The pumpkin toadlet (Brachycephalus ephippium), or Spix's saddleback toad, is a small and brightly coloured species of frog in the family Brachycephalidae.

This diurnal species is endemic to southeastern Brazil where it is found among leaf litter on the floor of Atlantic rainforests at an altitude of 200–1,250 m (660–4,100 ft).

Although its type specimen supposedly was collected in Bahia about 200 years ago, there are no confirmed localities in this state and recent reviews consider it more likely that it was from Rio de Janeiro.

[1][2] B. ephippium feeds on tiny invertebrates and breeding is by direct development, with the female laying a few eggs on land that hatch into young toadlets (no tadpole stage).

[13] Peculiarly, this species and the closely related red pumpkin toadlet are unable to hear the frequency of their own advertising calls, as their ears are underdeveloped.