Molossidae


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Related to Molossidae: Eumops

Molossidae

[mə′läs·ə‚dē]
(vertebrate zoology)
The free-tailed bats, a family of tropical and subtropical insectivorous mammals in the order Chiroptera.

Molossidae

 

(mastiff bats), a family of mammals of the suborder of insectivorous bats, close to the family of common or flat-nosed bats (Vespertilionidae). They are a highly specialized group of bats and have a very advanced flight apparatus. Their form is compact, and their wings are narrow and sharp. The long, muscular tail emerges from the interfemoral membrane. The conchae auriculae are usually enlarged.

There are about ten genera of mastiff bats, comprising 100 species. They live in the tropical and subtropical zones. One species (Tadarida teniotis) lives in the USSR. It is occasionally found in the Caucasus, southern Kazakhstan, and Middle Asia. Its body length is 81-92 mm, and its forearm length is 57-63 mm. The conchae auriculae are large, pointed forward, and joined by their internal edges. They function as a supplementary lifting surface and partly as “elevators.” The flight of these bats is very swift and direct, resembling the flight of martins.

REFERENCE

Mlekopitaiushchie fauny SSSR, part 1. Moscow-Leningrad, 1963.

V. G. GEPTNER

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No Abundancia Ordenamento Taxonomico decapturas (%) Phyllostomidae Carolliinae Carollia perspicillata (Linnaeus, 1758) 23 12,0 Desmodontinae Desmodus rotundus (Geoffroy, 1810) 1 0,5 Stenodermatinae Artibeus fimbriatus Gray, 1838 21 10,9 Artibeus lituratus (Olfers, 1818) 85 44,3 Artibeus planirostris (Leach, 1821) 1 0,5 Pygoderma bilabiatum (Wagner, 1843) 1 0,5 Sturnira lilium (Geoffroy, 1810) 55 28,6 Molossidae Molossus rufus (Geoffroy, 1805) 1 0,5 Vespertilionidae Vespertilioninae Eptesicus sp.
One study reported a preliminary analysis of foods consumed by three species of Molossidae (Debelica et al.
In Mexico, northwestern sites were dominated by Vespertilionidae and Molossidae; the proportion of Molossidae decreased southeastward.
The families Mormoopidae and Molossidae each had one genus represented.
Bat species positive for Lyssavirus, Europe, 1954-2000 (a) Lyssavirus Antibodies Family Species (b) (c) Vespertilionidae Eptesicus serotinus EBL1a & b EBL1 Pipistrellus pipistrellus NC ND Pipistrellus nathusii NC ND Vespertilio murinus EBL1a ND Myotis dasycneme EBL2a ND Myotis daubentonii EBL2a & b ND Myotis myotis EBL1b EBL1 Myotis nattereri EBL1b ND Nyctalus noctula NC ND Miniopterus schreibersii EBL1b EBL1 Molossidae Tadarida teniotis NC EBL1 Rhinolophidae Rhinolophus EBL1b EBL1 ferrumequinum (a) The additional information was obtained from Kappeler (29), Perez-Jorda et al.
In Molossidae, polydactyly has been reported twice in Mexican free-tailed bats (Tadarida brasiliensis mexicana) in which a bat had six digits on each foot (Koford and Krutzsch, 1948) and another bat had two thumbs on each wing (Henreid, 1958).
Within the Chiroptera, secondary sexual dimorphism is primarily limited to size, although other characteristics, such as dimorphic glands, are not uncommon in the Emballonuridae and Molossidae (Bradbury, 1977).