Chilean pintail Chilean pintail The Chilean pintail ("Anas georgica spinicauda"), also known as the golden peck duck or brown pintail, is a subspecies of the yellow-billed pintail ("Anas georgica"), a duck in the dabbling duck subfamily Anatinae. Its local names are "pato jergón grande", "pato maicero" and "pato piquidorado" in Spanish, and "marreca-parda" or "marreca-danada" in Portuguese. The Chilean pintail is one of three subspecies of the yellow-billed pintail, and by far the most numerous and widespread. It is found throughout much of South America from extreme southern Colombia southwards to Tierra del Fuego, as well as in the Falkland Islands. The
Chilean mussel be considered either as "M. galloprovincialis" or as a subspecies of it, "Mytilus galloprovincialis chilensis". Others however have recognized several blue mussel species in South America, including native "M. platensis", introduced "M. galloprovincialis" from the Mediterranean, and possibly-introduced "M. planulatus". Using nuclear DNA markers, Borsa et al. (2012) confirmed earlier results from allozymes that most populations in the south of the South American continent indeed represent a native Southern Hemisphere lineage of the blue mussel, for which they suggested to use the subspecies name "Mytilus edulis platensis" (now "M. platensis"). The same authors questioned the earlier identifications of the Montevideo