The white-tailed dunnart(Sminthopsis granulipes), also known as the ash-grey dunnart, is a dunnart native to Australia. It has an average body length of 126–168 mm (5.0–6.6 in), a snout to anus length of 70–100 mm, a tail measurement of 56–68 mm and a weight which varies between 18 and 35 grams (0.6 and 1.2 oz). The tail is often swollen at the base with brown near anus to white at the tip.