Natal free-tailed bat

The Natal free-tailed bat (Mormopterus acetabulosus) is a species of bat in the family Molossidae, the free-tailed bats. It is endemic to the island of Mauritius. It is known from fewer than five locations in its range, but it is common at a few sites. It roosts in caves, and it is considered to be an endangered species due to disturbance of its cave habitat.[1]

Natal free-tailed bat
Type illustration by Paul Jossigny from 1770
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Chiroptera
Family: Molossidae
Genus: Mormopterus
Subgenus: Mormopterus
Species:
M. acetabulosus
Binomial name
Mormopterus acetabulosus
Hermann, 1804
Synonyms
  • Vespertilio acetabulosus Hermann, 1804

Taxonomy and etymology

It was described as a new species in 1804 by French naturalist Johann Hermann. Hermann placed it in the genus Vespertilio.[2] In 2008, the Natal free-tailed bat was split into two taxa with the description of a new species, Mormopterus francoismoutoui. The species is called the "Natal" free-tailed bat because of another species Hermann described, Dysopes natalensis, named after the Natal Province of South Africa.

Dysopes natalensis was later synonymized with the Natal free-tailed bat.[3] Its species name "acetabulosus" is Latin for saucer-shaped.[4]

Description

The Natal free-tailed bat is a very small species of bat. Its upper lip is very wrinkled. Its ears are small and connected in the back by a thin interaural membrane. Males have a sebaceous gland, as with some other free-tailed bats, but they do not have an interaural crest. Its dental formula is 1.1.1.33.1.2.3 for a total of 30 teeth.[2]

Range and habitat

It is endemic to Mauritius. There is one "doubtful" record from Madagascar and two records from South Africa which may be vagrants.[1]

Conservation

As of 2017, it is listed as endangered by the IUCN. From 19992017, its population likely declined by more than 80%. Its caves are being disturbed for tourism.[1]

References

  1. Bergmans, W.; Hutson, A.M.; Oleksy, R.; Taylor, F. (2017). "Mormopterus acetabulosus". IUCN Red List of Threatened Species. 2017: e.T71733227A22085232. doi:10.2305/IUCN.UK.2017-2.RLTS.T71733227A22085232.en. Retrieved 19 November 2021.
  2. Kingdon, J.; Happold, D.; Butynski, T.; Hoffmann, M.; Happold, M.; Kalina, J. (2013). Mammals of Africa. Vol. 4. A&C Black. p. 473–474. ISBN 9781408189962.
  3. Goodman, S. M; Van Vuuren, B. Jansen; Ratrimomanarivo, F; Probst, J-M; Bowie, R. C K (2008). "Specific status of populations in the Mascarene Islands referred to Mormopterus acetabulosus (Chiroptera: Molossidae), with description of a new species". Journal of Mammalogy. 89 (5): 1316–1327. doi:10.1644/07-MAMM-A-232.1.
  4. Gledhill, D. (2008). The names of plants. Cambridge University Press. p. 34. ISBN 0521866456.
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