Species profile · Last reviewed 22 August 2026
Alatina alata is a slender, oceanic box jellyfish best known for a remarkable habit: in some locations, adults gather near shore on a predictable schedule around the lunar cycle. Those events have given researchers rare access to an animal that otherwise spends much of its life beyond easy observation.
Appearance
The bell is taller than it is wide, with one tentacle emerging from each corner. Its transparent body can be almost invisible against open water. Fine anatomical features and DNA are needed to separate Alatina species and historical names reliably.
Lunar spawning aggregations
Well-studied populations have appeared close to shore on nights linked to a particular moon phase, allowing observation of spawning and collection. This does not mean every Alatina population follows an identical date, or that a moon calendar alone predicts sting risk at an unfamiliar beach.
Range and taxonomic caution
Alatina has been reported widely in tropical and subtropical waters, including Hawaii and the Caribbean. Older records may use different combinations of names, and wide distributions deserve molecular checking. We treat a locality as verified only when it is supported by current taxonomic work.
Stings
Contact can be painful and may require medical assessment, particularly if symptoms extend beyond the skin. Severity varies with exposure and individual response. Do not deliberately enter an aggregation or handle stranded animals.
Why scientists value this species
Predictable access has supported work on reproduction, population connectivity, anatomy and evolution. It also provides a clean lesson in scale: a striking local rhythm can be real without becoming a universal rule for all box jellyfish.
Sources
Review and corrections
See an error or outdated source? Read our corrections process. Safety information is educational and does not replace local emergency services or clinical advice.
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