Bulls-eye Stingray, Reef stingray, Concentric
Stingray, Spot-on-spot round ray.
Latin Name: Urobatis
Previously classified as
Almost circular oval disc. Dorsum markings consist of dark concentric
rings on a pale background. The outermost ring is often broken into small spots.
The broader central rings are linked by bars forming a bold laterally
symmetrical web pattern.
bays and around rocky reefs. Intertidal to at least 20m.
and distribution: Predominantly found in the
and possibly south to the Galapagos Islands.
In Cabo Pulmo the Bulls-eye Stingray is more frequently observed in the winter.
over sand for worms and crustaceans.
Gravid females exude milk from the wall of the uterus.
The Bullseye stingray shares its range with the
Cortez Round Stingray which is sometimes
identical but usually displays a more broken pattern of spots and blotches, and
the Round Stingray
which has a similar but barely
definable pattern over a network of fine light and dark spots.
to divers: Moves
away upon close approach.
species is commonly encountered while diving and snorkelling over sand or near rocky reefs in the
In March at Cabo Pulmo I encountered the Bullseye stingray on every dive
at around 50ft. On a previous trip during the summer none were present implying
that this ray has at least a minor migration, perhaps into slightly deeper water
where the temperature is more moderate.
diving locations submitted by readers:
and further reading:
Sharks and Rays of the World. Scott W. Michael. Sea Challengers.
Sharks and Rays Ralf M.