific ocean oceania walindi geography nature sea ocean sealife coral triangle underwater no peole one animal full length side view close up horizontal rm