Brown long-eared bat Plecotus auritus, copyright Dragiša Savić.

Belongs within: Vespertilionidae.

Plecotus, the long-eared bats, is a Holarctic genus of bats with a narrow rostrum and ears much longer than wide (Miller 1907).

Characters (from Miller 1907): Dental formula i2/3, c1/1, pm2/3, m3/3, total 36. Upper incisors well devoloped, each with a distinct secondary cusp, the inner tooth much smaller than the outer, and separated from canine by a space about equal to its diameter; lower incisors subequal, trifid, the crowns increasing in size from first to third, and forming a continuous, strongly convex row between canines. Upper canines rather small and weak, but not peculiar in form; lower canine with cingulum produced into a distinct though small anterior basal cusp. Cheek teeth normal, though rather small; anterior upper premolar (pm2) in contact with canine, but separated from large premolar (pm4) by a narrow space; posterior premolar with distinct though small inner cusp; upper molars short on inner side, the spaces between the crowns unusually large; m1 and m2 with no trace of hypocone; m3 with crown area about half that of m2, its metacone and third commissure small but distinct; lower molars with all the cusps present and well developed, the protoconid noticeably higher than the hypoconid. Skull with large, elongate and rounded braincase, but with rostrum slender and reduced, its upper surface convex in lateral view; lachrymal ridges well developed (subgenus Plecotus) or lachrymal region smoothly rounded (Corynorhinus); audital bullae large, rounded, their greatest diameter equal to about three times the distance between them. Ears very large, much longer than head, joined across forehead; nostrils opening upward, their orifice continued backward by a slit-like prolongation.

<==Plecotus Geoffroy 1813 [incl. Macrotus Leach 1816 (n. n.) non Gray 1843]M07
    |  i. s.: P. mexicanus (Allen 1916)MaBa86
    |         P. phyllotisMcBi86
    |--*P. auritus (Linnaeus 1758)M07, FS15, K92 [=Vespertilio auritusM07]
    `--+--P. ogneviFS15
       `--+--+--P. macrobullarisFS15
          |  `--+--P. sardusFS15
          |     `--P. taivanusFS15
          `--+--P. sacrimontisFS15 [=P. auritus sacrimontisMcBi86]
             `--+--+--P. balensisFS15
                |  `--P. christiiFS15
                `--+--P. austriacusFS15
                   `--+--P. kolombatoviciFS15
                      `--P. teneriffaeFS15
Nomen nudum: Macrotus europaeus Leach 1816M07

*Type species of generic name indicated


[FS15] Faurby, S., & J.-C. Svenning. 2015. A species-level phylogeny of all extant and late Quaternary extinct mammals using a novel heuristic-hierarchical Bayesian approach. Molecular Phylogenetics and Evolution 84: 14–26.

[K92] Klompen, J. S. H. 1992. Phylogenetic relationships in the mite family Sarcoptidae (Acari: Astigmata). Miscellaneous Publications, Museum of Zoology, University of Michigan 180: i–vi, 1–154.

[MaBa86] Matson, J. O., & R. H. Baker. 1986. Mammals of Zacatecas. Special Publications, Museum of Texas Tech University 24: 1–88.

[McBi86] McBee, K., J. W. Bickham, S. Yenbutra, J. Nabhitabhata & D. A. Schlitter. 1986. Standard karyology of nine species of vespertilionid bats (Chiroptera: Vespertilionidae) from Thailand. Annals of Carnegie Museum 55 (5): 95–116.

[M07] Miller, G. S., Jr. 1907. The families and genera of bats. Smithsonian Institution, United States National Museum, Bulletin 57: i–xvii, 1–282, pls 1–14.

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