江魟屬（學名：Potamotrygon）是燕魟目江魟科的四個屬之一，只生活在南美洲的淡水環境。
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由於本屬物種的外型獨特，所以有些人用來作水族箱的觀賞魚之用。其他屬的物種亦有在交易之列，但數量較少。
本屬現時已被命名的物種如下[1][2][3]：
- 阿達馬斯托江魟 Potamotrygon adamastor
- 塔帕若斯江魟 Potamotrygon albimaculata de Carvalho. 2016[4]
- 阿曼達氏江魟 Potamotrygon amandae Loboda & M. R. de Carvalho, 2013[2]
- 亞馬遜江魟 Potamotrygon amazona
- 貝氏江魟 Potamotrygon boesemani Rosa, M. R. de Carvalho & Almeida Wanderley, 2008 (Emperor ray) [5]
- 短尾江魟 Potamotrygon brachyura (Günther, 1880) (Short-tailed river stingray)
- 密星江魟 Potamotrygon constellata (Vaillant, 1880) (Thorny river stingray)
- 福氏江魟 Potamotrygon falkneri Castex & Maciel, 1963） (Largespot river stingray)
- 加曼氏江魟 Potamotrygon garmani
- 亨利江魟 Potamotrygon henlei (Castelnau, 1855) (Bigtooth river stingray)
- 多棘江魟 Potamotrygon histrix (J. P. Müller & Henle, 1834)） (Porcupine river stingray)
- 玫肩江魟 Potamotrygon humerosa Garman, 1913
- 珍珠江魟 Potamotrygon jabuti de Carvalho. 2016[4]
- 利氏江魟 Potamotrygon leopoldi Castex & Castello, 1970 (White-blotched river stingray)
- 利馬江魟 Potamotrygon limai Fontenelle, J. P. C. B. da Silva & M. R. de Carvalho, 2014）[3]
- 馬氏江魟 Potamotrygon magdalenae (A. H. A. Duméril, 1865)）(Magdalena river stingray)
- 瑪麗娜江魟 Potamotrygon marinae Deynat, 2006
- 馬克西江魟 Potamotrygon marquesi
- 南美江魟 Potamotrygon motoro (J. P. Müller & Henle, 1841)）(Ocellate river stingray)
- 紅斑江魟 Potamotrygon ocellata (Engelhardt, 1912) (Red-blotched river stingray)
- 奧氏江魟 Potamotrygon orbignyi (Castelnau, 1855)）(Smooth back river stingray)[6]
- 潘塔納爾江魟 Potamotrygon pantanensis Loboda & M. R. de Carvalho, 2013[2]
- 大江魟 Potamotrygon rex de Carvalho, 2016[7]
- 施羅德江魟 Potamotrygon schroederi Fernández-Yépez, 1958 (Rosette river stingray)
- 舒氏江魟 Potamotrygon schuhmacheri Castex, 1964 (Parana River stingray)
- 銼棘江魟 Potamotrygon scobina Garman, 1913 (Raspy river stingray)[8]
- 巴西江魟 Potamotrygon signata Garman, 1913 (Parnaiba River stingray)
- 塔氏江魟 Potamotrygon tatianae J. P. C. B. da Silva & M. R. de Carvalho, 2011
- 虎紋江魟 Potamotrygon tigrina M. R. de Carvalho, Sabaj Pérez & Lovejoy, 2011 (Tiger ray) [9]
- 庫魯姆江魟 Potamotrygon wallacei Carvalho, Rosa & Araújo, 2016 [10]
- 耶氏江魟 Potamotrygon yepezi Castex & Castello, 1970）(Maracaibo River stingray)
Marcelo R. de Carvalho. 2016. Description of Two Extraordinary New Species of Freshwater Stingrays of the Genus Potamotrygon endemic to the rio Tapajós Basin, Brazil (Chondrichthyes: Potamotrygonidae), with Notes on Other Tapajós Stingrays. Zootaxa. 4167(1): 1–63. DOI: 10.11646/zootaxa.4167.1.1
Rosa, de Carvalho & Wanderley. Potamotrygon boesemani (Chondrichthyes: Myliobatiformes: Potamotrygonidae), a new species of Neotropical freshwater stingray from Surinam. Neotropical Ichthyology. 2008, 6 (1): 1–8.
Silva, João P. C. B. D. and Marcelo R. de Carvalho. 2015. Systematics and Morphology of Potamotrygon orbignyi (Castelnau, 1855) and allied forms (Chondrichthyes: Myliobatiformes: Potamotrygonidae). Zootaxa. 3982(1): 1–82. DOI: 10.11646/zootaxa.3982.1.1
Marcelo R. de Carvalho. 2016. Potamotrygon rex, A New Species of Neotropical Freshwater Stingray (Chondrichthyes: Potamotrygonidae) from the middle and upper rio Tocantins, Brazil, closely allied to Potamotrygon henlei (Castelnau, 1855). Zootaxa. 4150(5); 537–565. DOI: 10.11646/zootaxa.4150.5.2
João Pedro Fontenelle and Marcelo R. de Carvalho. 2017. Systematic Revision of the Potamotrygon scobina Garman, 1913 Species-complex (Chondrichthyes: Myliobatiformes: Potamotrygonidae), with the Description of Three New Freshwater Stingray Species from Brazil and Comments on Their Distribution and Biogeography. Zootaxa. 4310(1); 1–63. DOI: 10.11646/zootaxa.4310.1.1
de Carvalho, Perez & Lovejoy. Potamotyrgon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yepez, 1958 (Chondrichthyes: Potamotrygonidae). Zootaxa. 2011, 2827: 1–30.
Marcelo R. de Carvalho, Ricardo S. Rosa and Maria Lúcia G. de Araújo. 2016. A New Species of Neotropical Freshwater Stingray (Chondrichthyes: Potamotrygonidae) from the Rio Negro, Amazonas, Brazil: the Smallest Species of Potamotrygon. Zootaxa. 4107(4); DOI: 10.11646/zootaxa.4107.4.5
