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Circular stingaree
The circular stingaree (''Urolophus circularis'') is an uncommon, little-known species of stingray in the family Urolophidae. Endemic to the coastal waters of southwestern Australia, it prefers a rocky and/or vegetated habitat. Reaching in length, this species is characterized by an oval pectoral fin disc bearing a striking dorsal pattern of lighter spots and rings, and a central circle of white-margined black spots, on a bluish gray background. Between its nostrils is a skirt-shaped curtain of skin, with the posterior corners drawn out into lobes. Its tail bears a rather large dorsal fin in front of the stinging spine, and ends in a deep, lance-like caudal fin. Negligibly affected by human activity, the circular stingaree has been listed under Least Concern by the International Union for Conservation of Nature (IUCN).
==Taxonomy==
The first known specimen of the circular stingaree was collected off Carnac Island, near Fremantle, Western Australia. Australian ichthyologist Roland McKay described it in a 1966 issue of the ''Journal of the Royal Society of Western Australia'', giving it the specific epithet ''circularis'' in reference to its shape. Another common name for this species is banded stingray.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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