Seychelles sheath-tailed bat (Coleura seychellensis) is one of two species of bats that live in the Seychelles. In the XIX and XX century they were numerous, but the second half of the last century their numbers began to decline due to the introduction of new species of plants and because of pesticides that narrow their habitat. Today, there are attempts to save the species from extinction.
The weight of Seychelles sheath-tailed bats averages about 10-11 grams. Bats in this genus generally roost in caves and houses, in crevices and cracks. In the 1860s, the Seychelles sheath-tailed bat was reported to fly around clumps of bamboo towards twilight, and in the daytime to be found roosting in the clefts of the mountainside facing the sea and with a more or less northern aspect. These hiding places were generally covered over with the large fronds of endemic palms. The Seychelles sheath-tailed bat is insectivorous. Its colonies are apparently divided into harem groups.