Extension of the distribution of Townsend's Big-eared Bat, Corynorhinus townsendii (Cooper, 1837) (Chiroptera, Vespertilionidae), to Chiapas, Mexico

We report the first record of Townsend's Big-eared Bat, Corynorhinus townsendii (Cooper, 1837) from Chiapas, Mexico, based on three females collected on 29 September 1979 near Ocozocoautla de Espinosa and stored in the Colección Nacional de Mamíferos of the Instituto de Biología at Universidad Nacional Autónoma de México. The Chiapas locality is ~180 km east of the closest previously known occurrence in Tehuantepec, Oaxaca, Mexico. This extends the distribution of C. townsendii through tropical areas of southeastern Mexico and corroborates the capacity of this species to inhabit a diversity of ecosystems.