Abstract:The southern dog-faced bat, Cynomops planirostris (Peters, 1866), is a molossid that occurs from Colombia, Venezuela, and the Guianas, through Peru, Bolivia, and Brazil to Paraguay and Argentina. It is insectivorous, inhabiting areas near rivers and forests. The species is characterized by having a chest and venter with a white or cream-colored spot, a broad upper lip that projects forward, and ears almost touching at their base. Cynomops planirostris is presently listed as “Least Concern” (LC) by the Internat… Show more
“…Los registros del noreste son recientes y se limitan a una localidad en el sur de Misiones y otra en el noroeste de Corrientes (Idoeta et al 2012;Argoitia et al 2021a). Por lo general, esta especie habita áreas urbanas y distintos ambientes naturales, en especial, bosques cercanos a ríos (López Berrizbeitia & Díaz 2021).…”
Incorporamos dos nuevas especies de murciélagos a los citados para la provincia de Santa Fe, Argentina. Un ejemplar de Cynomops planirostris capturado en un bosque en galería del departamento San Javier constituye el primer registro de la especie para la ecorregión Delta e Islas del Paraná y el tercero para el noreste del país. El otro registro corresponde a un ejemplar de Myotis albescens capturado en un ambiente urbano del departamento La Capital. Estos registros aumentan la riqueza de murciélagos de la provincia a 29 especies. Además, brindamos información sobre la historia natural de ambas especies.
“…Los registros del noreste son recientes y se limitan a una localidad en el sur de Misiones y otra en el noroeste de Corrientes (Idoeta et al 2012;Argoitia et al 2021a). Por lo general, esta especie habita áreas urbanas y distintos ambientes naturales, en especial, bosques cercanos a ríos (López Berrizbeitia & Díaz 2021).…”
Incorporamos dos nuevas especies de murciélagos a los citados para la provincia de Santa Fe, Argentina. Un ejemplar de Cynomops planirostris capturado en un bosque en galería del departamento San Javier constituye el primer registro de la especie para la ecorregión Delta e Islas del Paraná y el tercero para el noreste del país. El otro registro corresponde a un ejemplar de Myotis albescens capturado en un ambiente urbano del departamento La Capital. Estos registros aumentan la riqueza de murciélagos de la provincia a 29 especies. Además, brindamos información sobre la historia natural de ambas especies.
The Caatinga, an exclusive biome in Brazil, is the largest tropical dry forest area in the Americas. It is characterized by a semi-arid climate and various soils that harbor a great diversity of flora and fauna. Novel records of aerial insectivorous bat species in the family Molossidae in the Chapada Diamantina, northeastern Brazil are presented. The study is based on field sampling of 115 molossid bat specimens from six genera and 12 taxonomically confirmed species, along with four taxa requiring further evaluation for definitive species identification. All specimens were obtained using mist nets around a small freshwater lagoon surrounded by semideciduous dry forest. The verified genera were Cynomops, Eumops, Molossops, Molossus, Neoplatymops, and Nyctinomops. Our findings enhance the understanding of bat diversity in the Brazilian Caatinga, with the first records of Eumops delticus, E. bonariensis, and Molossus currentium. The most abundant species were Molossus rufus, Eumops glaucinus, Cynomops planirostris, Nyctinomops laticaudatus, and Molossus molossus. Previously unreported morphological and morphometric variations for these Caatinga taxa were examined. Additionally, information on sexual dimorphism in craniodental characteristics of Molossops temminckii and variations in the presence of the sagittal crest in Neoplatymops mattogrossensis are provided. Based on the voucher specimens from this study, the recognized number of species of Molossidae known from the Caatinga has increased to 21. Our results offer new insights into the taxonomy and biogeography of Neotropical molossids, highlighting their importance as members of bat communities in dry forest ecosystems from northeastern South America.
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