This gives individuals the appearance of having a "naked back" due to the lack of fur on their wings.

The larger of the two species of naked-backed bat, individuals weigh 12–16 g (0.42–0.56 oz) and have a forearm length of 49–56 mm (1.9–2.2 in).

The ears are pointed with a smooth edge, and the nose has a flattened, plate-like shape with small warty tubercles over the nostrils and short spikes to either side.

[5] Big naked-backed bats are found from southeastern Mexico through the whole of Central America and into Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, and Venezuela.

Mothers give birth to a single, naked, young which is initially raised in a maternity roost that may be shared with other closely related species.