"Potamotrygonidae Garman, 1877" . . "Potamotrygonidae" . _:b76661300 "WoRMS id" . . _:b76661300 . _:b75862867 . _:b76661300 . . . . . . . "148834" . . _:b76661300 "148834" . _:b76661300 . "419366" . "2191" . "Potamotrygonidae" . _:b75862867 "GBIF id" . _:b75862867 . _:b75862867 "2191" . "Garman, 1877" . "Potamotrygonidae" . _:b75862867 . .