The bullseye round stingray (''Urobatis concentricus''), also known as the reticulated round ray, or spot-on-spot round ray, is a species of

cartilaginous fish Chondrichthyes (; ) is a class that contains the cartilaginous fishes that have skeletons primarily composed of cartilage. They can be contrasted with the Osteichthyes or ''bony fishes'', which have skeletons primarily composed of bone tissue ...

in the family

Urotrygonidae Urotrygonidae is a family of rays in the order Myliobatiformes, commonly referred to as the American round stingrays or round rays. They are native to the tropical and warm temperate marine waters of the Americas. The two genera in this family ...

. It is endemic to Mexico. Its natural habitats are shallow seas, subtidal aquatic beds, coral reefs,

estuarine An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environment ...

waters, intertidal marshes, and coastal saline lagoons. It is threatened by habitat loss.

Description

''Urobatis concentricus'' can be characterized by a light brown dorsal region with whitish spots or patches around the pectoral fins and dorsum. They are separated from other ''Urobatis'' species by their pupillary operculum used to cover their eye, and their two dark lines presented in

concentric In geometry, two or more objects are said to be concentric, coaxal, or coaxial when they share the same center or axis. Circles, regular polygons and regular polyhedra, and spheres may be concentric to one another (sharing the same center point ...

rows. The bullseye stingray is venomous, as their tail contains a spine normally around 27 - 30 mm in length.

Feeding Behavior

The reef stingray normally feeds on small teleost fish and

benthic The benthic zone is the ecological region at the lowest level of a body of water such as an ocean, lake, or stream, including the sediment surface and some sub-surface layers. The name comes from ancient Greek, βένθος (bénthos), meaning "t ...

crustaceans and is predated by sharks and other, larger rays. As of 2019, the species is listed as least concern on the

IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

red list.https://fishbase.mnhn.fr/summary/SpeciesSummary.php?id=13274&AT=random

References

External links

bullseye round stingray The bullseye round stingray (''Urobatis concentricus''), also known as the reticulated round ray, or spot-on-spot round ray, is a species of cartilaginous fish in the family Urotrygonidae. It is endemic to Mexico. Its natural habitats are shall ...

Fish of the Gulf of California Fish of Mexican Pacific coast

Taxonomy articles created by Polbot {{Rajiformes-stub