''Pyrrhulina rachoviana'' is a small species of tropical fish from the family Lebiasinidae named in honor of the German aquarist

Arthur Rachow Arthur is a common male given name of Brythonic origin. Its popularity derives from it being the name of the legendary hero King Arthur. The etymology is disputed. It may derive from the Celtic ''Artos'' meaning “Bear”. Another theory, more wi ...

. The type locality is Rosario, Argentina. A species is sold in the aquarium trade under the name ''Pyrrhulina rachoviana'', but was probably imported from

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

, not

Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...

References

{{Taxonbar, from=Q3754533 Lebiasinidae Freshwater fish of Argentina Fishkeeping Taxa named by George S. Myers Fish described in 1926