The brown whipray (Maculabatis toshi) is a species of stingray in the family Dasyatidae, common in inshore, muddy habitats along the northern coast of Australia.

Reproduction is aplacental viviparous; females produce litters of 1–2 young and supply them with histotroph ("uterine milk") during gestation.

The International Union for Conservation of Nature (IUCN) has listed the brown whipray under Least Concern because most of its range lies within Australian waters, where it is caught by prawn trawlers but at only minimal levels since the mandatory installation of bycatch reduction devices.

[2] Gilbert Percy Whitley came to recognize the specimen as a distinct species and described it in a 1939 issue of Australian Zoologist, naming it in honor of Queensland marine biologist James Tosh.

[4] In 2004, Mabel Manjaji grouped the brown whipray with H. fai, M. gerrardi, H. jenkinsii, H. leoparda, H. uarnak, and H. undulata in the 'uarnak' species complex.

There is a band of small, dense, heart-shaped dermal denticles extending from between the eyes to the tail, becoming larger in a midline row before and after the sting.

[4][6] The brown whipray is found off northern Australia from Shark Bay to the Clarence River, though it has not been reported from the southeastern extent of its range for some time.

[10] Like other stingrays, the brown whipray is aplacental viviparous, with the developing embryos being sustained to term by histotroph ("uterine milk") produced by their mother.

[7][11] Fairly common within its range, the brown whipray is regularly caught by intensive bottom trawl and beach seine fisheries operating in the Arafura Sea.

As most of the brown whipray's range lies within Australian waters, where it is now minimally threatened by human activity, the International Union for Conservation of Nature (IUCN) has listed it under Least Concern.