Sicklefin Devil Ray

The Sicklefin Devil Ray (Mobula tarapacana) is a large pelagic fish that can reach a disc width, or wingspan, of up to 3.5 meters (about 11.5 feet). It is one of the larger species within the devil ray family, though it is smaller than the giant oceanic manta ray. Despite their massive size, they are completely harmless to humans, feeding primarily on plankton.

Sicklefin Devil Rays are found in tropical and subtropical oceans across the globe. They are a pelagic species, meaning they live in the open ocean rather than near the sea floor. They are highly migratory and often travel in large groups, frequently frequenting offshore seamounts and oceanic islands.

The most distinguishing feature of the Sicklefin Devil Ray is its notably pointed, backward-curving pectoral fins, which give it a distinct 'sickle' shape. Unlike the giant oceanic manta ray, which has distinct 'horns' (cephalic fins) that curl into a spiral, the devil ray's head is less prominent. They also tend to be darker in coloration on their dorsal side.

Yes, the Sicklefin Devil Ray is currently classified as an endangered species by the IUCN Red List. Their populations are declining primarily due to unintentional bycatch in commercial fishing nets, such as tuna purse seines. Because they have slow reproductive rates, they are highly vulnerable to population depletion.