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A new species of mastiff bat (Chiroptera: Molossidae: Molossus) from Mexico

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Abstract

We describe a new species of mastiff bat (Molossus) from Mexico on the basis of 46 specimens that differ from all other species of Molossus in size, pelage coloration, and morphological characteristics. The new species is most similar to, and specimens were previously identified as, M. sinaloae; but there is no overlap in most skull measurements and the two species differ in development of sagittal and lambdoidal crests and in certain dental characteristics. M. sinaloae occurs in the dry, low tropical deciduous forest of the Pacific versant of Mexico from Sinaloa to Chiapas, a large geographic gap separates it from the new species, which has been found only in the Yucatán Peninsula.

Resumen

Una nueva especie del género Molossus es descrita con base a 46 ejemplares de colecciones científicas. Esta nueva especie se puede distinguir de las otras especies del género Molossus por el tamaño, la coloración del pelaje y otras características morfológicas. Durante muchos años este nuevo murciélago fue confundido como M. sinaloae, pero la mayoría de las medidas craneales no se sobreponen entre las 2 especies, además el desarrollo de las crestas sagital y lamboidea y las características dentales son diferentes. M. sinaloae se distribuye en Mexico en la vertiente del Pacífico desde Sinaloa hasta Chipas dentro de selva baja caducifolia, y existe una amplia interrupción geográfica que la separa de la nueva especie, la cual se encuentra en la Península de Yucatán.

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Correspondence to Joaquín Arroyo-Cabrales.

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González-Ruiz, N., Ramírez-Pulido, J. & Arroyo-Cabrales, J. A new species of mastiff bat (Chiroptera: Molossidae: Molossus) from Mexico. Mamm Biol 76, 461–469 (2011). https://doi.org/10.1016/j.mambio.2010.06.004

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