A nose-leaf, or leaf nose, is an often large, lance-shaped nose, found in bats of the Phyllostomidae, Hipposideridae, and Rhinolophidae families. Because these bats echolocate nasally, this nose-leaf is thought to serve some role in modifying and directing the echolocation call.[1][2]

Nose-leaf diagram of a horseshoe bat

The shape of the nose-leaf can be an important for identifying and classifying bats.[3] Furthermore, the shape of the nose-leaf can identify behavior of the bat itself; by example, in the families that have the nose-leaf, experiments have shown it to act as a baffle and focus their emission beams.[4]


  1. ^ Macdonald, D., ed. (1984). The Encyclopedia of Mammals. New York: Facts on File. pp. 805. ISBN 0-87196-871-1.
  2. ^ Wetterer, Andrea L.; et al. (2000). "Phylogeny of Phyllostomid Bats (Mammalia: Chiroptera): Data from Diverse Morphological Systems, Sex Chromosomes, and Restriction Sites". Bulletin of the American Museum of Natural History. 248 (1): 1–200. doi:10.1206/0003-0090(2000)248<0001:POPBMC>2.0.CO;2. hdl:2246/1595.
  3. ^ Myers, Espinosa, Parr, Jones, Hammond, Dewey (2016). "Noseleaves". animaldiversity.org. The Animal Diversity Web. Retrieved 2 May 2016.{{cite web}}: CS1 maint: uses authors parameter (link)
  4. ^ Vanderelst, Dieter; Lee, Ya-fu; Geipel, Inga; Kalko, Elisabeth; Peremans, Herbert (2013). "The noseleaf of Rhinolophus formosae focuses the Frequency Modulated (FM) component of the calls". Frontiers in Physiology. 4: 191. doi:10.3389/fphys.2013.00191. ISSN 1664-042X. PMC 3715718. PMID 23882226.