Cooper originally described the round stingray in 1863 as
Urolophus halleri. This name was changed that same year to the
currently valid Urobatis halleri (Cooper, 1863). The genus name
Urobatis is derived from the Greek "oura" meaning tail and
"batis" meaning a ray. Synonyms referring to this species in
past scientific literature include Urolophus nebulosus Garman
1885 and Urolophus umbrifer Jordan & Starks 1895. Common names
in the English language include round stingray, little round
stingray, and Haller's round ray. Other common names are
ignelivatoz (Turkish), pastinaca (Italian), peitschenrochen
(German), pigrokke (Danish), pilrokke (Norwegian), raie ronde de
Haller ( French), raya (Spanish), raya de espina (Spanish), raya
redonda de Haller (Spanish), ronde doornog (Dutch), sálahi
trygéna (Greek), siba zutulja (Serbian), stechrochen (German),
stingrocka (Swedish), trigono (Italian), trygon kolisty
(Polish), and volina (Serbian). The round stingray is found in
the eastern Pacific Ocean from Eureka in nort