Bobtail squid
Euprymna berryi
Sighting evidence at Walking Shark Bay, Halmahera
Tiny, round-bodied cephalopods barely 3 cm long, bobtail squid are nocturnal hunters that bury in the sand by day and emerge at night to pursue amphipods and small shrimp. They maintain a symbiotic bioluminescent bacterium in their light organs that matches the intensity of moonlight hitting the seabed from above, allowing them to eliminate their own shadow and hide from predators below. At Walking Shark Bay, night dives reveal dozens of individuals emerging simultaneously, their eyes glowing amber in torchlight before they disappear in a cloud of ink.
Evidence at this site
No confirmed records on file at this site
Bobtail squid is listed as a curated species here based on historical reports.