ray
Reef manta ray.
Mobula alfredi · also: Inshore manta, Coastal manta
A gentle, plankton-sweeping giant with a wingspan reaching ~4.5 m and the largest brain-to-body ratio of any fish — it can even recognise itself in a mirror. Each individual carries a unique belly-spot "fingerprint", which is how the Maldives' long-running ID database tracks thousands of named animals. They gather in feeding aggregations and visit reef cleaning stations daily.
Size
Up to ~3.5 m disc width
Weight
Up to ~700 kg.
Diet
Zooplankton, filtered from the water column.
Lifespan
At least ~40 years (likely longer).
Depth
Surface to ~120 m; dives recorded beyond 300 m.
Reproduction
Live-bearing; usually a single pup only once every 2–5 years, gestation ~12–13 months.
Snorkel or dive
Snorkel + dive
Best season
SW monsoon May–Nov; Hanifaru peak Jul–Sep
Conservation
Vulnerable
How to recognise it
Y/V-shaped pale shoulder markings that blend into the dark back; belly spots between the gills.
Behaviour
Filter-feeds on zooplankton, often in coordinated feeding chains; visits reef cleaning stations.
Where to see it in the Maldives
Baa Atoll's Hanifaru Bay (world's largest feeding aggregation, snorkel-only), plus cleaning stations atoll-wide.
Recorded at
Atolls
Dive sites
Conservation
Gill-plate fisheries and bycatch, entanglement, boat strikes.
IUCN · Vulnerable
Watch them responsibly
Stay low and still, keep ~3 m distance, never touch, chase, or hover above them at cleaning stations.
Each manta is identified for life by its unique belly-spot pattern, like a fingerprint.
They perform coordinated "chain" and spiralling "cyclone" feeding, looping head-to-tail to trap denser plankton.
Collective noun: a squadron of rays
Want to dive with reef manta ray?
Our Maldives specialists match you to the right atoll, season and resort.
Sightings are typical, not guaranteed — encounters vary with season and conditions.