Coconut Octopus
Amphioctopus marginatus
Sighting evidence at Blue Cave Amami Oshima, Amami Islands
Coconut octopus are common on the sandy substrate around the cave approach, where they cache shells and debris to construct portable shelters. They are highly intelligent and frequently interact with divers, sometimes pausing to observe before jetting away. Night dives around the cave entrance regularly reveal multiple individuals hunting along the reef edge.
Evidence at this site
No confirmed records on file at this site
Coconut Octopus is listed as a curated species here based on historical reports.