Antrozoini

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Antrozoini
Pallid Bat (Antrozous pallidus).jpg
Pallid bat (Antrozous pallidus)
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Chiroptera
Family: Vespertilionidae
Subfamily: Vespertilioninae
Tribe: Antrozoini
Miller, 1897
Type genus
Antrozous
H. Allen, 1862
Genera

Antrozoini is a tribe of bats in the subfamily Vespertilioninae of the family Vespertilionidae. It contains the pallid bat (Antrozous pallidus), Van Gelder's bat (Bauerus dubiaquercus), the genus Rhogeessa , and the fossil Anzanycteris . All species in this tribe are found in the Americas.

Contents

Taxonomy

The pallid bat (Antrozous pallidus) was first described in 1856 and first placed in its own genus, Antrozous, in 1862. [1] Several suggestions were made early on about its relationships, including that of Wilhelm Peters in 1865, who placed it in the family Vespertilionidae and considered it to be related to the Australian Nyctophilus . Others suggested a relationship with the vespertilionid genus Plecotus or the Phyllostomidae. [2] In 1897, Gerrit S. Miller described a subfamily Antrozoinae for the pallid bat, [3] but ten years later chose to place Nyctophilus and Antrozous together in a subfamily Nyctophilinae. [2]

Van Gelder's bat was described in 1959 as Antrozous (Bauerus) dubiaquercus; subsequently, the species has been placed in its own genus, Bauerus, while others have retained it in Antrozous with its close relative, the pallid bat, with the current consensus being toward placing them in separate genera. [4] In 1970, Karl F. Koopman and J. Knox Jones recognized a tribe Antrozoini (comprising only Antrozous and Bauerus), which they still placed within Nyctophilinae. In a separate 1970 paper, however, Koopman questioned the affinities between the North American antrozoines and the Australasian Nyctophilus on the basis of biogeography. [5] The next year, Ronald Pine and colleagues further questioned this relationship on the basis of baculum (penis bone) characters, although they cautioned that more penes of Bauerus needed to be studied. [6] Since then, Antrozoini has generally been considered a valid tribe in the subfamily Vespertilioninae, which includes most members of Vespertilionidae. [5]

In 1998, Nancy B. Simmons argued that Antrozoini was not, in fact, closely related to other Vespertilioninae and instead placed the two species in their own family, Antrozoidae, which she considered closer to the Molossidae, another family of bats. [1] However, this hypothesis was later refuted by DNA sequence data, which indicated that the Antrozoini nested within Vespertilioninae. [7] Therefore, Simmons placed the two species in Vespertilionidae in the 2005 third edition of Mammal Species of the World , but she kept them as a subfamily separate from Vespertilioninae, called Antrozoinae, because of continued phylogenetic uncertainty. [1] However all DNA studies place antrozoines in Vespertilioninae, and this led Steven Hoofer and Ronald Van Den Bussche (2003) as well as Zachary Roehrs and colleagues (2010) to classify them as a tribe, Antrozoini, within that subfamily. [8]

Hoofer and Van Den Bussche, who used mitochondrial DNA (mtDNA) sequences in their study, also expanded Antrozoini to include the American genera Rhogeessa and Baeodon (which are often combined as Rhogeessa). These genera were previously placed in the tribe Nycticeiini and considered to be related to the Old World genus Otonycteris . [9] In their 2010 paper, Roehrs and colleagues again found that mtDNA sequences supported a relationship between Antrozous, Bauerus, Rhogeessa, and Baeodon, but what limited nuclear DNA data for Baeodon they had suggested that the genus may be more closely related to Lasiurus . [5]

Distribution and fossil record

The pallid bat occurs in northern Mexico, the western United States (east to Kansas and Texas), and marginally southwestern Canada (British Columbia). [10] It is also found on Cuba; the population there has been classified as a separate species, Antrozous koopmani, by some authorities, but it is now included in the pallid bat. [11] Van Gelder's bat is found from Nayarit in western Mexico south and east to Costa Rica. [12] Most species of Rhogeessa occur in Mexico, but several occur further south, reaching to Bolivia and Brazil. [13] The single species of Baeodon, B. alleni, is restricted to Mexico. [14]

The oldest fossils identified as Antrozous come from the Barstovian (Middle Miocene) of Nebraska; however, their attribution to the genus is tentative. Undoubted Antrozous come from the Hemphillian (Late Miocene) of Texas and additional fossils are from the Pliocene of Texas, Idaho, and Florida. [15] No fossils of Bauerus or Baeodon are known; the only fossils of Rhogeessa come from the Pleistocene of Inciarte in Venezuela. [16] In 1969, John A. White named the genus Anzanycteris on the basis of Pliocene fossils from California (originally identified as Pleistocene) and included it in Nyctophilinae. Later, Malcolm C. McKenna and Susan K. Bell listed Anzanycteris under Antrozoini in their 1997 Classification of Mammals. [17]

Related Research Articles

<span class="mw-page-title-main">Vespertilionidae</span> Family of microbats

Vespertilionidae is a family of microbats, of the order Chiroptera, flying, insect-eating mammals variously described as the common, vesper, or simple nosed bats. The vespertilionid family is the most diverse and widely distributed of bat families, specialised in many forms to occupy a range of habitats and ecological circumstances, and it is frequently observed or the subject of research. The facial features of the species are often simple, as they mainly rely on vocally emitted echolocation. The tails of the species are enclosed by the lower flight membranes between the legs. Over 300 species are distributed all over the world, on every continent except Antarctica. It owes its name to the genus Vespertilio, which takes its name from a word for bat, vespertilio, derived from the Latin term vesper meaning 'evening'; they are termed "evening bats" and were once referred to as "evening birds".

<i>Pipistrellus</i> Genus of bats

Pipistrellus is a genus of bats in the family Vespertilionidae and subfamily Vespertilioninae. The name of the genus is derived from the Italian word pipistrello, meaning "bat".

<span class="mw-page-title-main">Mouse-eared bat</span> Genus of bats

The mouse-eared bats or myotises are a diverse and widespread genus (Myotis) of bats within the family Vespertilionidae. The noun "myotis" itself is a New Latin construction, from the Greek "muós and "oûs", literally translating to "mouse-eared".

<span class="mw-page-title-main">Pallid bat</span> Species of bat

The pallid bat is a species of bat that ranges from western Canada to central Mexico. It is the sole species of its genus and is closely related to Van Gelder's bat, which is sometimes included in Antrozous. Although it has in the past been placed in its own subfamily (Antrozoinae) or even family (Antrozoidae), it is now considered part of the subfamily Vespertilioninae and the tribe Antrozoini.

<span class="mw-page-title-main">Silver-tipped myotis</span> Species of bat

The silver-tipped myotis is a species of mouse-eared bat found in a range of lowland habitats in the Americas.

<span class="mw-page-title-main">Allen's yellow bat</span> Species of bat

Allen's yellow bat is a species of vesper bat. There is some taxonomic debate surrounding this species, with some authors considering Baeodon a genus rather than a subgenus. It is endemic to Mexico.

<span class="mw-page-title-main">Van Gelder's bat</span> Species of bat

Van Gelder's bat or Van Gelder's big-eared bat is a species of vesper bat in the family Vespertilionidae. It is found in Belize, Costa Rica, Honduras, and Mexico. The species is monotypic within its genus. It is part of the tribe Antrozoini within the subfamily Vespertilioninae and is related to the pallid bat. The bat is found in forest habitat from sea level to elevations as high as 2300 m, although not usually above 1300 m, and is insectivorous and crepuscular. It apparently has a fragmented distribution, and is threatened by deforestation.

<i>Myotis vivesi</i> Species of bat

Myotis vivesi, the fish-eating bat or fish-eating myotis, is a species of bat that lives around the Gulf of California, and feeds on fish and crustaceans. It is the largest species of the genus Myotis in the Americas, and has exceptionally large feet, which it uses in hunting. It was described in 1901 by Auguste Ménégaux. It was previously considered the only member of the Myotis subgenus Pizonyx, but Pizonyx is now considered to contain all American Myotis species, along with two Eurasian ones.

<i>Miniopterus</i> Genus of bats

Miniopterus, known as the bent-winged or long winged bats, is the sole genus of the family Miniopteridae. They are small flying insectivorous mammals, micro-bats of the order Chiroptera, with wings over twice the length of the body. The genus had been placed in its own subfamily among the vespertilionid bats, as Miniopterinae, but is now classified as its own family.

<span class="mw-page-title-main">Vespertilioninae</span> Subfamily of bats

The Vespertilioninae are a subfamily of vesper bats from the family Vespertilionidae.

Cistugo is a genus of bats from southern Africa. The two species have historically been included in the genus Myotis, but molecular studies show that the genus is distinct from all other Vespertilionidae, and in fact distinctive enough to be placed in its own family, Cistugidae.

<i>Scotorepens</i> Genus of bats

Scotorepens is a genus of bats within the Vespertilionidae family. Species within this genus are widely distributed across Australia and to the north at Papua New Guinea and Indonesia.

<i>Rhogeessa</i> Genus of bats

Rhogeessa is a genus of bats within the vesper bats family, Vespertilionidae.

Nyctophilus daedalus is a species of bat in the family Vespertilionidae, a flying mammal endemic to northern Australia. They are also referred to as the pallid long-eared bat or northern long-eared bat.

Synemporion keana is an extinct species of bat which lived in what is now Hawaii from at least 320,000 years ago to around 2,100 years ago. It is the only species in the genus Synemporion.

<i>Nyctophilus major</i> Species of bat

Nyctophilus major, referred to as a western long-eared bat, is a species found in forests and woodlands of Southwest Australia.

Onychonycteridae is an extinct family of bats known only from the early Eocene of Europe and North America. The type species, Onychonycteris finneyi, was described in 2008 from two nearly complete skeletons found in the Green River Formation of southwestern Wyoming. Since that time a number of previously described fossil bat species have been assigned to Onychonycteridae, as well as two more recently discovered species

<span class="mw-page-title-main">Perimyotini</span>

Perimyotini is a tribe of bats in the family Vespertilionidae. It contains two species of bats found in North America, each in their own monotypic genus.

References

  1. 1 2 3 Simmons, 2005, p. 498
  2. 1 2 Miller, 1907, pp. 234–235
  3. Miller, 1897, p. 41
  4. Simmons, 2005, pp. 498–499
  5. 1 2 3 Roehrs et al., 2010, p. 1081
  6. Pine et al., 1971, p. 668
  7. Hoofer and Van Den Bussche, 2001, fig. 1; 2003, p. 28
  8. Hoofer and Van Den Bussche, 2003, table 6; Roehrs et al., 2010, p. 1081, fig. 4
  9. Hoofer and Van Den Bussche, 2003, p. 28
  10. Simmons, 2005, p. 498; Kays and Wilson, 2000, p. 146
  11. Czaplewski, 1993, p. 380; Simmons, 2005, pp. 498–499
  12. Simmons, 2005, p. 499
  13. Simmons, 2005, pp. 462–463
  14. Simmons, 2005, p. 462
  15. Czaplewski, 1993
  16. McKenna and Bell, 1997, p. 321; Czaplewski et al., 2005, pp. 773–776
  17. White, 1969; McKenna and Bell, 1997, p. 322

Literature cited

Further reading