Corynorhinus rafinesquii (Lesson, 1827)

Common Name and Ears

Corynorhinus rafinesquii, commonly called Rafinesque's big-eared bat, has ears longer than an inch, matching its common name.

Genus Name and Nose Features

Its genus name Corynorhinus translates to "club-nosed", and like the closely related Townsend's big-eared bat, this species has two lumps on each side of its nose.

Size Measurements

It is a medium-sized bat, with a total body length between 7.5 and 10 cm (3.0 to 3.9 in), a wingspan between 25 and 30 cm (10 to 12 in), and an adult weight ranging from 6 to 13 g (0.21 to 0.46 oz).

Fur Coloration

This bat has gray dorsal fur and white fur on its underside.

Soft Tissue Coloration

Its ears and face are pinkish-brown, while its forearm and wing membrane are dark brown.

Lifespan Data

Some sources note a maximum lifespan of 10 years for this species, but there is a lack of robust data to confirm this.

Congener Lifespan Comparison

More research has been conducted on the closely related Townsend's big-eared bat, which has a wild lifespan estimated between 16 and 30 years.

Habitat Range and Types

While this species is uncommon across its entire range, it can be found in a variety of habitats including coastal plains, riparian areas, and mountainous regions such as Great Smoky Mountains National Park.

Forest Association

In every habitat it occupies, Rafinesque's big-eared bat is associated with large expanses of relatively mature forest.