The Hortle's whipray (Pateobatis hortlei) is a little-known species of stingray in the family Dasyatidae, occurring in shallow estuaries and mud flats off southern New Guinea.

This species, growing to 71 cm (28 in) across, has a heart-shaped pectoral fin disc with a long, pointed snout and minute eyes.

The underside of the disc is a distinctive bright yellow in color, sometimes with darker markings around the nostrils, mouth, and gill slits.

[1] The pectoral fin disc of the Hortle's whipray is heart-shaped and slightly longer than wide; the anterior margins are concave and converge on a highly elongated, narrowly triangular snout.

The underside is distinctively bright yellow, with a thin dark border around the disc margin and sometimes darker blotches around the nostrils, mouth, and gill slits.

[3] Reproduction is aplacental viviparous, with the females supplying their developing embryos with histotroph ("uterine milk"); the young are born at under 20 cm (7.9 in) across.

While the Hortle's whipray remains common within its small range, the International Union for Conservation of Nature (IUCN) believes these factors have led to a population decline, and has assessed it as Near Threatened.