[1] Chiasmocleis antenori is named for Antenor Leitão de Carvalho.

The outermost fingers are rudimentary (some consider the first one to be absent[4]); the remaining ones are bluntly rounded at the tips and have fleshy margins.

Only four toes are evident; they bear small but distinct disks at the tips.

[2][4] Chiasmocleis antenori occurs in both primary and secondary tropical moist forest (terra firme and flooded) at elevations of 200–1,740 m (660–5,710 ft) above sea level.

It is an uncommon species that can be locally threatened by habitat loss (including collection of bromeliads), but has an extensive range, occurs in several protected areas, and is not considered threatened overall.