Tragulus is a genus of even-toed ungulates in the Tragulidae family that are known as mouse-deer. Tragos refers to a goat in Greek, while –ulus in Latin means 'tiny'. With a weight of 0.7–8.0 kg (1.5–17.6 lb) and a length of 40–75 cm (16–30 in), they are the smallest ungulates in the world, though the largest species of mouse-deer surpass some species of Neotragus antelopes in size.