Potamotrygonae
With cartilaginous, slim and discoidal body, it measures 50 cm of diameter, small mouth in ventral position with papila and teeth as a rábula, adapted to crush solid and strong particles. Its tail is as a saw. Internal viviparous fertilization. They can be found in Orinoco and Amazonas Rivers, in sandy or smuddy funds and lagoons.
Potamotrygonae
| SCIENTIFIC NAME | COMMON NAME | NAME IN SPANISH | SIZE | QTY – BAG Double box |
| Potamotrygon orbignyi | Raya orbignyi | Raya orbignyi | 15 – 20 cm | 4 pcs |
| Potamotrygon orbignyi | Raya orbignyi sp. Balack river | Raya orbigny sp. Black river | 15 -20 cm | 4 pcs |
| Potamotrygon schroederi | Raya guacamaya | Raya guacamaya | 15 – 20 cm | 4 pcs |
| Potamotrygon histrix | Raya histrix | Raya histrix | 15 – 20 cm | 6 pcs |
| Potamotrygon magdalenae | Raya river magdalena | Raya river magdalena | 8 – 10 cm | 24 pcs |
| Potamotrygon motoro | Raya motoro | Raya motoro | 16 – 20 cm | 4 pcs |
| Potamotrygon marblet motoro | King marbled motoro | Raya motoro Marbled | 15 – 20 cm | 4 pcs |