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 nearby Muston publicises access via an alternative, private air strip. American River, South Australia American River is a town in the Australian state of South Australia located on the western shore of Eastern Cove on Kangaroo Island. The area now known as American River was first visited by Europeans in 1802 when Matthew Flinders landed to survey this part of Kangaroo Island. In 1803, a group of American sealers camped for four months in the area. They arrived on the brig and built their own 35 ton schooner "Independence" from local timber. The town takes its name from this time.