Xingu River ray Xingu River ray The Xingu River ray, white-blotched river stingray, or polka-dot stingray ("Potamotrygon leopoldi") is a species of freshwater fish in the family Potamotrygonidae. It is endemic to the Xingu River basin in Brazil and prefers rocky bottoms. It is sometimes kept in aquaria. "P. leopoldi" reaches up to in disc width, in total length and in weight. Females grow larger than males. It is closely related to the similar "P. henlei" from the Tocantins River basin and "P. albimaculata" from the Tapajós River basin. Compared to "P. henlei", "P. leopoldi" is deeper black above and its underparts are
American River, South Australia an early American whaling vessel is dedicated to "Union" s crew. Frank Potts was the first official settler in 1842, before moving to the mainland and establishing the "Bleasdale" vineyard and winery at Langhorne Creek. John Buick, a professional boat builder, built the first house in the town in 1844. It was fashioned out of local stone, pug and sput timber and remained standing until 1985. Somewhat erroneously, the waters of Eastern Cove, upon which the township is located, have been referred to as American River, compounding the illusion that the township is connected in any way with a river.