Molossus

• Alvarez's Mastiff Bat Molossus alvarezi

  

  This bat has brown dorsal fur, paler underparts and rounded ears. It is recorded in forests and dry scrub and catches mostly moths in flight.

• Thomas's Mastiff Bat Molossus currentium

  

  This molossid bat lives in central and southern South America.

• Pallas' Free-tailed Bat Molossus molossus

  

  Pallas's free-tailed bat is a medium-sized bat recorded in several habitats in Argentina. It roosts in groups in tree hollows and buildings and eats insects.

• Northern Black Mastiff Bat Molossus nigricans

  

  A large bat found from Mexico through Central America to Panama. Adults occur in both black and red color forms, so the name does not describe every individual.

• Black Mastiff Bat Molossus rufus

  

  This large free-tailed bat varies from black to reddish, brown, or yellowish on the back, with paler underparts. It uses forest and savanna habitats and roosts in buildings, tree hollows, rocks, and palms.

• Sinaloan Mastiff Bat Molossus sinaloae

  

  The Sinaloan mastiff bat has dark brown fur above and paler brown fur below. It hunts moths, beetles, and other insects in flight at night.

• Aztec Mastiff Bat Molossus aztecus

  The Aztec mastiff bat has dense dark fur on its back. Records extend from Mexico and Central America to parts of South America.

• Bonda Mastiff Bat Molossus bondae

  This molossid bat has disjunct records in Central America and northwestern South America. A 2020 genetic study separated the northern lineage previously included in M. currentium as M. bondae and used differences in dorsal fur and upper incisors to diagnose it.

• Coiban Mastiff Bat Molossus coibensis

  This small mastiff bat is widespread on the Central and South American mainland, occurring in forests, savannas, and urban areas.

• Fenton's Mastiff Bat Molossus fentoni

  Its back fur is medium to dark brown with pale bases, and its ears are rounded. Known from a few localities in northeastern Ecuador and Guyana, it catches flying insects at savanna–gallery forest interfaces.

• Melin's Mastiff Bat Molossus melini

  Molossus melini has records from Paraná, Argentina, and Curitiba, Brazil. Four Brazilian specimens had hairs with white bases and brown to yellow-brown tips; an Argentine study documented a group roosting in a tree hollow.

• Miller's Mastiff Bat Molossus pretiosus

  Miller's mastiff bat occurs from Central America into northern South America. It forages in open areas such as grassland and dry woodland, and records describe roosts in caves, buildings, and hollow trees.

• Pallas' Free-tailed Bat Molossus molossus

  Pallas's free-tailed bat is a medium-sized bat recorded in several habitats in Argentina. It roosts in groups in tree hollows and buildings and eats insects.

• Thomas's Mastiff Bat Molossus currentium

  This molossid bat lives in central and southern South America.

• Black Mastiff Bat Molossus rufus

  This large free-tailed bat varies from black to reddish, brown, or yellowish on the back, with paler underparts. It uses forest and savanna habitats and roosts in buildings, tree hollows, rocks, and palms.

• Sinaloan Mastiff Bat Molossus sinaloae

  The Sinaloan mastiff bat has dark brown fur above and paler brown fur below. It hunts moths, beetles, and other insects in flight at night.

• Alvarez's Mastiff Bat Molossus alvarezi

  This bat has brown dorsal fur, paler underparts and rounded ears. It is recorded in forests and dry scrub and catches mostly moths in flight.

• Northern Black Mastiff Bat Molossus nigricans

  A large bat found from Mexico through Central America to Panama. Adults occur in both black and red color forms, so the name does not describe every individual.