page_title: Potamotrygonidae
section_title: Relationship with humans
hierarchical_section_title: Potamotrygonidae / Relationship with humans
caption_attribution_description: Latina: Potamotrygon motoroFrançais&#160;: Espèce animale&#160;: ... (zoo de Wrocław).English: Animal species: Ocellate river stingray (Wrocław zoo)Polski: Płaszczka Plamista (Ogród Zoologiczny we Wrocławiu)Deutsch: ... (Zoologischer Garten Breslau)
context_page_description: River stingrays or freshwater stingrays are Neotropical freshwater fishes of the family Potamotrygonidae in the order Myliobatiformes, one of the four orders of batoids, cartilaginous fishes related to sharks. They are found in rivers in tropical and subtropical South America. A single marine genus, Styracura, of the tropical West Atlantic and East Pacific are also part of Potamotrygonidae. They are generally brownish, greyish or black, often with a mottled, speckled or spotted pattern, have disc widths ranging from 31 to 200 centimetres and venomous tail stingers. River stingrays feed on a wide range of smaller animals and the females give birth to live young. There are more than 35 species in five genera.
caption: When buried in the sand, stingrays such as this Potamotrygon motoro are barely visible (eye center-right on photo) and easily stepped on
exif: {"Image ImageDescription": "", "Image Make": "SONY", "Image Model": "DSC-H5", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "GIMP 2.10.4", "Image DateTime": "2018:10:22 18:27:20", "Image YCbCrPositioning": "Co-sited", "Image ExifOffset": "280", "Image PrintIM": "[80, 114, 105, 110, 116, 73, 77, 0, 48, 51, 48, 48, 0, 0, 2, 0, 2, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0]", "EXIF ExposureTime": "1/15", "EXIF FNumber": "14/5", "EXIF ExposureProgram": "Program Normal", "EXIF ISOSpeedRatings": "320", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2007:11:25 11:43:40", "EXIF DateTimeDigitized": "2007:11:25 11:43:40", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "8", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "3", "EXIF MeteringMode": "Pattern", "EXIF LightSource": "Unknown", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "6", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2592", "EXIF ExifImageLength": "1944", "EXIF FileSource": "Digital Camera", "EXIF SceneType": "Directly Photographed", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF SceneCaptureType": "Standard", "EXIF Contrast": "Normal", "EXIF Saturation": "Normal", "EXIF Sharpness": "Normal"}