Xingu River ray mostly brownish-dusky (large white center to underparts of "P. henlei"). Compared to "P. albimaculata", "P. leopoldi" has fewer and larger yellowish-white spots above. 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
American River, South Australia fuel facilities. Recently however, the advent of oyster farming has seen new shedding erected and increased activity, in harmony with recreational boating activities. The population has increased steadily in recent years, while nearby hamlets in the vicinity of Eastern Cove, such as Island Beach and Baudin Beach, South Australia have become more prominent. Electricity supply to American River was only made permanent in 1967. The establishment of guest houses at American River in the early part of the last century were the forerunner of today's tourism industry on Kangaroo Island. Ryberg, Lierich, and Linnett, are names synonymous with the development