[3] The orange-headed Pilbara planigale has a maximum recorded body weight of 12.5 g (0.44 oz) and snout–vent length of 74 mm (2.9 in) for males.

Females tend to be slightly smaller than males, with a maximum weight of 9.5 g (0.34 oz) and snout–vent length 69 mm (2.7 in).

[3] Like all planigales, it is carnivorous, living on invertebrates and small vertebrates which they catch by energetic nocturnal hunting through leaf litter and in soil cracks.

By night, planigales are active and fearless hunters, preying mostly on insects and their larvae, small lizards, and young mammals almost as large as itself.

[4] Females with poorly developed pouches and up to 12 button nipples have been collected from April to August.