Lamarck Island Lamarck Island may refer to: Lamarck Island (Antarctica) 66°40′S 140°2′E / 66.667°S 140.033°E / -66.667; 140.033 Lamarck Island, Western Australia 14°47′03″S 125°01′30″E / 14.78417°S 125.02500°E / -14.78417; 125.02500
