Big-eared brown bat Histiotus velatus, photographed by Paulo Ricardo de Oliveira Roth.

Belongs within: Vespertilioninae.

Histiotus is a genus of bats found in South America, marked by the possession of particularly large ears.

Characters (from Miller 1907): Dental formula and structure of teeth as in Eptesicus, but outer upper incisor considerably reduced, its tip scarcely extending beyond cingulum of inner. Skull as in Eptesicus, but more elongated and with larger audital bullae, their diameter more than double width of space between them. Ears very large, at least as long as head, united by ridge or low band of membrane across forehead.

<==Histiotus Gervais 1856 C57
    |--*H. velatus (Geoffroy 1824) (see below for synonymy) C57
    |--H. alienus Thomas 1916 C57
    |--H. macrotus (Poeppig 1935) (see below for synonymy) C57
    |    |--H. m. macrotus C57
    |    `--H. m. laephotis Thomas 1916 C57
    `--H. montanus (Philippi & Lansbeck 1861) [=Vespertilio montanus, Vesperugo montanus, Vesperus montanus] C57
         |--H. m. montanus [incl. Vesperus segethii Peters 1864] C57
         |--H. m. colombiae Thomas 196 C57
         |--H. m. inambarus Anthomy 1920 C57
         `--H. m. magellanicus (Philippi 1866) (see below for synonymy) C57

Histiotus macrotus (Poeppig 1935) [=Nycticeius macrotus, Nycticejus macrotis, Vespertilio macrotus, Vesperugo macrotus; incl. Nycticeus chilensis Leason 1836, Nycticeius chilensis, Plecotus poeppigii Fitzinger 1872] C57

Histiotus montanus magellanicus (Philippi 1866) [=Vespertilio magellanicus, Vesperugo magellanicus, Vesperus magellanicus; incl. Vespertilio capucinus Philippi 1866] C57

*Histiotus velatus (Geoffroy 1824) [=Plecotus velatus, Vespertilio velatus, Vesperugo velatus; incl. Histiotus velatus miotis Thomas 1916] C57

*Type species of generic name indicated


[C57] Cabrera, A. 1957. Catalogo de los mamiferos de America del Sur. I (Metatheria - Unguiculata - Carnivora). Revista del Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” e Instituto Nacional de Investigacion de Las Ciencias Naturales, Ciencias Zool√≥gicas 4 (1): 1-307.

Miller, G. S., Jr. 1907. The families and genera of bats. Smithsonian Institution, United States National Museum, Bulletin 57: i-xvii, 1-282, pl. I-XIV.

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