Order Rajiformes

Family Triakidae

Mustelus schmitti

Erpocotyle schmitti (AR)

Family Dasyatidae

Dasyatis guttata

Monocotyle guttatae (BR) Family Potamotrygonidae

Paratrygon aiereba

Potamotrygonocotyle aramasae (BR) Potamotrygon brachyura

Potamotrygonocotyle uruguayensis (BR) Potamotrygon castexi

Potamotrygonocotyle eurypotamoxenus (BR) Potamotrygon falkneri

Potamotrygonocotyle eurypotamoxenus (BR) Potamotrygon hystrix

Potamotrygonocotyle eurypotamoxenus (BR) Potamotrygon motoro

Potamotrygonocotyle chisholmae (AR, BR)

Potamotrygonocotyle dromedarius (BR)

Potamotrygonocotyle eurypotamoxenus (AR, BR)

Potamotrygon schroederi

Potamotrygonocotyle rarum (BR) Potamotrygon sp.

Potamotrygonocotyle quadracotyle (BR)

Potamotrygonocotyle rionegrense (BR)

Potamotrygonocotyle umbrella (BR) Family Rhinobatidae

Rhinobatos planiceps

Rhinobatonchocotyle cyclovaginatus (PE)