First records of Sturnira bakeri Velazco & Patterson, 2014 (Chiroptera: Phyllostomidae) from Colombia

Abstract

We evaluate the occurrence of S. bakeri in Colombia, a recently described species. We report seven new records and include data on skull measurements of these individuals and information on the new localities. A discriminant analysis suggests that condyloincisive length and dentary length are the most important measurements to separate S. bakeri and S. luisi from S. lilium. However, to distinguish S. bakeri from S. luisi, we used discrete characters proposed in the original descriptions of these two taxa. Sturnira bakeri should no longer be considered a regionally endemic species from Ecuador and Peru.

Records of chromatic disorder in Molossus molossus and Sturnira bakeri (Chiroptera) from western Ecuador

“…The specimen of Sturnira was identified as S. bakeri due to the following characteristics: tetracolored dorsal hair, observable in stereo microscope, short and woolly fur approximately 5 mm in length between the shoulders, tricolor ventral hair, sparsely hairy forearm, dorsal surface of the femur, tibia, and foot densely covered by long hairs, IV metacarpal shorter than III metacarpal, and somatic measurements (FA, T, HB, F, E) in accordan-ce with those described for the species. Cranio-dental diagnostic features observed were oval sphenorbital fissure, globular cranial box, narrow face, well-developed sagittal crest, absent anterior process of the glenoid fossa, and metaconid and entoconid in well-defined M1 and M2, separated from each other by a deep notch (Velazco & Patterson 2014;Sánchez & Pacheco 2016;Montoya-Bustamante et al 2017). The collected specimens were deposited in the mammal collection of the Museo de Zoología of the Universidad de Guayaquil (MZUGM).…”

New records of Sturnira bakeri in northwestern Ecuador: field notes about the species

“…A further study expanded its distribution towards the northwestern Perú, in tropical humid forests (Sánchez and Pacheco 2016). Another study reviewed museum specimens and determined the presence of the species in tropical dry and humid forests from southwestern Colombia, the same study reported voucher specimens with characters different to the original species description (Montoya-Bustamante et al 2017).…”

“…I focused on the variable specimen (MECN 6797) to compare it with S. bakeri original holotype description from the mammal collection of Museo de Zoología de la Pontificia Universidad Católica del Ecuador (QCAZ; Velazco and Patterson 2014), and 2 later descriptions of the species. The first used specimens from the collection of Museo de Historia Natural de la Universidad Nacional Mayor de San Marcos (MUSM; Sanchez and Pacheco 2016), and the second used specimens from the collection of Universidad del Valle (UV; Montoya-Bustamante et al 2017). The weight was taken in grams with a digital balance for both living specimens and vouchers.…”