| Ref. No. | Title |
|---|---|
| 40302 | Potamotrygon yepezi, n. sp. (Condrichthyes, [sic] Potamotrygonidae), a new species of freshwater sting-ray from Venezuelan rivers. |
| 40303 | Potamotrygon leopoldi, a new species of freshwater sting-ray for the Xingú River, Brazil (Chondrichthyes, Potamotrygonidae). |